vendor.lattice_ecp5: Add support for io with xdr=4
authorKonrad Beckmann <konrad.beckmann@gmail.com>
Mon, 6 Jul 2020 14:01:19 +0000 (16:01 +0200)
committerwhitequark <whitequark@whitequark.org>
Mon, 6 Jul 2020 16:12:07 +0000 (16:12 +0000)
commit981e67408111fbfcf9bd0df1f41feeb03212ce12
treed2158310edcc42dcf28bce07a98a5b10edfabf4d
parent175c8a596ef1adaa74961a47e48a0ed441c05809
vendor.lattice_ecp5: Add support for io with xdr=4

This adds support for IOs with xdr=4 using the
IDDRX2F and ODDRX2F primitives.
nmigen/lib/io.py
nmigen/vendor/lattice_ecp5.py