def add_modules(self):
self.m1m2_via = contact(layer_stack=("metal1", "via1", "metal2"))
# Vertical metal rail gap definition
self.metal2_extend_contact = (self.m1m2_via.second_layer_height -
self.m1m2_via.contact_width) / 2
self.gap_between_rails = self.metal2_extend_contact + drc[
"metal2_to_metal2"]
self.gap_between_rail_offset = self.gap_between_rails + drc[
"minwidth_metal2"]
self.via_shift = (self.m1m2_via.second_layer_width -
self.m1m2_via.first_layer_width) / 2
# used to shift contact when connecting to NAND3 C pin down
self.contact_shift = (self.m1m2_via.first_layer_width -
self.m1m2_via.contact_width) / 2
self.inv = pinv(name="pinverter",
nmos_width=drc["minwidth_tx"],
beta=2,
height=self.bitcell_height)
self.add_mod(self.inv)
self.nand2 = nand_2(name="pnand2",
nmos_width=self.nand2_nmos_width,
height=self.bitcell_height)
self.add_mod(self.nand2)
self.nand3 = nand_3(name="pnand3",
nmos_width=self.nand3_nmos_width,
height=self.bitcell_height)
self.add_mod(self.nand3)
# CREATION OF PRE-DECODER
self.pre2_4 = pre2x4(self.nand2_nmos_width, "pre2x4")
self.add_mod(self.pre2_4)
self.pre3_8 = pre3x8(self.nand3_nmos_width, "pre3x8")
self.add_mod(self.pre3_8)
def add_decoders(self):
""" Create the decoders based on the number of pre-decodes """
self.pre2_4 = pre2x4()
self.add_mod(self.pre2_4)
self.pre3_8 = pre3x8()
self.add_mod(self.pre3_8)
def add_modules(self):
self.dec4_4 = decode_stage_4_4()
self.add_mod(self.dec4_4)
self.dec5_4 = decode_stage_5_4()
self.add_mod(self.dec5_4)
self.pre2_4 = pre2x4()
self.add_mod(self.pre2_4)
self.pre3_8 = pre3x8()
self.add_mod(self.pre3_8)
def add_modules(self):
self.inv = pinv()
self.add_mod(self.inv)
self.nand2 = pnand2()
self.add_mod(self.nand2)
self.nand3 = pnand3()
self.add_mod(self.nand3)
# CREATION OF PRE-DECODER
self.pre2_4 = pre2x4()
self.add_mod(self.pre2_4)
self.pre3_8 = pre3x8()
self.add_mod(self.pre3_8)
def create_modules(self):
""" Add all the required modules """
self.nor3 = nor3()
self.add_mod(self.nor3)
self.nand2 = nand2()
self.add_mod(self.nand2)
self.inv = pinv()
self.add_mod(self.inv)
self.inv2 = pinv(size=2)
self.add_mod(self.inv2)
self.inv5 = pinv(size=5)
self.add_mod(self.inv5)
if self.num_banks == 4:
self.pre2_4 = pre2x4()
self.add_mod(self.pre2_4)