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Move clk up in dff arrays for supply pin access

This commit is contained in:
Matt Guthaus 2018-10-05 08:18:38 -07:00
parent 68b30d601e
commit bb83e5f1be
3 changed files with 12 additions and 9 deletions
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7
compiler/modules/dff_array.py
View File

@ -136,11 +136,12 @@ class dff_array(design.design):
# Create vertical spines to a single horizontal rail # Create vertical spines to a single horizontal rail
clk_pin = self.dff_insts[0,0].get_pin("clk") clk_pin = self.dff_insts[0,0].get_pin("clk")
clk_ypos = 2*self.m3_pitch+self.m3_width
debug.check(clk_pin.layer=="metal2","DFF clk pin not on metal2") debug.check(clk_pin.layer=="metal2","DFF clk pin not on metal2")
self.add_layout_pin_segment_center(text="clk", self.add_layout_pin_segment_center(text="clk",
layer="metal3", layer="metal3",
start=vector(0,self.m3_pitch+self.m3_width), start=vector(0,clk_ypos),
end=vector(self.width,self.m3_pitch+self.m3_width)) end=vector(self.width,clk_ypos))
for col in range(self.columns): for col in range(self.columns):
clk_pin = self.dff_insts[0,col].get_pin("clk") clk_pin = self.dff_insts[0,col].get_pin("clk")
# Make a vertical strip for each column # Make a vertical strip for each column
@ -150,7 +151,7 @@ class dff_array(design.design):
height=self.height) height=self.height)
# Drop a via to the M3 pin # Drop a via to the M3 pin
self.add_via_center(layers=("metal2","via2","metal3"), self.add_via_center(layers=("metal2","via2","metal3"),
offset=vector(clk_pin.cx(),self.m3_pitch+self.m3_width)) offset=vector(clk_pin.cx(),clk_ypos))

7
compiler/modules/dff_buf_array.py
View File

@ -153,6 +153,7 @@ class dff_buf_array(design.design):
# Create vertical spines to a single horizontal rail # Create vertical spines to a single horizontal rail
clk_pin = self.dff_insts[0,0].get_pin("clk") clk_pin = self.dff_insts[0,0].get_pin("clk")
clk_ypos = 2*self.m3_pitch+self.m3_width
debug.check(clk_pin.layer=="metal2","DFF clk pin not on metal2") debug.check(clk_pin.layer=="metal2","DFF clk pin not on metal2")
if self.columns==1: if self.columns==1:
self.add_layout_pin(text="clk", self.add_layout_pin(text="clk",
@ -163,8 +164,8 @@ class dff_buf_array(design.design):
else: else:
self.add_layout_pin_segment_center(text="clk", self.add_layout_pin_segment_center(text="clk",
layer="metal3", layer="metal3",
start=vector(0,self.m3_pitch+self.m3_width), start=vector(0,clk_ypos),
end=vector(self.width,self.m3_pitch+self.m3_width)) end=vector(self.width,clk_ypos))
for col in range(self.columns): for col in range(self.columns):
clk_pin = self.dff_insts[0,col].get_pin("clk") clk_pin = self.dff_insts[0,col].get_pin("clk")
@ -175,7 +176,7 @@ class dff_buf_array(design.design):
height=self.height) height=self.height)
# Drop a via to the M3 pin # Drop a via to the M3 pin
self.add_via_center(layers=("metal2","via2","metal3"), self.add_via_center(layers=("metal2","via2","metal3"),
offset=vector(clk_pin.cx(),self.m3_pitch+self.m3_width)) offset=vector(clk_pin.cx(),clk_ypos))

7
compiler/modules/dff_inv_array.py
View File

@ -153,6 +153,7 @@ class dff_inv_array(design.design):
# Create vertical spines to a single horizontal rail # Create vertical spines to a single horizontal rail
clk_pin = self.dff_insts[0,0].get_pin("clk") clk_pin = self.dff_insts[0,0].get_pin("clk")
clk_ypos = 2*self.m3_pitch+self.m3_width
debug.check(clk_pin.layer=="metal2","DFF clk pin not on metal2") debug.check(clk_pin.layer=="metal2","DFF clk pin not on metal2")
if self.columns==1: if self.columns==1:
self.add_layout_pin(text="clk", self.add_layout_pin(text="clk",
@ -163,8 +164,8 @@ class dff_inv_array(design.design):
else: else:
self.add_layout_pin_segment_center(text="clk", self.add_layout_pin_segment_center(text="clk",
layer="metal3", layer="metal3",
start=vector(0,self.m3_pitch+self.m3_width), start=vector(0,clk_ypos),
end=vector(self.width,self.m3_pitch+self.m3_width)) end=vector(self.width,clk_ypos))
for col in range(self.columns): for col in range(self.columns):
clk_pin = self.dff_insts[0,col].get_pin("clk") clk_pin = self.dff_insts[0,col].get_pin("clk")
# Make a vertical strip for each column # Make a vertical strip for each column
@ -174,7 +175,7 @@ class dff_inv_array(design.design):
height=self.height) height=self.height)
# Drop a via to the M3 pin # Drop a via to the M3 pin
self.add_via_center(layers=("metal2","via2","metal3"), self.add_via_center(layers=("metal2","via2","metal3"),
offset=vector(clk_pin.cx(),self.m3_pitch+self.m3_width)) offset=vector(clk_pin.cx(),clk_ypos))