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ttl_serdes_7series: add dci (HP bank) support

This commit is contained in:
Sebastien Bourdeauducq 2021-02-07 22:32:18 +08:00
parent 997a48fb31
commit cf9cf0ab6f
1 changed files with 20 additions and 10 deletions
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14
artiq/gateware/rtio/phy/ttl_serdes_7series.py
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@ -72,7 +72,7 @@ class _IOSERDESE2_8X(Module):
class Output_8X(ttl_serdes_generic.Output): class Output_8X(ttl_serdes_generic.Output):
def __init__(self, pad, pad_n=None, invert=False): def __init__(self, pad, pad_n=None, invert=False, dci=False):
serdes = _OSERDESE2_8X(invert) serdes = _OSERDESE2_8X(invert)
self.submodules += serdes self.submodules += serdes
ttl_serdes_generic.Output.__init__(self, serdes) ttl_serdes_generic.Output.__init__(self, serdes)
@ -87,7 +87,7 @@ class Output_8X(ttl_serdes_generic.Output):
class InOut_8X(ttl_serdes_generic.InOut): class InOut_8X(ttl_serdes_generic.InOut):
def __init__(self, pad, pad_n=None): def __init__(self, pad, pad_n=None, dci=False):
serdes = _IOSERDESE2_8X() serdes = _IOSERDESE2_8X()
self.submodules += serdes self.submodules += serdes
ttl_serdes_generic.InOut.__init__(self, serdes) ttl_serdes_generic.InOut.__init__(self, serdes)
@ -96,6 +96,16 @@ class InOut_8X(ttl_serdes_generic.InOut):
self.specials += Instance("IOBUF", self.specials += Instance("IOBUF",
i_I=serdes.ser_out, o_O=serdes.ser_in, i_T=serdes.t_out, i_I=serdes.ser_out, o_O=serdes.ser_in, i_T=serdes.t_out,
io_IO=pad) io_IO=pad)
else:
if dci:
self.specials += Instance("IOBUFDS_DCIEN",
p_DIFF_TERM="TRUE",
p_IBUF_LOW_PWR="TRUE",
p_USE_IBUFDISABLE="TRUE",
i_IBUFDISABLE=~serdes.t_out,
i_DCITERMDISABLE=~serdes.t_out,
i_I=serdes.ser_out, o_O=serdes.ser_in, i_T=serdes.t_out,
io_IO=pad, io_IOB=pad_n)
else: else:
self.specials += Instance("IOBUFDS_INTERMDISABLE", self.specials += Instance("IOBUFDS_INTERMDISABLE",
p_DIFF_TERM="TRUE", p_DIFF_TERM="TRUE",