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[Arch] Critical patch on LE architecture which enables correct shift register connections

This commit is contained in:
tangxifan 2020-11-25 16:40:54 -07:00
parent fb9834e4e6
commit 6aefa8077e
1 changed files with 6 additions and 3 deletions
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9
ARCH/vpr_arch/k4_frac_N8_tileable_register_scan_chain_nonLR_caravel_io_skywater130nm.xml
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@ -396,18 +396,21 @@
<direct name="direct3" input="ff[0].Q" output="ff[1].DI"/>
<direct name="direct4" input="ff[1].Q" output="fabric.sc_out"/>
<direct name="direct5" input="ff[1].Q" output="fabric.reg_out"/>
<direct name="direct6" input="frac_logic.out[1:1]" output="ff[1:1].D"/>
<complete name="complete1" input="fabric.clk" output="ff[1:0].clk"/>
<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="ff[0].Q frac_logic.out[0]" output="fabric.out[0]">
<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="mux3" input="ff[1].Q frac_logic.out[1]" output="fabric.out[1]">
<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]"/>