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Route col decoder address with data bits in channel

This commit is contained in:
mrg 2020-12-15 16:37:23 -08:00
parent 878a9cee8a
commit f55b57033d
1 changed files with 10 additions and 26 deletions
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36
compiler/sram/sram_1bank.py
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@ -402,28 +402,6 @@ class sram_1bank(sram_base):
bank_pins = [self.bank_inst.get_pin(x) for x in bank_names] bank_pins = [self.bank_inst.get_pin(x) for x in bank_names]
route_map.extend(list(zip(bank_pins, dff_pins))) route_map.extend(list(zip(bank_pins, dff_pins)))
if port == 0:
offset = vector(self.control_logic_insts[port].rx() + self.dff.width,
- self.data_bus_size[port] + 2 * self.m1_pitch)
else:
offset = vector(0,
self.bank.height + 2 * self.m1_space)
cr = channel_route.channel_route(netlist=route_map,
offset=offset,
layer_stack=self.m1_stack,
parent=self)
if add_routes:
# This causes problem in magic since it sometimes cannot extract connectivity of isntances
# with no active devices.
# self.add_inst(cr.name, cr)
# self.connect_inst([])
self.add_flat_inst(cr.name, cr)
else:
self.col_addr_bus_size[port] = cr.height
route_map = []
# wmask dff # wmask dff
if self.num_wmasks > 0 and port in self.write_ports: if self.num_wmasks > 0 and port in self.write_ports:
dff_names = ["dout_{}".format(x) for x in range(self.num_wmasks)] dff_names = ["dout_{}".format(x) for x in range(self.num_wmasks)]
@ -473,8 +451,11 @@ class sram_1bank(sram_base):
layer_stack=layer_stack, layer_stack=layer_stack,
parent=self) parent=self)
if add_routes: if add_routes:
self.add_inst(cr.name, cr) # This causes problem in magic since it sometimes cannot extract connectivity of isntances
self.connect_inst([]) # with no active devices.
# self.add_inst(cr.name, cr)
# self.connect_inst([])
self.add_flat_inst(cr.name, cr)
else: else:
self.data_bus_size[port] = max(cr.height, self.col_addr_bus_size[port]) + self.data_bus_gap self.data_bus_size[port] = max(cr.height, self.col_addr_bus_size[port]) + self.data_bus_gap
else: else:
@ -485,8 +466,11 @@ class sram_1bank(sram_base):
layer_stack=layer_stack, layer_stack=layer_stack,
parent=self) parent=self)
if add_routes: if add_routes:
self.add_inst(cr.name, cr) # This causes problem in magic since it sometimes cannot extract connectivity of isntances
self.connect_inst([]) # with no active devices.
# self.add_inst(cr.name, cr)
# self.connect_inst([])
self.add_flat_inst(cr.name, cr)
else: else:
self.data_bus_size[port] = max(cr.height, self.col_addr_bus_size[port]) + self.data_bus_gap self.data_bus_size[port] = max(cr.height, self.col_addr_bus_size[port]) + self.data_bus_gap