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Added AS4C4M16 residing on Arduino MKR Vidor 4000

This commit is contained in:
John Simons 2022-03-21 18:56:57 -07:00
parent 4c1ce026e9
commit f14577a147
1 changed files with 9 additions and 0 deletions
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9
litedram/modules.py
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@ -490,6 +490,15 @@ class MT48LC32M8(SDRModule):
technology_timings = _TechnologyTimings(tREFI=64e6/8192, tWTR=(2, None), tCCD=(1, None), tRRD=(None, 15))
speedgrade_timings = {"default": _SpeedgradeTimings(tRP=20, tRCD=20, tWR=15, tRFC=(None, 66), tFAW=None, tRAS=44)}
class AS4C4M16(SDRModule):
# geometry
nbanks = 4
nrows = 4096
ncols = 256
# timings
technology_timings = _TechnologyTimings(tREFI=64e6/4096, tWTR=(2, None), tCCD=(1, None), tRRD=(None, 14))
speedgrade_timings = {"default": _SpeedgradeTimings(tRP=22, tRCD=21, tWR=20, tRFC=(None, 63), tFAW=None, tRAS=42)}
class AS4C16M16(SDRModule):
# geometry
nbanks = 4