Merge branch 'master' into xt_shrink_boundary_doc
This commit is contained in:
tangxifan
GitHub
commit
0c4245cc2c
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@ -1 +1 @@
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1.2.1377
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1.2.1384
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|
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@ -358,6 +358,23 @@ static int fast_write_memory_bank_flatten_fabric_bitstream_to_text_file(
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// (1 << (bl & 7)) - This is to find Bit index of the BL
|
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// within that Byte index
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||||
// When we '&' both, we can know if that BL is set or unset
|
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/*
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-----------------------------------------------------------------
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| bit (bl) | Byte index (bl >> 3) | Bit index (1 << (bl & 7)) |
|
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|----------------------------------------------------------------
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||||
| 0 | 0 | b0000_0001 (or 0x01) |
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| 1 | 0 | b0000_0010 (or 0x02) |
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| 2 | 0 | b0000_0100 (or 0x04) |
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| 3 | 0 | b0000_1000 (or 0x08) |
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| 4 | 0 | b0001_0000 (or 0x10) |
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| 5 | 0 | b0010_0000 (or 0x20) |
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| 6 | 0 | b0100_0000 (or 0x40) |
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| 7 | 0 | b1000_0000 (or 0x80) |
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| 8 | 1 | b0000_0001 (or 0x01) |
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| ... | ... | ... |
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------------------------------------------------------------------
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Each BL can be uniquely represented by bit slice in byte array
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*/
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for (size_t bl = 0; bl < lengths.bl; bl++) {
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if (mask[bl >> 3] & (1 << (bl & 7))) {
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if (data[bl >> 3] & (1 << (bl & 7))) {
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@ -132,16 +132,16 @@ static int write_fabric_config_bit_to_xml_file(
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VTR_ASSERT((fabric_size_t)(wl_addr.size()) == lengths.wl);
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}
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fp << "<bl address=\"";
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memset(&bl_addr[bit.bl], '1', 1);
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bl_addr.replace(bit.bl, 1, "1");
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fp << bl_addr.c_str();
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memset(&bl_addr[bit.bl], 'x', 1);
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bl_addr.replace(bit.bl, 1, "x");
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fp << "\"/>\n";
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/* Word line address */
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write_tab_to_file(fp, xml_hierarchy_depth + 1);
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fp << "<wl address=\"";
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memset(&wl_addr[bit.wl], '1', 1);
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wl_addr.replace(bit.wl, 1, "1");
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fp << wl_addr.c_str();
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memset(&wl_addr[bit.wl], '0', 1);
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wl_addr.replace(bit.wl, 1, "0");
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fp << "\"/>\n";
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} else {
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/* Bit line address */
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|
|
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|
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@ -1,6 +1,6 @@
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# Run VPR for the 'and' design
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#--write_rr_graph example_rr_graph.xml
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vpr ${VPR_ARCH_FILE} ${VPR_TESTBENCH_BLIF} --clock_modeling route
|
||||
vpr ${VPR_ARCH_FILE} ${VPR_TESTBENCH_BLIF} --device ${OPENFPGA_VPR_DEVICE} --route_chan_width ${OPENFPGA_VPR_ROUTE_CHAN_WIDTH} --clock_modeling ideal
|
||||
|
||||
# Read OpenFPGA architecture definition
|
||||
read_openfpga_arch -f ${OPENFPGA_ARCH_FILE}
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|
|
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@ -188,7 +188,11 @@ run-task basic_tests/tile_organization/hetero_fabric_tile $@
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|
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echo -e "Testing group config block";
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run-task basic_tests/group_config_block/group_config_block_homo_full_testbench $@
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run-task basic_tests/group_config_block/group_config_block_homo_Lshape_full_testbench $@
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run-task basic_tests/group_config_block/group_config_block_homo_fabric_tile $@
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run-task basic_tests/group_config_block/group_config_block_homo_fabric_tile_core_wrapper $@
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||||
run-task basic_tests/group_config_block/group_config_block_hetero_fabric_tile $@
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run-task basic_tests/group_config_block/group_config_block_hetero_fabric_tile_Lshape $@
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||||
|
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echo -e "Testing global port definition from tiles";
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run-task basic_tests/global_tile_ports/global_tile_clock $@
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|
|
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@ -0,0 +1,49 @@
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# = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
|
||||
# Configuration file for running experiments
|
||||
# = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
|
||||
# timeout_each_job : FPGA Task script splits fpga flow into multiple jobs
|
||||
# Each job execute fpga_flow script on combination of architecture & benchmark
|
||||
# timeout_each_job is timeout for each job
|
||||
# = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
|
||||
|
||||
[GENERAL]
|
||||
run_engine=openfpga_shell
|
||||
power_tech_file = ${PATH:OPENFPGA_PATH}/openfpga_flow/tech/PTM_45nm/45nm.xml
|
||||
power_analysis = false
|
||||
spice_output=false
|
||||
verilog_output=true
|
||||
timeout_each_job = 20*60
|
||||
fpga_flow=yosys_vpr
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|
||||
[OpenFPGA_SHELL]
|
||||
openfpga_shell_template=${PATH:OPENFPGA_PATH}/openfpga_flow/openfpga_shell_scripts/group_config_block_preconfig_testbench_example_script.openfpga
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openfpga_arch_file=${PATH:OPENFPGA_PATH}/openfpga_flow/openfpga_arch/k4_frac_N8_reset_softadder_register_scan_chain_dsp8_caravel_io_skywater130nm_fdhd_cc_openfpga.xml
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openfpga_sim_setting_file=${PATH:OPENFPGA_PATH}/openfpga_flow/openfpga_simulation_settings/fixed_sim_openfpga.xml
|
||||
openfpga_vpr_extra_options=--constant_net_method route --skip_sync_clustering_and_routing_results on
|
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openfpga_pb_pin_fixup_command = pb_pin_fixup --verbose
|
||||
openfpga_vpr_device=3x2L
|
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openfpga_vpr_route_chan_width=60
|
||||
openfpga_group_tile_config_option=--group_tile ${PATH:TASK_DIR}/config/tile_config.xml
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openfpga_verilog_testbench_options=
|
||||
openfpga_add_fpga_core_module=
|
||||
|
||||
[ARCHITECTURES]
|
||||
arch0=${PATH:OPENFPGA_PATH}/openfpga_flow/vpr_arch/k4_frac_N8_tileableL_reset_softadder_register_scan_chain_dsp8_nonLR_caravel_io_skywater130nm.xml
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|
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[BENCHMARKS]
|
||||
bench0=${PATH:OPENFPGA_PATH}/openfpga_flow/benchmarks/micro_benchmark/mac/mac_2/mac_2.v
|
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|
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[SYNTHESIS_PARAM]
|
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# Yosys script parameters
|
||||
bench_yosys_cell_sim_verilog_common=${PATH:OPENFPGA_PATH}/openfpga_flow/openfpga_yosys_techlib/k4_frac_N8_tileable_reset_softadder_register_scan_chain_dsp8_nonLR_caravel_io_skywater130nm_cell_sim.v
|
||||
bench_yosys_dsp_map_verilog_common=${PATH:OPENFPGA_PATH}/openfpga_flow/openfpga_yosys_techlib/k4_frac_N8_tileable_reset_softadder_register_scan_chain_dsp8_nonLR_caravel_io_skywater130nm_dsp_map.v
|
||||
bench_yosys_dsp_map_parameters_common=-D DSP_A_MAXWIDTH=8 -D DSP_B_MAXWIDTH=8 -D DSP_A_MINWIDTH=2 -D DSP_B_MINWIDTH=2 -D DSP_NAME=mult_8x8
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||||
bench_read_verilog_options_common = -nolatches
|
||||
bench_yosys_common=${PATH:OPENFPGA_PATH}/openfpga_flow/misc/ys_tmpl_yosys_vpr_dsp_flow.ys
|
||||
bench_yosys_rewrite_common=${PATH:OPENFPGA_PATH}/openfpga_flow/misc/ys_tmpl_yosys_vpr_flow_with_rewrite.ys;${PATH:OPENFPGA_PATH}/openfpga_flow/misc/ys_tmpl_rewrite_flow.ys
|
||||
|
||||
bench0_top = mac_2
|
||||
|
||||
[SCRIPT_PARAM_MIN_ROUTE_CHAN_WIDTH]
|
||||
end_flow_with_test=
|
||||
vpr_fpga_verilog_formal_verification_top_netlist=
|
||||
|
|
@ -0,0 +1 @@
|
|||
<tiles style="top_left"/>
|
||||
|
|
@ -0,0 +1,38 @@
|
|||
# = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
|
||||
# Configuration file for running experiments
|
||||
# = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
|
||||
# timeout_each_job : FPGA Task script splits fpga flow into multiple jobs
|
||||
# Each job execute fpga_flow script on combination of architecture & benchmark
|
||||
# timeout_each_job is timeout for each job
|
||||
# = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
|
||||
|
||||
[GENERAL]
|
||||
run_engine=openfpga_shell
|
||||
power_tech_file = ${PATH:OPENFPGA_PATH}/openfpga_flow/tech/PTM_45nm/45nm.xml
|
||||
power_analysis = true
|
||||
spice_output=false
|
||||
verilog_output=true
|
||||
timeout_each_job = 20*60
|
||||
fpga_flow=yosys_vpr
|
||||
|
||||
[OpenFPGA_SHELL]
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openfpga_shell_template=${PATH:OPENFPGA_PATH}/openfpga_flow/openfpga_shell_scripts/group_config_block_full_testbench_example_script.openfpga
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openfpga_arch_file=${PATH:OPENFPGA_PATH}/openfpga_flow/openfpga_arch/k4_N4_40nm_cc_openfpga.xml
|
||||
openfpga_sim_setting_file=${PATH:OPENFPGA_PATH}/openfpga_flow/openfpga_simulation_settings/auto_sim_openfpga.xml
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||||
openfpga_group_tile_config_option=
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openfpga_add_fpga_core_module=
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||||
openfpga_vpr_device=4x4L
|
||||
openfpga_vpr_route_chan_width=20
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||||
|
||||
[ARCHITECTURES]
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||||
arch0=${PATH:OPENFPGA_PATH}/openfpga_flow/vpr_arch/k4_N4_tileableL_40nm.xml
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[BENCHMARKS]
|
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bench0=${PATH:OPENFPGA_PATH}/openfpga_flow/benchmarks/micro_benchmark/or2/or2.v
|
||||
|
||||
[SYNTHESIS_PARAM]
|
||||
bench_read_verilog_options_common = -nolatches
|
||||
bench0_top = or2
|
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|
||||
[SCRIPT_PARAM_MIN_ROUTE_CHAN_WIDTH]
|
||||
end_flow_with_test=
|
||||
|
|
@ -21,6 +21,8 @@ openfpga_arch_file=${PATH:OPENFPGA_PATH}/openfpga_flow/openfpga_arch/k4_N4_40nm_
|
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openfpga_sim_setting_file=${PATH:OPENFPGA_PATH}/openfpga_flow/openfpga_simulation_settings/auto_sim_openfpga.xml
|
||||
openfpga_group_tile_config_option=--group_tile ${PATH:TASK_DIR}/config/tile_config.xml
|
||||
openfpga_add_fpga_core_module=
|
||||
openfpga_vpr_device=auto
|
||||
openfpga_vpr_route_chan_width=20
|
||||
|
||||
[ARCHITECTURES]
|
||||
arch0=${PATH:OPENFPGA_PATH}/openfpga_flow/vpr_arch/k4_N4_tileable_TileOrgzTl_40nm.xml
|
||||
|
|
|
|||
|
|
@ -21,6 +21,8 @@ openfpga_arch_file=${PATH:OPENFPGA_PATH}/openfpga_flow/openfpga_arch/k4_N4_40nm_
|
|||
openfpga_sim_setting_file=${PATH:OPENFPGA_PATH}/openfpga_flow/openfpga_simulation_settings/auto_sim_openfpga.xml
|
||||
openfpga_group_tile_config_option=--group_tile ${PATH:TASK_DIR}/config/tile_config.xml
|
||||
openfpga_add_fpga_core_module=add_fpga_core_to_fabric --instance_name fpga_core_inst
|
||||
openfpga_vpr_device=auto
|
||||
openfpga_vpr_route_chan_width=20
|
||||
|
||||
[ARCHITECTURES]
|
||||
arch0=${PATH:OPENFPGA_PATH}/openfpga_flow/vpr_arch/k4_N4_tileable_TileOrgzTl_40nm.xml
|
||||
|
|
|
|||
|
|
@ -21,6 +21,8 @@ openfpga_arch_file=${PATH:OPENFPGA_PATH}/openfpga_flow/openfpga_arch/k4_N4_40nm_
|
|||
openfpga_sim_setting_file=${PATH:OPENFPGA_PATH}/openfpga_flow/openfpga_simulation_settings/auto_sim_openfpga.xml
|
||||
openfpga_group_tile_config_option=
|
||||
openfpga_add_fpga_core_module=
|
||||
openfpga_vpr_device=2x2
|
||||
openfpga_vpr_route_chan_width=20
|
||||
|
||||
[ARCHITECTURES]
|
||||
arch0=${PATH:OPENFPGA_PATH}/openfpga_flow/vpr_arch/k4_N4_tileable_TileOrgzTl_40nm.xml
|
||||
|
|
|
|||
|
|
@ -0,0 +1,334 @@
|
|||
<?xml version="1.0"?>
|
||||
<!--
|
||||
Architecture with no fracturable LUTs
|
||||
|
||||
- 40 nm technology
|
||||
- General purpose logic block:
|
||||
K = 4, N = 4
|
||||
- Routing architecture: L = 4, fc_in = 0.15, Fc_out = 0.1
|
||||
|
||||
Details on Modelling:
|
||||
|
||||
Based on flagship k6_frac_N10_mem32K_40nm.xml architecture. This architecture has no fracturable LUTs nor any heterogeneous blocks.
|
||||
|
||||
|
||||
Authors: Jason Luu, Jeff Goeders, Vaughn Betz
|
||||
-->
|
||||
<architecture>
|
||||
<!--
|
||||
ODIN II specific config begins
|
||||
Describes the types of user-specified netlist blocks (in blif, this corresponds to
|
||||
".model [type_of_block]") that this architecture supports.
|
||||
|
||||
Note: Basic LUTs, I/Os, and flip-flops are not included here as there are
|
||||
already special structures in blif (.names, .input, .output, and .latch)
|
||||
that describe them.
|
||||
-->
|
||||
<models>
|
||||
<!-- A virtual model for I/O to be used in the physical mode of io block -->
|
||||
<model name="io">
|
||||
<input_ports>
|
||||
<port name="outpad"/>
|
||||
</input_ports>
|
||||
<output_ports>
|
||||
<port name="inpad"/>
|
||||
</output_ports>
|
||||
</model>
|
||||
</models>
|
||||
<tiles>
|
||||
<tile name="io" area="0">
|
||||
<sub_tile name="io" capacity="8">
|
||||
<equivalent_sites>
|
||||
<site pb_type="io"/>
|
||||
</equivalent_sites>
|
||||
<input name="outpad" num_pins="1"/>
|
||||
<output name="inpad" num_pins="1"/>
|
||||
<fc in_type="frac" in_val="0.15" out_type="frac" out_val="0.10"/>
|
||||
<pinlocations pattern="custom">
|
||||
<loc side="left">io.outpad io.inpad</loc>
|
||||
<loc side="top">io.outpad io.inpad</loc>
|
||||
<loc side="right">io.outpad io.inpad</loc>
|
||||
<loc side="bottom">io.outpad io.inpad</loc>
|
||||
</pinlocations>
|
||||
</sub_tile>
|
||||
</tile>
|
||||
<tile name="clb" area="53894">
|
||||
<sub_tile name="clb">
|
||||
<equivalent_sites>
|
||||
<site pb_type="clb"/>
|
||||
</equivalent_sites>
|
||||
<input name="I" num_pins="10" equivalent="full"/>
|
||||
<output name="O" num_pins="4" equivalent="none"/>
|
||||
<clock name="clk" num_pins="1"/>
|
||||
<fc in_type="frac" in_val="0.15" out_type="frac" out_val="0.10"/>
|
||||
<pinlocations pattern="spread"/>
|
||||
</sub_tile>
|
||||
</tile>
|
||||
</tiles>
|
||||
<!-- ODIN II specific config ends -->
|
||||
<!-- Physical descriptions begin -->
|
||||
<layout tileable="true" shrink_boundary="true">
|
||||
<auto_layout aspect_ratio="1.0">
|
||||
<!--Perimeter of 'io' blocks with 'EMPTY' blocks at corners-->
|
||||
<perimeter type="io" priority="100"/>
|
||||
<corners type="EMPTY" priority="101"/>
|
||||
<!--Fill with 'clb'-->
|
||||
<fill type="clb" priority="10"/>
|
||||
</auto_layout>
|
||||
<fixed_layout name="2x2" width="4" height="4">
|
||||
<!--Perimeter of 'io' blocks with 'EMPTY' blocks at corners-->
|
||||
<perimeter type="io" priority="100"/>
|
||||
<corners type="EMPTY" priority="101"/>
|
||||
<!--Fill with 'clb'-->
|
||||
<fill type="clb" priority="10"/>
|
||||
</fixed_layout>
|
||||
<fixed_layout name="4x4" width="6" height="6">
|
||||
<!--Perimeter of 'io' blocks with 'EMPTY' blocks at corners-->
|
||||
<perimeter type="io" priority="100"/>
|
||||
<corners type="EMPTY" priority="101"/>
|
||||
<!--Fill with 'clb'-->
|
||||
<fill type="clb" priority="10"/>
|
||||
</fixed_layout>
|
||||
<fixed_layout name="4x4L" width="6" height="6">
|
||||
<region type="EMPTY" startx="0" starty="2" endx="2" endy="5" priority="101"/>
|
||||
<!--Perimeter of 'io' blocks with 'EMPTY' blocks at corners-->
|
||||
<perimeter type="io" priority="100"/>
|
||||
<corners type="EMPTY" priority="101"/>
|
||||
<!--Fill with 'clb'-->
|
||||
<fill type="clb" priority="10"/>
|
||||
</fixed_layout>
|
||||
<fixed_layout name="48x48" width="50" height="50">
|
||||
<!--Perimeter of 'io' blocks with 'EMPTY' blocks at corners-->
|
||||
<perimeter type="io" priority="100"/>
|
||||
<corners type="EMPTY" priority="101"/>
|
||||
<!--Fill with 'clb'-->
|
||||
<fill type="clb" priority="10"/>
|
||||
</fixed_layout>
|
||||
<fixed_layout name="72x72" width="74" height="74">
|
||||
<!--Perimeter of 'io' blocks with 'EMPTY' blocks at corners-->
|
||||
<perimeter type="io" priority="100"/>
|
||||
<corners type="EMPTY" priority="101"/>
|
||||
<!--Fill with 'clb'-->
|
||||
<fill type="clb" priority="10"/>
|
||||
</fixed_layout>
|
||||
<fixed_layout name="96x96" width="98" height="98">
|
||||
<!--Perimeter of 'io' blocks with 'EMPTY' blocks at corners-->
|
||||
<perimeter type="io" priority="100"/>
|
||||
<corners type="EMPTY" priority="101"/>
|
||||
<!--Fill with 'clb'-->
|
||||
<fill type="clb" priority="10"/>
|
||||
</fixed_layout>
|
||||
</layout>
|
||||
<device>
|
||||
<!-- VB & JL: Using Ian Kuon's transistor sizing and drive strength data for routing, at 40 nm. Ian used BPTM
|
||||
models. We are modifying the delay values however, to include metal C and R, which allows more architecture
|
||||
experimentation. We are also modifying the relative resistance of PMOS to be 1.8x that of NMOS
|
||||
(vs. Ian's 3x) as 1.8x lines up with Jeff G's data from a 45 nm process (and is more typical of
|
||||
45 nm in general). I'm upping the Rmin_nmos from Ian's just over 6k to nearly 9k, and dropping
|
||||
RminW_pmos from 18k to 16k to hit this 1.8x ratio, while keeping the delays of buffers approximately
|
||||
lined up with Stratix IV.
|
||||
We are using Jeff G.'s capacitance data for 45 nm (in tech/ptm_45nm).
|
||||
Jeff's tables list C in for transistors with widths in multiples of the minimum feature size (45 nm).
|
||||
The minimum contactable transistor is 2.5 * 45 nm, so I need to multiply drive strength sizes in this file
|
||||
by 2.5x when looking up in Jeff's tables.
|
||||
The delay values are lined up with Stratix IV, which has an architecture similar to this
|
||||
proposed FPGA, and which is also 40 nm
|
||||
C_ipin_cblock: input capacitance of a track buffer, which VPR assumes is a single-stage
|
||||
4x minimum drive strength buffer. -->
|
||||
<sizing R_minW_nmos="8926" R_minW_pmos="16067"/>
|
||||
<!-- The grid_logic_tile_area below will be used for all blocks that do not explicitly set their own (non-routing)
|
||||
area; set to 0 since we explicitly set the area of all blocks currently in this architecture file.
|
||||
-->
|
||||
<area grid_logic_tile_area="0"/>
|
||||
<chan_width_distr>
|
||||
<x distr="uniform" peak="1.000000"/>
|
||||
<y distr="uniform" peak="1.000000"/>
|
||||
</chan_width_distr>
|
||||
<switch_block type="wilton" fs="3"/>
|
||||
<connection_block input_switch_name="ipin_cblock"/>
|
||||
</device>
|
||||
<switchlist>
|
||||
<!-- VB: the mux_trans_size and buf_size data below is in minimum width transistor *areas*, assuming the purple
|
||||
book area formula. This means the mux transistors are about 5x minimum drive strength.
|
||||
We assume the first stage of the buffer is 3x min drive strength to be reasonable given the large
|
||||
mux transistors, and this gives a reasonable stage ratio of a bit over 5x to the second stage. We assume
|
||||
the n and p transistors in the first stage are equal-sized to lower the buffer trip point, since it's fed
|
||||
by a pass transistor mux. We can then reverse engineer the buffer second stage to hit the specified
|
||||
buf_size (really buffer area) - 16.2x minimum drive nmos and 1.8*16.2 = 29.2x minimum drive.
|
||||
I then took the data from Jeff G.'s PTM modeling of 45 nm to get the Cin (gate of first stage) and Cout
|
||||
(diff of second stage) listed below. Jeff's models are in tech/ptm_45nm, and are in min feature multiples.
|
||||
The minimum contactable transistor is 2.5 * 45 nm, so I need to multiply the drive strength sizes above by
|
||||
2.5x when looking up in Jeff's tables.
|
||||
Finally, we choose a switch delay (58 ps) that leads to length 4 wires having a delay equal to that of SIV of 126 ps.
|
||||
This also leads to the switch being 46% of the total wire delay, which is reasonable. -->
|
||||
<switch type="mux" name="0" R="551" Cin=".77e-15" Cout="4e-15" Tdel="58e-12" mux_trans_size="2.630740" buf_size="27.645901"/>
|
||||
<!--switch ipin_cblock resistance set to yeild for 4x minimum drive strength buffer-->
|
||||
<switch type="mux" name="ipin_cblock" R="2231.5" Cout="0." Cin="1.47e-15" Tdel="7.247000e-11" mux_trans_size="1.222260" buf_size="auto"/>
|
||||
</switchlist>
|
||||
<segmentlist>
|
||||
<!--- VB & JL: using ITRS metal stack data, 96 nm half pitch wires, which are intermediate metal width/space.
|
||||
With the 96 nm half pitch, such wires would take 60 um of height, vs. a 90 nm high (approximated as square) Stratix IV tile so this seems
|
||||
reasonable. Using a tile length of 90 nm, corresponding to the length of a Stratix IV tile if it were square. -->
|
||||
<segment name="L4" freq="1.000000" length="4" type="unidir" Rmetal="101" Cmetal="22.5e-15">
|
||||
<mux name="0"/>
|
||||
<sb type="pattern">1 1 1 1 1</sb>
|
||||
<cb type="pattern">1 1 1 1</cb>
|
||||
</segment>
|
||||
</segmentlist>
|
||||
<complexblocklist>
|
||||
<!-- Define I/O pads begin -->
|
||||
<!-- Capacity is a unique property of I/Os, it is the maximum number of I/Os that can be placed at the same (X,Y) location on the FPGA -->
|
||||
<!-- Not sure of the area of an I/O (varies widely), and it's not relevant to the design of the FPGA core, so we're setting it to 0. -->
|
||||
<pb_type name="io">
|
||||
<input name="outpad" num_pins="1"/>
|
||||
<output name="inpad" num_pins="1"/>
|
||||
<!-- A mode denotes the physical implementation of an I/O
|
||||
This mode will be not packable but is mainly used for fabric verilog generation
|
||||
-->
|
||||
<mode name="physical" disable_packing="true">
|
||||
<pb_type name="iopad" blif_model=".subckt io" num_pb="1">
|
||||
<input name="outpad" num_pins="1"/>
|
||||
<output name="inpad" num_pins="1"/>
|
||||
</pb_type>
|
||||
<interconnect>
|
||||
<direct name="outpad" input="io.outpad" output="iopad.outpad">
|
||||
<delay_constant max="1.394e-11" in_port="io.outpad" out_port="iopad.outpad"/>
|
||||
</direct>
|
||||
<direct name="inpad" input="iopad.inpad" output="io.inpad">
|
||||
<delay_constant max="4.243e-11" in_port="iopad.inpad" out_port="io.inpad"/>
|
||||
</direct>
|
||||
</interconnect>
|
||||
</mode>
|
||||
<!-- IOs can operate as either inputs or outputs.
|
||||
Delays below come from Ian Kuon. They are small, so they should be interpreted as
|
||||
the delays to and from registers in the I/O (and generally I/Os are registered
|
||||
today and that is when you timing analyze them.
|
||||
-->
|
||||
<mode name="inpad">
|
||||
<pb_type name="inpad" blif_model=".input" num_pb="1">
|
||||
<output name="inpad" num_pins="1"/>
|
||||
</pb_type>
|
||||
<interconnect>
|
||||
<direct name="inpad" input="inpad.inpad" output="io.inpad">
|
||||
<delay_constant max="4.243e-11" in_port="inpad.inpad" out_port="io.inpad"/>
|
||||
</direct>
|
||||
</interconnect>
|
||||
</mode>
|
||||
<mode name="outpad">
|
||||
<pb_type name="outpad" blif_model=".output" num_pb="1">
|
||||
<input name="outpad" num_pins="1"/>
|
||||
</pb_type>
|
||||
<interconnect>
|
||||
<direct name="outpad" input="io.outpad" output="outpad.outpad">
|
||||
<delay_constant max="1.394e-11" in_port="io.outpad" out_port="outpad.outpad"/>
|
||||
</direct>
|
||||
</interconnect>
|
||||
</mode>
|
||||
<!-- Every input pin is driven by 15% of the tracks in a channel, every output pin is driven by 10% of the tracks in a channel -->
|
||||
<!-- IOs go on the periphery of the FPGA, for consistency,
|
||||
make it physically equivalent on all sides so that only one definition of I/Os is needed.
|
||||
If I do not make a physically equivalent definition, then I need to define 4 different I/Os, one for each side of the FPGA
|
||||
-->
|
||||
<!-- Place I/Os on the sides of the FPGA -->
|
||||
<power method="ignore"/>
|
||||
</pb_type>
|
||||
<!-- Define I/O pads ends -->
|
||||
<!-- Define general purpose logic block (CLB) begin -->
|
||||
<!--- Area calculation: Total Stratix IV tile area is about 8100 um^2, and a minimum width transistor
|
||||
area is 60 L^2 yields a tile area of 84375 MWTAs.
|
||||
Routing at W=300 is 30481 MWTAs, leaving us with a total of 53000 MWTAs for logic block area
|
||||
This means that only 37% of our area is in the general routing, and 63% is inside the logic
|
||||
block. Note that the crossbar / local interconnect is considered part of the logic block
|
||||
area in this analysis. That is a lower proportion of of routing area than most academics
|
||||
assume, but note that the total routing area really includes the crossbar, which would push
|
||||
routing area up significantly, we estimate into the ~70% range.
|
||||
-->
|
||||
<pb_type name="clb">
|
||||
<input name="I" num_pins="10" equivalent="full"/>
|
||||
<output name="O" num_pins="4" equivalent="none"/>
|
||||
<clock name="clk" num_pins="1"/>
|
||||
<!-- Describe basic logic element.
|
||||
Each basic logic element has a 4-LUT that can be optionally registered
|
||||
-->
|
||||
<pb_type name="fle" num_pb="4">
|
||||
<input name="in" num_pins="4"/>
|
||||
<output name="out" num_pins="1"/>
|
||||
<clock name="clk" num_pins="1"/>
|
||||
<!-- 4-LUT mode definition begin -->
|
||||
<mode name="n1_lut4">
|
||||
<!-- Define 4-LUT mode -->
|
||||
<pb_type name="ble4" num_pb="1">
|
||||
<input name="in" num_pins="4"/>
|
||||
<output name="out" num_pins="1"/>
|
||||
<clock name="clk" num_pins="1"/>
|
||||
<!-- Define LUT -->
|
||||
<pb_type name="lut4" blif_model=".names" num_pb="1" class="lut">
|
||||
<input name="in" num_pins="4" port_class="lut_in"/>
|
||||
<output name="out" num_pins="1" port_class="lut_out"/>
|
||||
<!-- LUT timing using delay matrix -->
|
||||
<delay_matrix type="max" in_port="lut4.in" out_port="lut4.out">
|
||||
261e-12
|
||||
261e-12
|
||||
261e-12
|
||||
261e-12
|
||||
</delay_matrix>
|
||||
</pb_type>
|
||||
<!-- Define flip-flop -->
|
||||
<pb_type name="ff" blif_model=".latch" num_pb="1" class="flipflop">
|
||||
<input name="D" num_pins="1" port_class="D"/>
|
||||
<output name="Q" num_pins="1" port_class="Q"/>
|
||||
<clock name="clk" num_pins="1" port_class="clock"/>
|
||||
<T_setup value="66e-12" port="ff.D" clock="clk"/>
|
||||
<T_clock_to_Q max="124e-12" port="ff.Q" clock="clk"/>
|
||||
</pb_type>
|
||||
<interconnect>
|
||||
<direct name="direct1" input="ble4.in" output="lut4[0:0].in"/>
|
||||
<direct name="direct2" input="lut4.out" output="ff.D">
|
||||
<!-- Advanced user option that tells CAD tool to find LUT+FF pairs in netlist -->
|
||||
<pack_pattern name="ble4" in_port="lut4.out" out_port="ff.D"/>
|
||||
</direct>
|
||||
<direct name="direct3" input="ble4.clk" output="ff.clk"/>
|
||||
<mux name="mux1" input="ff.Q lut4.out" output="ble4.out">
|
||||
<!-- LUT to output is faster than FF to output on a Stratix IV -->
|
||||
<delay_constant max="25e-12" in_port="lut4.out" out_port="ble4.out"/>
|
||||
<delay_constant max="45e-12" in_port="ff.Q" out_port="ble4.out"/>
|
||||
</mux>
|
||||
</interconnect>
|
||||
</pb_type>
|
||||
<interconnect>
|
||||
<direct name="direct1" input="fle.in" output="ble4.in"/>
|
||||
<direct name="direct2" input="ble4.out" output="fle.out[0:0]"/>
|
||||
<direct name="direct3" input="fle.clk" output="ble4.clk"/>
|
||||
</interconnect>
|
||||
</mode>
|
||||
<!-- 6-LUT mode definition end -->
|
||||
</pb_type>
|
||||
<interconnect>
|
||||
<!-- We use a full crossbar to get logical equivalence at inputs of CLB
|
||||
The delays below come from Stratix IV. the delay through a connection block
|
||||
input mux + the crossbar in Stratix IV is 167 ps. We already have a 72 ps
|
||||
delay on the connection block input mux (modeled by Ian Kuon), so the remaining
|
||||
delay within the crossbar is 95 ps.
|
||||
The delays of cluster feedbacks in Stratix IV is 100 ps, when driven by a LUT.
|
||||
Since all our outputs LUT outputs go to a BLE output, and have a delay of
|
||||
25 ps to do so, we subtract 25 ps from the 100 ps delay of a feedback
|
||||
to get the part that should be marked on the crossbar. -->
|
||||
<complete name="crossbar" input="clb.I fle[3:0].out" output="fle[3:0].in">
|
||||
<delay_constant max="95e-12" in_port="clb.I" out_port="fle[3:0].in"/>
|
||||
<delay_constant max="75e-12" in_port="fle[3:0].out" out_port="fle[3:0].in"/>
|
||||
</complete>
|
||||
<complete name="clks" input="clb.clk" output="fle[3:0].clk">
|
||||
</complete>
|
||||
<!-- This way of specifying direct connection to clb outputs is important because this architecture uses automatic spreading of opins.
|
||||
By grouping to output pins in this fashion, if a logic block is completely filled by 6-LUTs,
|
||||
then the outputs those 6-LUTs take get evenly distributed across all four sides of the CLB instead of clumped on two sides (which is what happens with a more
|
||||
naive specification).
|
||||
-->
|
||||
<direct name="clbouts1" input="fle[3:0].out" output="clb.O"/>
|
||||
</interconnect>
|
||||
<!-- Every input pin is driven by 15% of the tracks in a channel, every output pin is driven by 10% of the tracks in a channel -->
|
||||
<!-- Place this general purpose logic block in any unspecified column -->
|
||||
</pb_type>
|
||||
<!-- Define general purpose logic block (CLB) ends -->
|
||||
</complexblocklist>
|
||||
</architecture>
|
||||
|
|
@ -0,0 +1,933 @@
|
|||
<?xml version="1.0"?>
|
||||
<!--
|
||||
Low-cost homogeneous FPGA Architecture.
|
||||
|
||||
- Skywater 130 nm technology
|
||||
- General purpose logic block:
|
||||
K = 4, N = 8, fracturable 4 LUTs (can operate as one 4-LUT or two 3-LUTs with all 3 inputs shared)
|
||||
with optionally registered outputs
|
||||
- Heterogeneous block
|
||||
8-bit multiplier
|
||||
- Routing architecture:
|
||||
- 10% L = 1, fc_in = 0.15, Fc_out = 0.10
|
||||
- 10% L = 2, fc_in = 0.15, Fc_out = 0.10
|
||||
- 80% L = 4, fc_in = 0.15, Fc_out = 0.10
|
||||
- 100 routing tracks per channel
|
||||
|
||||
Authors: Xifan Tang
|
||||
-->
|
||||
<architecture>
|
||||
<!--
|
||||
ODIN II specific config begins
|
||||
Describes the types of user-specified netlist blocks (in blif, this corresponds to
|
||||
".model [type_of_block]") that this architecture supports.
|
||||
|
||||
Note: Basic LUTs, I/Os, and flip-flops are not included here as there are
|
||||
already special structures in blif (.names, .input, .output, and .latch)
|
||||
that describe them.
|
||||
-->
|
||||
<models>
|
||||
<model name="mult_8">
|
||||
<input_ports>
|
||||
<port name="A" combinational_sink_ports="Y"/>
|
||||
<port name="B" combinational_sink_ports="Y"/>
|
||||
</input_ports>
|
||||
<output_ports>
|
||||
<port name="Y"/>
|
||||
</output_ports>
|
||||
</model>
|
||||
<!-- A virtual model for I/O to be used in the physical mode of io block -->
|
||||
<model name="io">
|
||||
<input_ports>
|
||||
<port name="outpad"/>
|
||||
</input_ports>
|
||||
<output_ports>
|
||||
<port name="inpad"/>
|
||||
</output_ports>
|
||||
</model>
|
||||
<model name="adder_lut4">
|
||||
<input_ports>
|
||||
<port name="in" combinational_sink_ports="lut2_out lut4_out"/>
|
||||
</input_ports>
|
||||
<output_ports>
|
||||
<port name="lut2_out"/>
|
||||
<port name="lut4_out"/>
|
||||
</output_ports>
|
||||
</model>
|
||||
<model name="carry_follower">
|
||||
<input_ports>
|
||||
<port name="a" combinational_sink_ports="cout"/>
|
||||
<port name="b" combinational_sink_ports="cout"/>
|
||||
<port name="cin" combinational_sink_ports="cout"/>
|
||||
</input_ports>
|
||||
<output_ports>
|
||||
<port name="cout"/>
|
||||
</output_ports>
|
||||
</model>
|
||||
<model name="frac_lut4">
|
||||
<input_ports>
|
||||
<port name="in"/>
|
||||
</input_ports>
|
||||
<output_ports>
|
||||
<port name="lut2_out"/>
|
||||
<port name="lut3_out"/>
|
||||
<port name="lut4_out"/>
|
||||
</output_ports>
|
||||
</model>
|
||||
<model name="carry_follower_physical">
|
||||
<input_ports>
|
||||
<port name="a" combinational_sink_ports="cout"/>
|
||||
<port name="b" combinational_sink_ports="cout"/>
|
||||
<port name="cin" combinational_sink_ports="cout"/>
|
||||
</input_ports>
|
||||
<output_ports>
|
||||
<port name="cout"/>
|
||||
</output_ports>
|
||||
</model>
|
||||
<!-- A virtual model for scan-chain flip-flop to be used in the physical mode of FF -->
|
||||
<model name="scff">
|
||||
<input_ports>
|
||||
<port name="D" clock="clk"/>
|
||||
<port name="DI" clock="clk"/>
|
||||
<port name="reset" clock="clk"/>
|
||||
<port name="clk" is_clock="1"/>
|
||||
</input_ports>
|
||||
<output_ports>
|
||||
<port name="Q" clock="clk"/>
|
||||
</output_ports>
|
||||
</model>
|
||||
</models>
|
||||
<tiles>
|
||||
<!-- Do NOT add clock pins to I/O here!!! VPR does not build clock network in the way that OpenFPGA can support
|
||||
If you need to register the I/O, define clocks in the circuit models
|
||||
These clocks can be handled in back-end
|
||||
-->
|
||||
<!-- Top-side has 1 I/O per tile -->
|
||||
<tile name="io_top" area="0">
|
||||
<sub_tile name="io_top" capacity="1">
|
||||
<equivalent_sites>
|
||||
<site pb_type="io"/>
|
||||
</equivalent_sites>
|
||||
<input name="outpad" num_pins="1"/>
|
||||
<output name="inpad" num_pins="1"/>
|
||||
<fc in_type="frac" in_val="0.15" out_type="frac" out_val="0.10"/>
|
||||
<pinlocations pattern="custom">
|
||||
<loc side="bottom">io_top.outpad io_top.inpad</loc>
|
||||
</pinlocations>
|
||||
</sub_tile>
|
||||
</tile>
|
||||
<!-- Right-side has 1 I/O per tile -->
|
||||
<tile name="io_right" area="0">
|
||||
<sub_tile name="io_right" capacity="1">
|
||||
<equivalent_sites>
|
||||
<site pb_type="io"/>
|
||||
</equivalent_sites>
|
||||
<input name="outpad" num_pins="1"/>
|
||||
<output name="inpad" num_pins="1"/>
|
||||
<fc in_type="frac" in_val="0.15" out_type="frac" out_val="0.10"/>
|
||||
<pinlocations pattern="custom">
|
||||
<loc side="left">io_right.outpad io_right.inpad</loc>
|
||||
</pinlocations>
|
||||
</sub_tile>
|
||||
</tile>
|
||||
<!-- Bottom-side has 9 I/O per tile -->
|
||||
<tile name="io_bottom" area="0">
|
||||
<sub_tile name="io_bottom" capacity="9">
|
||||
<equivalent_sites>
|
||||
<site pb_type="io"/>
|
||||
</equivalent_sites>
|
||||
<input name="outpad" num_pins="1"/>
|
||||
<output name="inpad" num_pins="1"/>
|
||||
<fc in_type="frac" in_val="0.15" out_type="frac" out_val="0.10"/>
|
||||
<pinlocations pattern="custom">
|
||||
<loc side="top">io_bottom.outpad io_bottom.inpad</loc>
|
||||
</pinlocations>
|
||||
</sub_tile>
|
||||
</tile>
|
||||
<!-- Left-side has 1 I/O per tile -->
|
||||
<tile name="io_left" area="0">
|
||||
<sub_tile name="io_left" capacity="1">
|
||||
<equivalent_sites>
|
||||
<site pb_type="io"/>
|
||||
</equivalent_sites>
|
||||
<input name="outpad" num_pins="1"/>
|
||||
<output name="inpad" num_pins="1"/>
|
||||
<fc in_type="frac" in_val="0.15" out_type="frac" out_val="0.10"/>
|
||||
<pinlocations pattern="custom">
|
||||
<loc side="right">io_left.outpad io_left.inpad</loc>
|
||||
</pinlocations>
|
||||
</sub_tile>
|
||||
</tile>
|
||||
<!-- CLB has most pins on the top and right sides -->
|
||||
<tile name="clb" area="53894">
|
||||
<sub_tile name="clb">
|
||||
<equivalent_sites>
|
||||
<site pb_type="clb"/>
|
||||
</equivalent_sites>
|
||||
<input name="I0" num_pins="2" equivalent="full"/>
|
||||
<input name="I0i" num_pins="2" equivalent="none"/>
|
||||
<input name="I1" num_pins="2" equivalent="full"/>
|
||||
<input name="I1i" num_pins="2" equivalent="none"/>
|
||||
<input name="I2" num_pins="2" equivalent="full"/>
|
||||
<input name="I2i" num_pins="2" equivalent="none"/>
|
||||
<input name="I3" num_pins="2" equivalent="full"/>
|
||||
<input name="I3i" num_pins="2" equivalent="none"/>
|
||||
<input name="I4" num_pins="2" equivalent="full"/>
|
||||
<input name="I4i" num_pins="2" equivalent="none"/>
|
||||
<input name="I5" num_pins="2" equivalent="full"/>
|
||||
<input name="I5i" num_pins="2" equivalent="none"/>
|
||||
<input name="I6" num_pins="2" equivalent="full"/>
|
||||
<input name="I6i" num_pins="2" equivalent="none"/>
|
||||
<input name="I7" num_pins="2" equivalent="full"/>
|
||||
<input name="I7i" num_pins="2" equivalent="none"/>
|
||||
<input name="reg_in" num_pins="1"/>
|
||||
<input name="sc_in" num_pins="1"/>
|
||||
<input name="cin" num_pins="1"/>
|
||||
<input name="reset" num_pins="1" is_non_clock_global="true"/>
|
||||
<output name="O" num_pins="16" equivalent="none"/>
|
||||
<output name="reg_out" num_pins="1"/>
|
||||
<output name="sc_out" num_pins="1"/>
|
||||
<output name="cout" num_pins="1"/>
|
||||
<clock name="clk" num_pins="1"/>
|
||||
<fc in_type="frac" in_val="0.15" out_type="frac" out_val="0.10">
|
||||
<fc_override port_name="reg_in" fc_type="frac" fc_val="0"/>
|
||||
<fc_override port_name="reg_out" fc_type="frac" fc_val="0"/>
|
||||
<fc_override port_name="sc_in" fc_type="frac" fc_val="0"/>
|
||||
<fc_override port_name="sc_out" fc_type="frac" fc_val="0"/>
|
||||
<fc_override port_name="cin" fc_type="frac" fc_val="0"/>
|
||||
<fc_override port_name="cout" fc_type="frac" fc_val="0"/>
|
||||
<fc_override port_name="clk" fc_type="frac" fc_val="0"/>
|
||||
<fc_override port_name="reset" fc_type="frac" fc_val="0"/>
|
||||
</fc>
|
||||
<!--pinlocations pattern="spread"/-->
|
||||
<pinlocations pattern="custom">
|
||||
<loc side="left">clb.clk clb.reset</loc>
|
||||
<loc side="top">clb.reg_in clb.sc_in clb.cin clb.O[7:0] clb.I0 clb.I0i clb.I1 clb.I1i clb.I2 clb.I2i clb.I3 clb.I3i</loc>
|
||||
<loc side="right">clb.O[15:8] clb.I4 clb.I4i clb.I5 clb.I5i clb.I6 clb.I6i clb.I7 clb.I7i</loc>
|
||||
<loc side="bottom">clb.reg_out clb.sc_out clb.cout</loc>
|
||||
</pinlocations>
|
||||
</sub_tile>
|
||||
</tile>
|
||||
<tile name="mult_8" height="2" area="396000">
|
||||
<sub_tile name="mult_8">
|
||||
<equivalent_sites>
|
||||
<site pb_type="mult_8" pin_mapping="direct"/>
|
||||
</equivalent_sites>
|
||||
<input name="a" num_pins="8"/>
|
||||
<input name="b" num_pins="8"/>
|
||||
<output name="out" num_pins="16"/>
|
||||
<fc in_type="frac" in_val="0.15" out_type="frac" out_val="0.10"/>
|
||||
<!-- Highly recommand to customize pin location when direct connection is used!!! -->
|
||||
<!--pinlocations pattern="spread"/-->
|
||||
<pinlocations pattern="custom">
|
||||
<loc side="left"/>
|
||||
<loc side="top"/>
|
||||
<loc side="right" yoffset="0">mult_8.a[0:2] mult_8.b[0:2] mult_8.out[0:5]</loc>
|
||||
<loc side="right" yoffset="1">mult_8.a[3:5] mult_8.b[3:5] mult_8.out[6:10]</loc>
|
||||
<loc side="bottom">mult_8.a[6:7] mult_8.b[6:7] mult_8.out[11:15]</loc>
|
||||
</pinlocations>
|
||||
</sub_tile>
|
||||
</tile>
|
||||
</tiles>
|
||||
<!-- ODIN II specific config ends -->
|
||||
<!-- Physical descriptions begin -->
|
||||
<layout tileable="true" shrink_boundary="true">
|
||||
<auto_layout aspect_ratio="1.0">
|
||||
<!--Perimeter of 'io' blocks with 'EMPTY' blocks at corners-->
|
||||
<row type="io_top" starty="H-1" priority="100"/>
|
||||
<row type="io_bottom" starty="0" priority="100"/>
|
||||
<col type="io_left" startx="0" priority="100"/>
|
||||
<col type="io_right" startx="W-1" priority="100"/>
|
||||
<corners type="EMPTY" priority="101"/>
|
||||
<!--Fill with 'clb'-->
|
||||
<fill type="clb" priority="10"/>
|
||||
<!--Column of 'mult_8' with 'EMPTY' blocks wherever a 'mult_8' does not fit. Vertical offset by 1 for perimeter.-->
|
||||
<col type="mult_8" startx="2" starty="1" repeatx="8" priority="20"/>
|
||||
</auto_layout>
|
||||
<fixed_layout name="3x2" width="5" height="4">
|
||||
<!--Perimeter of 'io' blocks with 'EMPTY' blocks at corners-->
|
||||
<row type="io_top" starty="H-1" priority="100"/>
|
||||
<row type="io_bottom" starty="0" priority="100"/>
|
||||
<col type="io_left" startx="0" priority="100"/>
|
||||
<col type="io_right" startx="W-1" priority="100"/>
|
||||
<corners type="EMPTY" priority="101"/>
|
||||
<!--Fill with 'clb'-->
|
||||
<fill type="clb" priority="10"/>
|
||||
<!--Column of 'mult_8' with 'EMPTY' blocks wherever a 'mult_8' does not fit. Vertical offset by 1 for perimeter.-->
|
||||
<col type="mult_8" startx="2" starty="1" repeatx="8" priority="20"/>
|
||||
</fixed_layout>
|
||||
<fixed_layout name="3x2L" width="5" height="4">
|
||||
<!--Perimeter of 'io' blocks with 'EMPTY' blocks at corners-->
|
||||
<row type="io_top" starty="H-1" priority="100"/>
|
||||
<row type="io_bottom" starty="0" priority="100"/>
|
||||
<col type="io_left" startx="0" priority="100"/>
|
||||
<col type="io_right" startx="W-1" priority="100"/>
|
||||
<!-- Empty top-left region -->
|
||||
<region type="EMPTY" startx="0" starty="2" endx="1" endy="3" priority="101"/>
|
||||
<corners type="EMPTY" priority="101"/>
|
||||
<!--Fill with 'clb'-->
|
||||
<fill type="clb" priority="10"/>
|
||||
<!--Column of 'mult_8' with 'EMPTY' blocks wherever a 'mult_8' does not fit. Vertical offset by 1 for perimeter.-->
|
||||
<col type="mult_8" startx="2" starty="1" repeatx="8" priority="20"/>
|
||||
</fixed_layout>
|
||||
<fixed_layout name="12x12" width="14" height="14">
|
||||
<!--Perimeter of 'io' blocks with 'EMPTY' blocks at corners-->
|
||||
<row type="io_top" starty="H-1" priority="100"/>
|
||||
<row type="io_bottom" starty="0" priority="100"/>
|
||||
<col type="io_left" startx="0" priority="100"/>
|
||||
<col type="io_right" startx="W-1" priority="100"/>
|
||||
<corners type="EMPTY" priority="101"/>
|
||||
<!--Fill with 'clb'-->
|
||||
<fill type="clb" priority="10"/>
|
||||
<!--Column of 'mult_8' with 'EMPTY' blocks wherever a 'mult_8' does not fit. Vertical offset by 1 for perimeter.-->
|
||||
<col type="mult_8" startx="2" starty="1" repeatx="8" priority="20"/>
|
||||
</fixed_layout>
|
||||
</layout>
|
||||
<device>
|
||||
<!-- VB & JL: Using Ian Kuon's transistor sizing and drive strength data for routing, at 40 nm. Ian used BPTM
|
||||
models. We are modifying the delay values however, to include metal C and R, which allows more architecture
|
||||
experimentation. We are also modifying the relative resistance of PMOS to be 1.8x that of NMOS
|
||||
(vs. Ian's 3x) as 1.8x lines up with Jeff G's data from a 45 nm process (and is more typical of
|
||||
45 nm in general). I'm upping the Rmin_nmos from Ian's just over 6k to nearly 9k, and dropping
|
||||
RminW_pmos from 18k to 16k to hit this 1.8x ratio, while keeping the delays of buffers approximately
|
||||
lined up with Stratix IV.
|
||||
We are using Jeff G.'s capacitance data for 45 nm (in tech/ptm_45nm).
|
||||
Jeff's tables list C in for transistors with widths in multiples of the minimum feature size (45 nm).
|
||||
The minimum contactable transistor is 2.5 * 45 nm, so I need to multiply drive strength sizes in this file
|
||||
by 2.5x when looking up in Jeff's tables.
|
||||
The delay values are lined up with Stratix IV, which has an architecture similar to this
|
||||
proposed FPGA, and which is also 40 nm
|
||||
C_ipin_cblock: input capacitance of a track buffer, which VPR assumes is a single-stage
|
||||
4x minimum drive strength buffer. -->
|
||||
<sizing R_minW_nmos="8926" R_minW_pmos="16067"/>
|
||||
<!-- The grid_logic_tile_area below will be used for all blocks that do not explicitly set their own (non-routing)
|
||||
area; set to 0 since we explicitly set the area of all blocks currently in this architecture file.
|
||||
-->
|
||||
<area grid_logic_tile_area="0"/>
|
||||
<chan_width_distr>
|
||||
<x distr="uniform" peak="1.000000"/>
|
||||
<y distr="uniform" peak="1.000000"/>
|
||||
</chan_width_distr>
|
||||
<switch_block type="wilton" fs="3" sub_type="subset" sub_fs="3"/>
|
||||
<connection_block input_switch_name="ipin_cblock"/>
|
||||
</device>
|
||||
<switchlist>
|
||||
<!-- VB: the mux_trans_size and buf_size data below is in minimum width transistor *areas*, assuming the purple
|
||||
book area formula. This means the mux transistors are about 5x minimum drive strength.
|
||||
We assume the first stage of the buffer is 3x min drive strength to be reasonable given the large
|
||||
mux transistors, and this gives a reasonable stage ratio of a bit over 5x to the second stage. We assume
|
||||
the n and p transistors in the first stage are equal-sized to lower the buffer trip point, since it's fed
|
||||
by a pass transistor mux. We can then reverse engineer the buffer second stage to hit the specified
|
||||
buf_size (really buffer area) - 16.2x minimum drive nmos and 1.8*16.2 = 29.2x minimum drive.
|
||||
I then took the data from Jeff G.'s PTM modeling of 45 nm to get the Cin (gate of first stage) and Cout
|
||||
(diff of second stage) listed below. Jeff's models are in tech/ptm_45nm, and are in min feature multiples.
|
||||
The minimum contactable transistor is 2.5 * 45 nm, so I need to multiply the drive strength sizes above by
|
||||
2.5x when looking up in Jeff's tables.
|
||||
Finally, we choose a switch delay (58 ps) that leads to length 4 wires having a delay equal to that of SIV of 126 ps.
|
||||
This also leads to the switch being 46% of the total wire delay, which is reasonable. -->
|
||||
<switch type="mux" name="L1_mux" R="551" Cin=".77e-15" Cout="4e-15" Tdel="58e-12" mux_trans_size="2.630740" buf_size="27.645901"/>
|
||||
<switch type="mux" name="L2_mux" R="551" Cin=".77e-15" Cout="4e-15" Tdel="58e-12" mux_trans_size="2.630740" buf_size="27.645901"/>
|
||||
<switch type="mux" name="L4_mux" R="551" Cin=".77e-15" Cout="4e-15" Tdel="58e-12" mux_trans_size="2.630740" buf_size="27.645901"/>
|
||||
<!--switch ipin_cblock resistance set to yeild for 4x minimum drive strength buffer-->
|
||||
<switch type="mux" name="ipin_cblock" R="2231.5" Cout="0." Cin="1.47e-15" Tdel="7.247000e-11" mux_trans_size="1.222260" buf_size="auto"/>
|
||||
</switchlist>
|
||||
<segmentlist>
|
||||
<!--- VB & JL: using ITRS metal stack data, 96 nm half pitch wires, which are intermediate metal width/space.
|
||||
With the 96 nm half pitch, such wires would take 60 um of height, vs. a 90 nm high (approximated as square) Stratix IV tile so this seems
|
||||
reasonable. Using a tile length of 90 nm, corresponding to the length of a Stratix IV tile if it were square. -->
|
||||
<!-- GIVE a specific name for the segment! OpenFPGA appreciate that! -->
|
||||
<segment name="L1" freq="0.10" length="1" type="unidir" Rmetal="101" Cmetal="22.5e-15">
|
||||
<mux name="L1_mux"/>
|
||||
<sb type="pattern">1 1</sb>
|
||||
<cb type="pattern">1</cb>
|
||||
</segment>
|
||||
<segment name="L2" freq="0.10" length="2" type="unidir" Rmetal="101" Cmetal="22.5e-15">
|
||||
<mux name="L2_mux"/>
|
||||
<sb type="pattern">1 1 1</sb>
|
||||
<cb type="pattern">1 1</cb>
|
||||
</segment>
|
||||
<segment name="L4" freq="0.80" length="4" type="unidir" Rmetal="101" Cmetal="22.5e-15">
|
||||
<mux name="L4_mux"/>
|
||||
<sb type="pattern">1 1 1 1 1</sb>
|
||||
<cb type="pattern">1 1 1 1</cb>
|
||||
</segment>
|
||||
</segmentlist>
|
||||
<directlist>
|
||||
<direct name="carry_chain" from_pin="clb.cout" to_pin="clb.cin" x_offset="0" y_offset="-1" z_offset="0"/>
|
||||
<direct name="shift_register" from_pin="clb.reg_out" to_pin="clb.reg_in" x_offset="0" y_offset="-1" z_offset="0"/>
|
||||
<direct name="scan_chain" from_pin="clb.sc_out" to_pin="clb.sc_in" x_offset="0" y_offset="-1" z_offset="0"/>
|
||||
</directlist>
|
||||
<complexblocklist>
|
||||
<!-- Define input pads begin -->
|
||||
<pb_type name="io">
|
||||
<input name="outpad" num_pins="1"/>
|
||||
<output name="inpad" num_pins="1"/>
|
||||
<!-- Do NOT add clock pins to I/O here!!! VPR does not build clock network in the way that OpenFPGA can support
|
||||
If you need to register the I/O, define clocks in the circuit models
|
||||
These clocks can be handled in back-end
|
||||
-->
|
||||
<!-- A mode denotes the physical implementation of an I/O
|
||||
This mode will be not packable but is mainly used for fabric verilog generation
|
||||
-->
|
||||
<mode name="physical" disable_packing="true">
|
||||
<pb_type name="iopad" blif_model=".subckt io" num_pb="1">
|
||||
<input name="outpad" num_pins="1"/>
|
||||
<output name="inpad" num_pins="1"/>
|
||||
</pb_type>
|
||||
<interconnect>
|
||||
<direct name="outpad" input="io.outpad" output="iopad.outpad">
|
||||
<delay_constant max="1.394e-11" in_port="io.outpad" out_port="iopad.outpad"/>
|
||||
</direct>
|
||||
<direct name="inpad" input="iopad.inpad" output="io.inpad">
|
||||
<delay_constant max="4.243e-11" in_port="iopad.inpad" out_port="io.inpad"/>
|
||||
</direct>
|
||||
</interconnect>
|
||||
</mode>
|
||||
<!-- IOs can operate as either inputs or outputs.
|
||||
Delays below come from Ian Kuon. They are small, so they should be interpreted as
|
||||
the delays to and from registers in the I/O (and generally I/Os are registered
|
||||
today and that is when you timing analyze them.
|
||||
-->
|
||||
<mode name="inpad">
|
||||
<pb_type name="inpad" blif_model=".input" num_pb="1">
|
||||
<output name="inpad" num_pins="1"/>
|
||||
</pb_type>
|
||||
<interconnect>
|
||||
<direct name="inpad" input="inpad.inpad" output="io.inpad">
|
||||
<delay_constant max="4.243e-11" in_port="inpad.inpad" out_port="io.inpad"/>
|
||||
</direct>
|
||||
</interconnect>
|
||||
</mode>
|
||||
<mode name="outpad">
|
||||
<pb_type name="outpad" blif_model=".output" num_pb="1">
|
||||
<input name="outpad" num_pins="1"/>
|
||||
</pb_type>
|
||||
<interconnect>
|
||||
<direct name="outpad" input="io.outpad" output="outpad.outpad">
|
||||
<delay_constant max="1.394e-11" in_port="io.outpad" out_port="outpad.outpad"/>
|
||||
</direct>
|
||||
</interconnect>
|
||||
</mode>
|
||||
<power method="ignore"/>
|
||||
</pb_type>
|
||||
<!-- Define I/O pads ends -->
|
||||
<!-- Define general purpose logic block (CLB) begin -->
|
||||
<!-- -Due to the absence of local routing,
|
||||
the 4 inputs of fracturable LUT4 are no longer equivalent,
|
||||
because the 4th input can not be switched when the dual-LUT3 modes are used.
|
||||
So pin equivalence should be applied to the first 3 inputs only
|
||||
-->
|
||||
<pb_type name="clb">
|
||||
<input name="I0" num_pins="2" equivalent="full"/>
|
||||
<input name="I0i" num_pins="2" equivalent="none"/>
|
||||
<input name="I1" num_pins="2" equivalent="full"/>
|
||||
<input name="I1i" num_pins="2" equivalent="none"/>
|
||||
<input name="I2" num_pins="2" equivalent="full"/>
|
||||
<input name="I2i" num_pins="2" equivalent="none"/>
|
||||
<input name="I3" num_pins="2" equivalent="full"/>
|
||||
<input name="I3i" num_pins="2" equivalent="none"/>
|
||||
<input name="I4" num_pins="2" equivalent="full"/>
|
||||
<input name="I4i" num_pins="2" equivalent="none"/>
|
||||
<input name="I5" num_pins="2" equivalent="full"/>
|
||||
<input name="I5i" num_pins="2" equivalent="none"/>
|
||||
<input name="I6" num_pins="2" equivalent="full"/>
|
||||
<input name="I6i" num_pins="2" equivalent="none"/>
|
||||
<input name="I7" num_pins="2" equivalent="full"/>
|
||||
<input name="I7i" num_pins="2" equivalent="none"/>
|
||||
<input name="reg_in" num_pins="1"/>
|
||||
<input name="sc_in" num_pins="1"/>
|
||||
<input name="cin" num_pins="1"/>
|
||||
<input name="reset" num_pins="1" is_non_clock_global="true"/>
|
||||
<output name="O" num_pins="16" equivalent="none"/>
|
||||
<output name="reg_out" num_pins="1"/>
|
||||
<output name="sc_out" num_pins="1"/>
|
||||
<output name="cout" num_pins="1"/>
|
||||
<clock name="clk" num_pins="1"/>
|
||||
<!-- Describe fracturable logic element.
|
||||
Each fracturable logic element has a 6-LUT that can alternatively operate as two 5-LUTs with shared inputs.
|
||||
The outputs of the fracturable logic element can be optionally registered
|
||||
-->
|
||||
<pb_type name="fle" num_pb="8">
|
||||
<input name="in" num_pins="4"/>
|
||||
<input name="reg_in" num_pins="1"/>
|
||||
<input name="sc_in" num_pins="1"/>
|
||||
<input name="cin" num_pins="1"/>
|
||||
<input name="reset" num_pins="1"/>
|
||||
<output name="out" num_pins="2"/>
|
||||
<output name="reg_out" num_pins="1"/>
|
||||
<output name="sc_out" num_pins="1"/>
|
||||
<output name="cout" num_pins="1"/>
|
||||
<clock name="clk" num_pins="1"/>
|
||||
<!-- Physical mode definition begin (physical implementation of the fle) -->
|
||||
<mode name="physical" disable_packing="true">
|
||||
<pb_type name="fabric" num_pb="1">
|
||||
<input name="in" num_pins="4"/>
|
||||
<input name="reg_in" num_pins="1"/>
|
||||
<input name="sc_in" num_pins="1"/>
|
||||
<input name="cin" num_pins="1"/>
|
||||
<input name="reset" num_pins="1"/>
|
||||
<output name="out" num_pins="2"/>
|
||||
<output name="reg_out" num_pins="1"/>
|
||||
<output name="sc_out" num_pins="1"/>
|
||||
<output name="cout" num_pins="1"/>
|
||||
<clock name="clk" num_pins="1"/>
|
||||
<pb_type name="frac_logic" num_pb="1">
|
||||
<input name="in" num_pins="4"/>
|
||||
<input name="cin" num_pins="1"/>
|
||||
<output name="out" num_pins="2"/>
|
||||
<output name="cout" num_pins="1"/>
|
||||
<!-- Define LUT -->
|
||||
<pb_type name="frac_lut4" blif_model=".subckt frac_lut4" num_pb="1">
|
||||
<input name="in" num_pins="4"/>
|
||||
<output name="lut2_out" num_pins="2"/>
|
||||
<output name="lut3_out" num_pins="2"/>
|
||||
<output name="lut4_out" num_pins="1"/>
|
||||
</pb_type>
|
||||
<pb_type name="carry_follower" blif_model=".subckt carry_follower_physical" num_pb="1">
|
||||
<input name="a" num_pins="1"/>
|
||||
<input name="b" num_pins="1"/>
|
||||
<input name="cin" num_pins="1"/>
|
||||
<output name="cout" num_pins="1"/>
|
||||
<delay_constant max="0.3e-9" in_port="carry_follower.a" out_port="carry_follower.cout"/>
|
||||
<delay_constant max="0.3e-9" in_port="carry_follower.b" out_port="carry_follower.cout"/>
|
||||
<delay_constant max="0.3e-9" in_port="carry_follower.cin" out_port="carry_follower.cout"/>
|
||||
</pb_type>
|
||||
<interconnect>
|
||||
<direct name="direct1" input="frac_logic.in[0:1]" output="frac_lut4.in[0:1]"/>
|
||||
<direct name="direct2" input="frac_logic.in[3:3]" output="frac_lut4.in[3:3]"/>
|
||||
<direct name="direct3" input="frac_logic.cin" output="carry_follower.b"/>
|
||||
<direct name="direct4" input="frac_lut4.lut2_out[1:1]" output="carry_follower.a"/>
|
||||
<direct name="direct5" input="frac_lut4.lut2_out[0:0]" output="carry_follower.cin"/>
|
||||
<direct name="direct6" input="carry_follower.cout" output="frac_logic.cout"/>
|
||||
<direct name="direct7" input="frac_lut4.lut3_out[1]" output="frac_logic.out[1]"/>
|
||||
<!-- Xifan Tang: I use out[0] because the output of lut6 in lut6 mode is wired to the out[0] -->
|
||||
<mux name="mux1" input="frac_lut4.lut4_out frac_lut4.lut3_out[0]" output="frac_logic.out[0]"/>
|
||||
<mux name="mux2" input="frac_logic.cin frac_logic.in[2:2]" output="frac_lut4.in[2:2]"/>
|
||||
</interconnect>
|
||||
</pb_type>
|
||||
<!-- Define flip-flop with scan-chain capability, DI is the scan-chain data input -->
|
||||
<pb_type name="ff" blif_model=".subckt scff" num_pb="2">
|
||||
<input name="D" num_pins="1"/>
|
||||
<input name="DI" num_pins="1"/>
|
||||
<input name="reset" num_pins="1"/>
|
||||
<output name="Q" num_pins="1"/>
|
||||
<clock name="clk" num_pins="1"/>
|
||||
<T_setup value="66e-12" port="ff.D" clock="clk"/>
|
||||
<T_setup value="66e-12" port="ff.DI" clock="clk"/>
|
||||
<T_setup value="66e-12" port="ff.reset" clock="clk"/>
|
||||
<T_clock_to_Q max="124e-12" port="ff.Q" clock="clk"/>
|
||||
</pb_type>
|
||||
<interconnect>
|
||||
<direct name="direct1" input="fabric.in" output="frac_logic.in"/>
|
||||
<direct name="direct2" input="fabric.cin" output="frac_logic.cin"/>
|
||||
<direct name="direct3" input="fabric.sc_in" output="ff[0].DI"/>
|
||||
<direct name="direct4" input="ff[0].Q" output="ff[1].DI"/>
|
||||
<direct name="direct5" input="ff[1].Q" output="fabric.sc_out"/>
|
||||
<direct name="direct6" input="ff[1].Q" output="fabric.reg_out"/>
|
||||
<direct name="direct7" input="frac_logic.cout" output="fabric.cout"/>
|
||||
<complete name="complete1" input="fabric.clk" output="ff[1:0].clk"/>
|
||||
<complete name="complete2" input="fabric.reset" output="ff[1:0].reset"/>
|
||||
<mux name="mux1" input="frac_logic.out[0:0] fabric.reg_in" output="ff[0:0].D">
|
||||
<delay_constant max="25e-12" in_port="frac_logic.out[0:0]" out_port="ff[0:0].D"/>
|
||||
<delay_constant max="45e-12" in_port="fabric.reg_in" out_port="ff[0:0].D"/>
|
||||
</mux>
|
||||
<mux name="mux2" input="frac_logic.out[1:1] ff[0:0].Q" output="ff[1:1].D">
|
||||
<delay_constant max="25e-12" in_port="frac_logic.out[1:1]" out_port="ff[1:1].D"/>
|
||||
<delay_constant max="45e-12" in_port="ff[0:0].Q" out_port="ff[1:1].D"/>
|
||||
</mux>
|
||||
<mux name="mux3" input="ff[0].Q frac_logic.out[0]" output="fabric.out[0]">
|
||||
<!-- LUT to output is faster than FF to output on a Stratix IV -->
|
||||
<delay_constant max="25e-12" in_port="frac_logic.out[0]" out_port="fabric.out[0]"/>
|
||||
<delay_constant max="45e-12" in_port="ff[0].Q" out_port="fabric.out[0]"/>
|
||||
</mux>
|
||||
<mux name="mux4" input="ff[1].Q frac_logic.out[1]" output="fabric.out[1]">
|
||||
<!-- LUT to output is faster than FF to output on a Stratix IV -->
|
||||
<delay_constant max="25e-12" in_port="frac_logic.out[1]" out_port="fabric.out[1]"/>
|
||||
<delay_constant max="45e-12" in_port="ff[1].Q" out_port="fabric.out[1]"/>
|
||||
</mux>
|
||||
</interconnect>
|
||||
</pb_type>
|
||||
<interconnect>
|
||||
<direct name="direct1" input="fle.in" output="fabric.in"/>
|
||||
<direct name="direct2" input="fle.reg_in" output="fabric.reg_in"/>
|
||||
<direct name="direct3" input="fle.sc_in" output="fabric.sc_in"/>
|
||||
<direct name="direct4" input="fle.cin" output="fabric.cin"/>
|
||||
<direct name="direct5" input="fabric.out" output="fle.out"/>
|
||||
<direct name="direct6" input="fabric.reg_out" output="fle.reg_out"/>
|
||||
<direct name="direct7" input="fabric.sc_out" output="fle.sc_out"/>
|
||||
<direct name="direct8" input="fabric.cout" output="fle.cout"/>
|
||||
<direct name="direct9" input="fle.clk" output="fabric.clk"/>
|
||||
<direct name="direct10" input="fle.reset" output="fabric.reset"/>
|
||||
</interconnect>
|
||||
</mode>
|
||||
<!-- Physical mode definition end (physical implementation of the fle) -->
|
||||
<!-- Arithmetic mode definition begin -->
|
||||
<mode name="arithmetic">
|
||||
<pb_type name="soft_adder" num_pb="1">
|
||||
<input name="in" num_pins="4"/>
|
||||
<input name="cin" num_pins="1"/>
|
||||
<output name="sumout" num_pins="1"/>
|
||||
<output name="cout" num_pins="1"/>
|
||||
<!-- Define special LUT marco to be used as adder -->
|
||||
<pb_type name="adder_lut4" blif_model=".subckt adder_lut4" num_pb="1">
|
||||
<input name="in" num_pins="4"/>
|
||||
<output name="lut2_out" num_pins="2"/>
|
||||
<output name="lut4_out" num_pins="1"/>
|
||||
<delay_constant max="0.3e-9" in_port="adder_lut4.in" out_port="adder_lut4.lut2_out"/>
|
||||
<delay_constant max="0.3e-9" in_port="adder_lut4.in" out_port="adder_lut4.lut4_out"/>
|
||||
</pb_type>
|
||||
<pb_type name="carry_follower" blif_model=".subckt carry_follower" num_pb="1">
|
||||
<input name="a" num_pins="1"/>
|
||||
<input name="b" num_pins="1"/>
|
||||
<input name="cin" num_pins="1"/>
|
||||
<output name="cout" num_pins="1"/>
|
||||
<delay_constant max="0.3e-9" in_port="carry_follower.a" out_port="carry_follower.cout"/>
|
||||
<delay_constant max="0.3e-9" in_port="carry_follower.b" out_port="carry_follower.cout"/>
|
||||
<delay_constant max="0.3e-9" in_port="carry_follower.cin" out_port="carry_follower.cout"/>
|
||||
</pb_type>
|
||||
<interconnect>
|
||||
<direct name="direct1" input="soft_adder.in[0:1]" output="adder_lut4.in[0:1]"/>
|
||||
<direct name="direct2" input="soft_adder.in[3:3]" output="adder_lut4.in[3:3]"/>
|
||||
<direct name="direct3" input="soft_adder.cin" output="carry_follower.b">
|
||||
<!-- Pack pattern to build an adder chain connection considered by packer -->
|
||||
<pack_pattern name="chain" in_port="soft_adder.cin" out_port="carry_follower.b"/>
|
||||
</direct>
|
||||
<direct name="direct4" input="adder_lut4.lut2_out[1:1]" output="carry_follower.a">
|
||||
<!-- Pack pattern to pair adder_lut4 and carry_follower into a molecule
|
||||
considered by packer -->
|
||||
<pack_pattern name="lut_follower" in_port="adder_lut4.lut2_out[1:1]" out_port="carry_follower.a"/>
|
||||
</direct>
|
||||
<direct name="direct5" input="adder_lut4.lut2_out[0:0]" output="carry_follower.cin">
|
||||
</direct>
|
||||
<direct name="direct6" input="carry_follower.cout" output="soft_adder.cout">
|
||||
<!-- Pack pattern to build an adder chain connection considered by packer -->
|
||||
<pack_pattern name="chain" in_port="carry_follower.cout" out_port="soft_adder.cout"/>
|
||||
</direct>
|
||||
<direct name="direct7" input="adder_lut4.lut4_out" output="soft_adder.sumout[0:0]">
|
||||
</direct>
|
||||
<mux name="mux1" input="soft_adder.cin soft_adder.in[2:2]" output="adder_lut4.in[2:2]">
|
||||
</mux>
|
||||
</interconnect>
|
||||
</pb_type>
|
||||
<interconnect>
|
||||
<direct name="direct1" input="fle.in" output="soft_adder.in"/>
|
||||
<direct name="direct2" input="fle.cin" output="soft_adder.cin">
|
||||
<!-- Pack pattern to build an adder chain connection considered by packer -->
|
||||
<pack_pattern name="chain" in_port="fle.cin" out_port="soft_adder.cin"/>
|
||||
</direct>
|
||||
<direct name="direct3" input="soft_adder.sumout" output="fle.out[0:0]"/>
|
||||
<direct name="direct4" input="soft_adder.cout" output="fle.cout">
|
||||
<!-- Pack pattern to build an adder chain connection considered by packer -->
|
||||
<pack_pattern name="chain" in_port="soft_adder.cout" out_port="fle.cout"/>
|
||||
</direct>
|
||||
</interconnect>
|
||||
</mode>
|
||||
<!-- Arithmetic mode definition end -->
|
||||
<!-- Dual 3-LUT mode definition begin -->
|
||||
<mode name="n2_lut3">
|
||||
<pb_type name="lut3inter" num_pb="1">
|
||||
<input name="in" num_pins="3"/>
|
||||
<output name="out" num_pins="2"/>
|
||||
<clock name="clk" num_pins="1"/>
|
||||
<pb_type name="ble3" num_pb="2">
|
||||
<input name="in" num_pins="3"/>
|
||||
<output name="out" num_pins="1"/>
|
||||
<clock name="clk" num_pins="1"/>
|
||||
<!-- Define the LUT -->
|
||||
<pb_type name="lut3" blif_model=".names" num_pb="1" class="lut">
|
||||
<input name="in" num_pins="3" port_class="lut_in"/>
|
||||
<output name="out" num_pins="1" port_class="lut_out"/>
|
||||
<!-- LUT timing using delay matrix -->
|
||||
<!-- These are the physical delay inputs on a Stratix IV LUT but because VPR cannot do LUT rebalancing,
|
||||
we instead take the average of these numbers to get more stable results
|
||||
82e-12
|
||||
173e-12
|
||||
261e-12
|
||||
263e-12
|
||||
398e-12
|
||||
-->
|
||||
<delay_matrix type="max" in_port="lut3.in" out_port="lut3.out">
|
||||
235e-12
|
||||
235e-12
|
||||
235e-12
|
||||
</delay_matrix>
|
||||
</pb_type>
|
||||
<!-- Define the flip-flop -->
|
||||
<pb_type name="ff" blif_model=".latch" num_pb="1" class="flipflop">
|
||||
<input name="D" num_pins="1" port_class="D"/>
|
||||
<output name="Q" num_pins="1" port_class="Q"/>
|
||||
<clock name="clk" num_pins="1" port_class="clock"/>
|
||||
<T_setup value="66e-12" port="ff.D" clock="clk"/>
|
||||
<T_clock_to_Q max="124e-12" port="ff.Q" clock="clk"/>
|
||||
</pb_type>
|
||||
<interconnect>
|
||||
<direct name="direct1" input="ble3.in[2:0]" output="lut3[0:0].in[2:0]"/>
|
||||
<direct name="direct2" input="lut3[0:0].out" output="ff[0:0].D">
|
||||
<!-- Advanced user option that tells CAD tool to find LUT+FF pairs in netlist -->
|
||||
<pack_pattern name="ble3" in_port="lut3[0:0].out" out_port="ff[0:0].D"/>
|
||||
</direct>
|
||||
<direct name="direct3" input="ble3.clk" output="ff[0:0].clk"/>
|
||||
<mux name="mux1" input="ff[0:0].Q lut3.out[0:0]" output="ble3.out[0:0]">
|
||||
<!-- LUT to output is faster than FF to output on a Stratix IV -->
|
||||
<delay_constant max="25e-12" in_port="lut3.out[0:0]" out_port="ble3.out[0:0]"/>
|
||||
<delay_constant max="45e-12" in_port="ff[0:0].Q" out_port="ble3.out[0:0]"/>
|
||||
</mux>
|
||||
</interconnect>
|
||||
</pb_type>
|
||||
<interconnect>
|
||||
<direct name="direct1" input="lut3inter.in" output="ble3[0:0].in"/>
|
||||
<direct name="direct2" input="lut3inter.in" output="ble3[1:1].in"/>
|
||||
<direct name="direct3" input="ble3[1:0].out" output="lut3inter.out"/>
|
||||
<complete name="complete1" input="lut3inter.clk" output="ble3[1:0].clk"/>
|
||||
</interconnect>
|
||||
</pb_type>
|
||||
<interconnect>
|
||||
<direct name="direct1" input="fle.in[2:0]" output="lut3inter.in"/>
|
||||
<direct name="direct2" input="lut3inter.out" output="fle.out"/>
|
||||
<direct name="direct3" input="fle.clk" output="lut3inter.clk"/>
|
||||
</interconnect>
|
||||
</mode>
|
||||
<!-- Dual 3-LUT mode definition end -->
|
||||
<!-- 4-LUT mode definition begin -->
|
||||
<mode name="n1_lut4">
|
||||
<!-- Define 4-LUT mode -->
|
||||
<pb_type name="ble4" num_pb="1">
|
||||
<input name="in" num_pins="4"/>
|
||||
<output name="out" num_pins="1"/>
|
||||
<clock name="clk" num_pins="1"/>
|
||||
<!-- Define LUT -->
|
||||
<pb_type name="lut4" blif_model=".names" num_pb="1" class="lut">
|
||||
<input name="in" num_pins="4" port_class="lut_in"/>
|
||||
<output name="out" num_pins="1" port_class="lut_out"/>
|
||||
<!-- LUT timing using delay matrix -->
|
||||
<!-- These are the physical delay inputs on a Stratix IV LUT but because VPR cannot do LUT rebalancing,
|
||||
we instead take the average of these numbers to get more stable results
|
||||
82e-12
|
||||
173e-12
|
||||
261e-12
|
||||
263e-12
|
||||
398e-12
|
||||
397e-12
|
||||
-->
|
||||
<delay_matrix type="max" in_port="lut4.in" out_port="lut4.out">
|
||||
261e-12
|
||||
261e-12
|
||||
261e-12
|
||||
261e-12
|
||||
</delay_matrix>
|
||||
</pb_type>
|
||||
<!-- Define flip-flop -->
|
||||
<pb_type name="ff" blif_model=".latch" num_pb="1" class="flipflop">
|
||||
<input name="D" num_pins="1" port_class="D"/>
|
||||
<output name="Q" num_pins="1" port_class="Q"/>
|
||||
<clock name="clk" num_pins="1" port_class="clock"/>
|
||||
<T_setup value="66e-12" port="ff.D" clock="clk"/>
|
||||
<T_clock_to_Q max="124e-12" port="ff.Q" clock="clk"/>
|
||||
</pb_type>
|
||||
<interconnect>
|
||||
<direct name="direct1" input="ble4.in" output="lut4[0:0].in"/>
|
||||
<direct name="direct2" input="lut4.out" output="ff.D">
|
||||
<!-- Advanced user option that tells CAD tool to find LUT+FF pairs in netlist -->
|
||||
<pack_pattern name="ble4" in_port="lut4.out" out_port="ff.D"/>
|
||||
</direct>
|
||||
<direct name="direct3" input="ble4.clk" output="ff.clk"/>
|
||||
<mux name="mux1" input="ff.Q lut4.out" output="ble4.out">
|
||||
<!-- LUT to output is faster than FF to output on a Stratix IV -->
|
||||
<delay_constant max="25e-12" in_port="lut4.out" out_port="ble4.out"/>
|
||||
<delay_constant max="45e-12" in_port="ff.Q" out_port="ble4.out"/>
|
||||
</mux>
|
||||
</interconnect>
|
||||
</pb_type>
|
||||
<interconnect>
|
||||
<direct name="direct1" input="fle.in" output="ble4.in"/>
|
||||
<direct name="direct2" input="ble4.out" output="fle.out[0:0]"/>
|
||||
<direct name="direct3" input="fle.clk" output="ble4.clk"/>
|
||||
</interconnect>
|
||||
</mode>
|
||||
<!-- 4-LUT mode definition end -->
|
||||
<!-- Define shift register begin -->
|
||||
<mode name="shift_register">
|
||||
<pb_type name="shift_reg" num_pb="1">
|
||||
<input name="reg_in" num_pins="1"/>
|
||||
<output name="ff_out" num_pins="2"/>
|
||||
<output name="reg_out" num_pins="1"/>
|
||||
<clock name="clk" num_pins="1"/>
|
||||
<pb_type name="ff" blif_model=".latch" num_pb="2" class="flipflop">
|
||||
<input name="D" num_pins="1" port_class="D"/>
|
||||
<output name="Q" num_pins="1" port_class="Q"/>
|
||||
<clock name="clk" num_pins="1" port_class="clock"/>
|
||||
<T_setup value="66e-12" port="ff.D" clock="clk"/>
|
||||
<T_clock_to_Q max="124e-12" port="ff.Q" clock="clk"/>
|
||||
</pb_type>
|
||||
<interconnect>
|
||||
<direct name="direct1" input="shift_reg.reg_in" output="ff[0].D"/>
|
||||
<direct name="direct2" input="ff[0].Q" output="ff[1].D"/>
|
||||
<direct name="direct3" input="ff[1].Q" output="shift_reg.reg_out"/>
|
||||
<direct name="direct4" input="ff[0].Q" output="shift_reg.ff_out[0:0]"/>
|
||||
<direct name="direct5" input="ff[1].Q" output="shift_reg.ff_out[1:1]"/>
|
||||
<complete name="complete1" input="shift_reg.clk" output="ff.clk"/>
|
||||
</interconnect>
|
||||
</pb_type>
|
||||
<interconnect>
|
||||
<direct name="direct1" input="fle.reg_in" output="shift_reg.reg_in"/>
|
||||
<direct name="direct2" input="shift_reg.reg_out" output="fle.reg_out"/>
|
||||
<direct name="direct3" input="shift_reg.ff_out" output="fle.out"/>
|
||||
<direct name="direct4" input="fle.clk" output="shift_reg.clk"/>
|
||||
</interconnect>
|
||||
</mode>
|
||||
<!-- Define shift register end -->
|
||||
</pb_type>
|
||||
<interconnect>
|
||||
<!-- We use direct connections to reduce the area to the most
|
||||
The global local routing is going to compensate the loss in routability
|
||||
-->
|
||||
<!-- FIXME: The implicit port definition results in I0[0] connected to
|
||||
in[2]. Such twisted connection is not expected.
|
||||
I[0] should be connected to in[0]
|
||||
-->
|
||||
<direct name="direct_fle0" input="clb.I0[0:1]" output="fle[0:0].in[0:1]">
|
||||
<!-- TODO: Timing should be backannotated from post-PnR results -->
|
||||
</direct>
|
||||
<direct name="direct_fle0i" input="clb.I0i[0:1]" output="fle[0:0].in[2:3]">
|
||||
<!-- TODO: Timing should be backannotated from post-PnR results -->
|
||||
</direct>
|
||||
<direct name="direct_fle1" input="clb.I1[0:1]" output="fle[1:1].in[0:1]">
|
||||
<!-- TODO: Timing should be backannotated from post-PnR results -->
|
||||
</direct>
|
||||
<direct name="direct_fle1i" input="clb.I1i[0:1]" output="fle[1:1].in[2:3]">
|
||||
<!-- TODO: Timing should be backannotated from post-PnR results -->
|
||||
</direct>
|
||||
<direct name="direct_fle2" input="clb.I2[0:1]" output="fle[2:2].in[0:1]">
|
||||
<!-- TODO: Timing should be backannotated from post-PnR results -->
|
||||
</direct>
|
||||
<direct name="direct_fle2i" input="clb.I2i[0:1]" output="fle[2:2].in[2:3]">
|
||||
<!-- TODO: Timing should be backannotated from post-PnR results -->
|
||||
</direct>
|
||||
<direct name="direct_fle3" input="clb.I3[0:1]" output="fle[3:3].in[0:1]">
|
||||
<!-- TODO: Timing should be backannotated from post-PnR results -->
|
||||
</direct>
|
||||
<direct name="direct_fle3i" input="clb.I3i[0:1]" output="fle[3:3].in[2:3]">
|
||||
<!-- TODO: Timing should be backannotated from post-PnR results -->
|
||||
</direct>
|
||||
<direct name="direct_fle4" input="clb.I4[0:1]" output="fle[4:4].in[0:1]">
|
||||
<!-- TODO: Timing should be backannotated from post-PnR results -->
|
||||
</direct>
|
||||
<direct name="direct_fle4i" input="clb.I4i[0:1]" output="fle[4:4].in[2:3]">
|
||||
<!-- TODO: Timing should be backannotated from post-PnR results -->
|
||||
</direct>
|
||||
<direct name="direct_fle5" input="clb.I5[0:1]" output="fle[5:5].in[0:1]">
|
||||
<!-- TODO: Timing should be backannotated from post-PnR results -->
|
||||
</direct>
|
||||
<direct name="direct_fle5i" input="clb.I5i[0:1]" output="fle[5:5].in[2:3]">
|
||||
<!-- TODO: Timing should be backannotated from post-PnR results -->
|
||||
</direct>
|
||||
<direct name="direct_fle6" input="clb.I6[0:1]" output="fle[6:6].in[0:1]">
|
||||
<!-- TODO: Timing should be backannotated from post-PnR results -->
|
||||
</direct>
|
||||
<direct name="direct_fle6i" input="clb.I6i[0:1]" output="fle[6:6].in[2:3]">
|
||||
<!-- TODO: Timing should be backannotated from post-PnR results -->
|
||||
</direct>
|
||||
<direct name="direct_fle7" input="clb.I7[0:1]" output="fle[7:7].in[0:1]">
|
||||
<!-- TODO: Timing should be backannotated from post-PnR results -->
|
||||
</direct>
|
||||
<direct name="direct_fle7i" input="clb.I7i[0:1]" output="fle[7:7].in[2:3]">
|
||||
<!-- TODO: Timing should be backannotated from post-PnR results -->
|
||||
</direct>
|
||||
<complete name="clks" input="clb.clk" output="fle[7:0].clk">
|
||||
</complete>
|
||||
<complete name="resets" input="clb.reset" output="fle[7:0].reset">
|
||||
</complete>
|
||||
<!-- This way of specifying direct connection to clb outputs is important because this architecture uses automatic spreading of opins.
|
||||
By grouping to output pins in this fashion, if a logic block is completely filled by 6-LUTs,
|
||||
then the outputs those 6-LUTs take get evenly distributed across all four sides of the CLB instead of clumped on two sides (which is what happens with a more
|
||||
naive specification).
|
||||
-->
|
||||
<direct name="clbouts1" input="fle[3:0].out[0:1]" output="clb.O[7:0]"/>
|
||||
<direct name="clbouts2" input="fle[7:4].out[0:1]" output="clb.O[15:8]"/>
|
||||
<!-- Shift register chain links -->
|
||||
<direct name="shift_register_in" input="clb.reg_in" output="fle[0:0].reg_in">
|
||||
<!-- Put all inter-block carry chain delay on this one edge -->
|
||||
<delay_constant max="0.16e-9" in_port="clb.reg_in" out_port="fle[0:0].reg_in"/>
|
||||
<!--pack_pattern name="chain" in_port="clb.reg_in" out_port="fle[0:0].reg_in"/-->
|
||||
</direct>
|
||||
<direct name="shift_register_out" input="fle[7:7].reg_out" output="clb.reg_out">
|
||||
<!--pack_pattern name="chain" in_port="fle[7:7].reg_out" out_port="clb.reg_out"/-->
|
||||
</direct>
|
||||
<direct name="shift_register_link" input="fle[6:0].reg_out" output="fle[7:1].reg_in">
|
||||
<!--pack_pattern name="chain" in_port="fle[6:0].reg_out" out_port="fle[7:1].reg_in"/-->
|
||||
</direct>
|
||||
<!-- Scan chain links -->
|
||||
<direct name="scan_chain_in" input="clb.sc_in" output="fle[0:0].sc_in">
|
||||
<!-- Put all inter-block carry chain delay on this one edge -->
|
||||
<delay_constant max="0.16e-9" in_port="clb.sc_in" out_port="fle[0:0].sc_in"/>
|
||||
</direct>
|
||||
<direct name="scan_chain_out" input="fle[7:7].sc_out" output="clb.sc_out">
|
||||
</direct>
|
||||
<direct name="scan_chain_link" input="fle[6:0].sc_out" output="fle[7:1].sc_in">
|
||||
</direct>
|
||||
<!-- Carry chain links -->
|
||||
<direct name="carry_chain_in" input="clb.cin" output="fle[0:0].cin">
|
||||
<!-- Put all inter-block carry chain delay on this one edge -->
|
||||
<pack_pattern name="chain" in_port="clb.cin" out_port="fle[0:0].cin"/>
|
||||
<delay_constant max="0.16e-9" in_port="clb.cin" out_port="fle[0:0].cin"/>
|
||||
</direct>
|
||||
<direct name="carry_chain_out" input="fle[7:7].cout" output="clb.cout">
|
||||
<pack_pattern name="chain" in_port="fle[7:7].cout" out_port="clb.cout"/>
|
||||
</direct>
|
||||
<direct name="carry_chain_link" input="fle[6:0].cout" output="fle[7:1].cin">
|
||||
<pack_pattern name="chain" in_port="fle[6:0].cout" out_port="fle[7:1].cin"/>
|
||||
</direct>
|
||||
</interconnect>
|
||||
<!-- Every input pin is driven by 15% of the tracks in a channel, every output pin is driven by 10% of the tracks in a channel -->
|
||||
<!-- Place this general purpose logic block in any unspecified column -->
|
||||
</pb_type>
|
||||
<!-- Define general purpose logic block (CLB) ends -->
|
||||
<!-- Define fracturable multiplier begin -->
|
||||
<pb_type name="mult_8">
|
||||
<input name="a" num_pins="8"/>
|
||||
<input name="b" num_pins="8"/>
|
||||
<output name="out" num_pins="16"/>
|
||||
<mode name="mult_8x8">
|
||||
<pb_type name="mult_8x8_slice" num_pb="1">
|
||||
<input name="A_cfg" num_pins="8"/>
|
||||
<input name="B_cfg" num_pins="8"/>
|
||||
<output name="OUT_cfg" num_pins="16"/>
|
||||
<pb_type name="mult_8x8" blif_model=".subckt mult_8" num_pb="1">
|
||||
<input name="A" num_pins="8"/>
|
||||
<input name="B" num_pins="8"/>
|
||||
<output name="Y" num_pins="16"/>
|
||||
<delay_constant max="1.523e-9" min="0.776e-9" in_port="mult_8x8.A" out_port="mult_8x8.Y"/>
|
||||
<delay_constant max="1.523e-9" min="0.776e-9" in_port="mult_8x8.B" out_port="mult_8x8.Y"/>
|
||||
</pb_type>
|
||||
<interconnect>
|
||||
<direct name="a2a" input="mult_8x8_slice.A_cfg" output="mult_8x8.A">
|
||||
</direct>
|
||||
<direct name="b2b" input="mult_8x8_slice.B_cfg" output="mult_8x8.B">
|
||||
</direct>
|
||||
<direct name="out2out" input="mult_8x8.Y" output="mult_8x8_slice.OUT_cfg">
|
||||
</direct>
|
||||
</interconnect>
|
||||
<power method="pin-toggle">
|
||||
<port name="A_cfg" energy_per_toggle="2.13e-12"/>
|
||||
<port name="B_cfg" energy_per_toggle="2.13e-12"/>
|
||||
<static_power power_per_instance="0.0"/>
|
||||
</power>
|
||||
</pb_type>
|
||||
<interconnect>
|
||||
<direct name="a2a" input="mult_8.a" output="mult_8x8_slice.A_cfg">
|
||||
<delay_constant max="134e-12" min="74e-12" in_port="mult_8.a" out_port="mult_8x8_slice.A_cfg"/>
|
||||
</direct>
|
||||
<direct name="b2b" input="mult_8.b" output="mult_8x8_slice.B_cfg">
|
||||
<delay_constant max="134e-12" min="74e-12" in_port="mult_8.b" out_port="mult_8x8_slice.B_cfg"/>
|
||||
</direct>
|
||||
<direct name="out2out" input="mult_8x8_slice.OUT_cfg" output="mult_8.out">
|
||||
<delay_constant max="1.93e-9" min="74e-12" in_port="mult_8x8_slice.OUT_cfg" out_port="mult_8.out"/>
|
||||
</direct>
|
||||
</interconnect>
|
||||
</mode>
|
||||
<!-- Place this multiplier block every 8 columns from (and including) the sixth column -->
|
||||
<power method="sum-of-children"/>
|
||||
</pb_type>
|
||||
<!-- Define fracturable multiplier end -->
|
||||
</complexblocklist>
|
||||
</architecture>
|
||||
|
|
@ -1 +1 @@
|
|||
Subproject commit 5bea5da827600c06990be740b580213eebae6263
|
||||
Subproject commit 8f4c5567f4ff92db0659d54dd1eb6435d3b7a9f6
|
||||
2
yosys
2
yosys
|
|
@ -1 +1 @@
|
|||
Subproject commit 389b8d0f94a24c30e5b9352866f0999b14312b23
|
||||
Subproject commit 2829cd9caa5729b3b7e2393d3428e265cd038ea6
|
||||
Loading…
Reference in New Issue