From 3a5d45bd5ee989cd2816bd5a771438aeeb985bb3 Mon Sep 17 00:00:00 2001 From: David Shah Date: Mon, 5 Nov 2018 12:26:20 +0000 Subject: [PATCH] modules: Add AS4C32M16 32Mx16 SDRAM Signed-off-by: David Shah --- litedram/modules.py | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/litedram/modules.py b/litedram/modules.py index 1bfc532..7afaae5 100644 --- a/litedram/modules.py +++ b/litedram/modules.py @@ -136,6 +136,17 @@ class AS4C16M16(SDRAMModule): speedgrade_timings = {"default": _SpeedgradeTimings(tRP=18, tRCD=18, tWR=12, tRFC=60, tFAW=None, tRAS=None)} +class AS4C32M16(SDRAMModule): + memtype = "SDR" + # geometry + nbanks = 4 + nrows = 8192 + ncols = 1024 + # timings + technology_timings = _TechnologyTimings(tREFI=64e6/8192, tWTR=(2, None), tCCD=(1, None), tRRD=None) + speedgrade_timings = {"default": _SpeedgradeTimings(tRP=18, tRCD=18, tWR=12, tRFC=60, tFAW=None, tRAS=None)} + + # DDR class MT46V32M16(SDRAMModule): memtype = "DDR"