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Merge pull request #91 from sd-fritze/master 

modules: Add support for Micron MT47H32M16 DDR2 RAM
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enjoy-digital 2019-08-31 13:59:40 +02:00 committed by GitHub
parent a23b9e7877 fe2cc948dc
commit 8861d8058a
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litedram/modules.py
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@ -218,6 +218,17 @@ class MT47H128M8(SDRAMModule):
speedgrade_timings = {"default": _SpeedgradeTimings(tRP=15, tRCD=15, tWR=15, tRFC=(None, 127.5), tFAW=None, tRAS=None)} speedgrade_timings = {"default": _SpeedgradeTimings(tRP=15, tRCD=15, tWR=15, tRFC=(None, 127.5), tFAW=None, tRAS=None)}
class MT47H32M16(SDRAMModule):
memtype = "DDR2"
# geometry
nbanks = 4
nrows = 8192
ncols = 1024
# timings
technology_timings = _TechnologyTimings(tREFI=64e6/8192, tWTR=(None, 7.5), tCCD=(2, None), tRRD=None)
speedgrade_timings = {"default": _SpeedgradeTimings(tRP=15, tRCD=15, tWR=15, tRFC=(None, 127.5), tFAW=None, tRAS=None)}
class MT47H64M16(SDRAMModule): class MT47H64M16(SDRAMModule):
memtype = "DDR2" memtype = "DDR2"
# geometry # geometry