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Connect RBL to bottom of precharge cell

This commit is contained in:
mrg 2020-06-04 10:22:52 -07:00
parent 249b5355ba
commit 7aafa43897
1 changed files with 9 additions and 10 deletions
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17
compiler/modules/bank.py
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@ -124,22 +124,21 @@ class bank(design.design):
def route_rbl(self, port): def route_rbl(self, port):
""" Route the rbl_bl and rbl_wl """ """ Route the rbl_bl and rbl_wl """
bl_pin_name = self.bitcell_array.get_rbl_bl_name(self.port_rbl_map[port]) # Connect the rbl to the port data pin
bl_pin = self.bitcell_array_inst.get_pin(bl_pin_name) bl_pin = self.port_data_inst[port].get_pin("rbl_bl")
# This will ensure the pin is only on the top or bottom edge
if port % 2: if port % 2:
via_offset = bl_pin.uc() + vector(0, self.m2_pitch) pin_offset = bl_pin.uc()
left_right_offset = vector(self.max_x_offset, via_offset.y) left_right_offset = vector(self.max_x_offset, pin_offset.y)
else: else:
via_offset = bl_pin.bc() - vector(0, self.m2_pitch) pin_offset = bl_pin.bc()
left_right_offset = vector(self.min_x_offset, via_offset.y) left_right_offset = vector(self.min_x_offset, pin_offset.y)
self.add_via_stack_center(from_layer=bl_pin.layer, self.add_via_stack_center(from_layer=bl_pin.layer,
to_layer="m3", to_layer="m3",
offset=via_offset) offset=pin_offset)
self.add_layout_pin_segment_center(text="rbl_bl{0}".format(port), self.add_layout_pin_segment_center(text="rbl_bl{0}".format(port),
layer="m3", layer="m3",
start=left_right_offset, start=left_right_offset,
end=via_offset) end=pin_offset)
def route_bitlines(self, port): def route_bitlines(self, port):
""" Route the bitlines depending on the port type rw, w, or r. """ """ Route the bitlines depending on the port type rw, w, or r. """