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[Arch] Update arch to enable more routability in shift register mode

This commit is contained in:
tangxifan 2020-11-25 17:04:08 -07:00
parent 6aefa8077e
commit 0fa3604b6c
1 changed files with 5 additions and 1 deletions
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6
ARCH/vpr_arch/k4_frac_N8_tileable_register_scan_chain_nonLR_caravel_io_skywater130nm.xml
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@ -554,6 +554,7 @@
<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">
@ -567,13 +568,16 @@
<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="fle.clk" output="shift_reg.clk"/>
<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 -->