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Route precharge_array vdd in M3

This commit is contained in:
Matt Guthaus 2018-04-04 13:49:55 -07:00
parent f9916f9f43
commit a772217172
1 changed files with 15 additions and 11 deletions
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18
compiler/modules/precharge_array.py
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@ -37,12 +37,10 @@ class precharge_array(design.design):
def create_layout(self): def create_layout(self):
self.add_insts() self.add_insts()
self.add_layout_pins()
self.add_layout_pin(text="vdd",
layer="metal1", def add_layout_pins(self):
offset=self.pc_cell.get_pin("vdd").ll(),
width=self.width,
height=drc["minwidth_metal1"])
self.add_layout_pin(text="en", self.add_layout_pin(text="en",
layer="metal1", layer="metal1",
@ -50,15 +48,23 @@ class precharge_array(design.design):
width=self.width, width=self.width,
height=drc["minwidth_metal1"]) height=drc["minwidth_metal1"])
for inst in self.local_insts:
self.copy_layout_pin(inst, "vdd")
def add_insts(self): def add_insts(self):
"""Creates a precharge array by horizontally tiling the precharge cell""" """Creates a precharge array by horizontally tiling the precharge cell"""
self.local_insts = []
for i in range(self.columns): for i in range(self.columns):
name = "pre_column_{0}".format(i) name = "pre_column_{0}".format(i)
offset = vector(self.pc_cell.width * i, 0) offset = vector(self.pc_cell.width * i, 0)
inst = self.add_inst(name=name, inst = self.add_inst(name=name,
mod=self.pc_cell, mod=self.pc_cell,
offset=offset) offset=offset)
self.local_insts.append(inst)
self.connect_inst(["bl[{0}]".format(i), "br[{0}]".format(i), "en", "vdd"])
bl_pin = inst.get_pin("bl") bl_pin = inst.get_pin("bl")
self.add_layout_pin(text="bl[{0}]".format(i), self.add_layout_pin(text="bl[{0}]".format(i),
layer="metal2", layer="metal2",
@ -71,6 +77,4 @@ class precharge_array(design.design):
offset=br_pin.ll(), offset=br_pin.ll(),
width=drc["minwidth_metal2"], width=drc["minwidth_metal2"],
height=bl_pin.height()) height=bl_pin.height())
self.connect_inst(["bl[{0}]".format(i), "br[{0}]".format(i),
"en", "vdd"])