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Supply to M3 for bank select logic

This commit is contained in:
Matt Guthaus 2018-04-11 16:55:09 -07:00
parent 010a187545
commit 70c92c27ef
1 changed files with 26 additions and 0 deletions
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26
compiler/modules/bank_select.py
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@ -221,6 +221,32 @@ class bank_select(design.design):
width=inv_inst.rx() - out_pin.lx(), width=inv_inst.rx() - out_pin.lx(),
height=out_pin.height()) height=out_pin.height())
# Find the x offsets for where the vias/pins should be placed
a_xoffset = self.logic_inst[0].lx()
b_xoffset = self.inv_inst[0].lx()
for num in range(self.num_control_lines):
# Route both supplies
for n in ["vdd", "gnd"]:
supply_pin = self.inv_inst[num].get_pin(n)
supply_offset = supply_pin.ll().scale(0,1)
self.add_rect(layer="metal1",
offset=supply_offset,
width=self.width)
# Add pins in two locations
for xoffset in [a_xoffset, b_xoffset]:
pin_pos = vector(xoffset, supply_pin.cy())
self.add_via_center(layers=("metal1", "via1", "metal2"),
offset=pin_pos,
rotate=90)
self.add_via_center(layers=("metal2", "via2", "metal3"),
offset=pin_pos,
rotate=90)
self.add_layout_pin_rect_center(text=n,
layer="metal3",
offset=pin_pos)
# Add vdd/gnd supply rails # Add vdd/gnd supply rails
gnd_pin = inv_inst.get_pin("gnd") gnd_pin = inv_inst.get_pin("gnd")
left_gnd_pos = vector(0, gnd_pin.cy()) left_gnd_pos = vector(0, gnd_pin.cy())