40 lines
1.2 KiB
Python
40 lines
1.2 KiB
Python
from migen.fhdl.module import Module
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from migen.fhdl.specials import Instance
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from migen.genlib.io import DifferentialInput, DifferentialOutput
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class AlteraDifferentialInputImpl(Module):
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def __init__(self, i_p, i_n, o):
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self.specials += Instance("ALT_INBUF_DIFF",
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name="ibuf_diff",
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i_i=i_p,
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i_ibar=i_n,
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o_o=o)
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class AlteraDifferentialInput:
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@staticmethod
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def lower(dr):
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return AlteraDifferentialInputImpl(dr.i_p, dr.i_n, dr.o)
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class AlteraDifferentialOutputImpl(Module):
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def __init__(self, i, o_p, o_n):
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self.specials += Instance("ALT_OUTBUF_DIFF",
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name="obuf_diff",
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i_i=i,
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o_o=o_p,
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o_obar=o_n)
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class AlteraDifferentialOutput:
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@staticmethod
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def lower(dr):
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return AlteraDifferentialOutputImpl(dr.i, dr.o_p, dr.o_n)
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altera_special_overrides = {
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DifferentialInput: AlteraDifferentialInput,
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DifferentialOutput: AlteraDifferentialOutput
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}
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