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modules/ddr3: add MT41K64M16

This commit is contained in:
Florent Kermarrec 2019-02-20 22:47:55 +01:00
parent ea6b841dfe
commit 79806aad20
1 changed files with 17 additions and 0 deletions
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17
litedram/modules.py
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@ -217,6 +217,23 @@ class P3R1GE4JGF(SDRAMModule):
# DDR3 (Chips) # DDR3 (Chips)
class MT41K64M16(SDRAMModule):
memtype = "DDR3"
# geometry
nbanks = 8
nrows = 8192
ncols = 1024
# timings
technology_timings = _TechnologyTimings(tREFI=64e6/8192, tWTR=(4, 7.5), tCCD=(4, None), tRRD=(4, 10))
speedgrade_timings = {
"800": _SpeedgradeTimings(tRP=13.1, tRCD=13.1, tWR=13.1, tRFC=64, tFAW=(None, 50), tRAS=37.5),
"1066": _SpeedgradeTimings(tRP=13.1, tRCD=13.1, tWR=13.1, tRFC=86, tFAW=(None, 50), tRAS=37.5),
"1333": _SpeedgradeTimings(tRP=13.5, tRCD=13.5, tWR=13.5, tRFC=107, tFAW=(None, 45), tRAS=36),
"1600": _SpeedgradeTimings(tRP=13.75, tRCD=13.75, tWR=13.75, tRFC=128, tFAW=(None, 40), tRAS=35),
}
speedgrade_timings["default"] = speedgrade_timings["1600"]
class MT41J128M16(SDRAMModule): class MT41J128M16(SDRAMModule):
memtype = "DDR3" memtype = "DDR3"
# geometry # geometry