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Added write mask to write driver array

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This commit is contained in:
jsowash
2019-08-08 08:46:58 -07:00
parent 9409f60237
commit 59e5441aef
3 changed files with 33 additions and 32 deletions
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compiler/modules/write_driver_array.py
+12 -13
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@@ -49,7 +49,6 @@ class write_driver_array(design.design):
self.width = self.columns * self.bitcell.width
else:
self.width = self.columns * self.driver.width
self.height = self.driver.height
self.place_write_array()
@@ -63,9 +62,9 @@ class write_driver_array(design.design):
for i in range(self.word_size):
self.add_pin("bl_{0}".format(i), "OUTPUT")
self.add_pin("br_{0}".format(i), "OUTPUT")
if self.write_size != None:
if self.write_size is not None:
for i in range(self.num_wmasks):
self.add_pin("en_{}".format(i), "INPUT")
self.add_pin("en_{0}".format(i), "INPUT")
else:
self.add_pin("en", "INPUT")
self.add_pin("vdd", "POWER")
@@ -111,10 +110,10 @@ class write_driver_array(design.design):
driver_spacing = self.bitcell.width
else:
driver_spacing = self.driver.width
for i in range(0,self.columns,self.words_per_row):
index = int(i/self.words_per_row)
base = vector(i * driver_spacing,0)
index = int(i/self.words_per_row)
base = vector(i * driver_spacing, 0)
self.driver_insts[index].place(base)
@@ -152,18 +151,18 @@ class write_driver_array(design.design):
offset=pin_pos)
if self.write_size is not None:
for bit in range(self.num_wmasks):
self.add_layout_pin(text="en_{}".format(bit),
layer="metal1",
offset=self.driver_insts[bit*(self.write_size-1)].get_pin("en").ll().scale(0,1),
width=self.width,
height=drc('minwidth_metal1'))
else:
en_pin = self.driver_insts[bit*self.write_size].get_pin("en")
self.add_layout_pin(text="en_{0}".format(bit),
layer=en_pin.layer,
offset=en_pin.ll(),
width=1.75*self.write_size*en_pin.width(),
height=en_pin.height())
self.add_layout_pin(text="en",
layer="metal1",
offset=self.driver_insts[0].get_pin("en").ll().scale(0,1),
width=self.width,
height=drc('minwidth_metal1'))
def get_w_en_cin(self):