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Separate netlist/layout for flop and precharge array.

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This commit is contained in:
Matt Guthaus
2018-08-27 10:54:21 -07:00
parent 138a70fc23
commit 87f539f3a8
2 changed files with 50 additions and 30 deletions
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compiler/modules/precharge_array.py
+30 -17
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@@ -27,9 +27,8 @@ class precharge_array(design.design):
self.width = self.columns * self.pc_cell.width
self.height = self.pc_cell.height
self.add_pins()
self.create_netlist()
self.create_layout()
self.DRC_LVS()
def add_pins(self):
"""Adds pins for spice file"""
@@ -39,9 +38,14 @@ class precharge_array(design.design):
self.add_pin("en")
self.add_pin("vdd")
def create_netlist(self):
self.add_pins()
self.create_insts()
def create_layout(self):
self.add_insts()
self.place_insts()
self.add_layout_pins()
self.DRC_LVS()
def add_layout_pins(self):
@@ -55,20 +59,8 @@ class precharge_array(design.design):
for inst in self.local_insts:
self.copy_layout_pin(inst, "vdd")
def add_insts(self):
"""Creates a precharge array by horizontally tiling the precharge cell"""
self.local_insts = []
for i in range(self.columns):
name = "pre_column_{0}".format(i)
offset = vector(self.pc_cell.width * i, 0)
inst = self.add_inst(name=name,
mod=self.pc_cell,
offset=offset)
self.local_insts.append(inst)
self.connect_inst(["bl[{0}]".format(i), "br[{0}]".format(i), "en", "vdd"])
for i in range(len(self.local_insts)):
inst = self.local_insts[i]
bl_pin = inst.get_pin("bl")
self.add_layout_pin(text="bl[{0}]".format(i),
layer="metal2",
@@ -81,4 +73,25 @@ class precharge_array(design.design):
offset=br_pin.ll(),
width=drc["minwidth_metal2"],
height=bl_pin.height())
def create_insts(self):
"""Creates a precharge array by horizontally tiling the precharge cell"""
self.local_insts = []
for i in range(self.columns):
name = "pre_column_{0}".format(i)
offset = vector(self.pc_cell.width * i, 0)
inst = self.add_inst(name=name,
mod=self.pc_cell,
offset=offset)
self.local_insts.append(inst)
self.connect_inst(["bl[{0}]".format(i), "br[{0}]".format(i), "en", "vdd"])
def place_insts(self):
""" Places precharge array by horizontally tiling the precharge cell"""
for i in range(self.columns):
name = "pre_column_{0}".format(i)
offset = vector(self.pc_cell.width * i, 0)
inst = self.place_inst(name=name,
offset=offset)