settings: add MT41K128M16 (Arty) and MT41K256M16 (Nexys video)

2016-04-29 08:11:37 +02:00 · 2016-04-29 08:11:37 +02:00 · bf291f523a
parent 6ef6e2f388
commit bf291f523a
1 changed files with 30 additions and 0 deletions
--- a/litedram/settings.py
+++ b/litedram/settings.py
@ -194,3 +194,33 @@ class MT41J128M16(SDRAMModule):
    tWTR  = 3
    tREFI = 64*1000*1000/16384
    tRFC  = 260
+
+
+class MT41K128M16(SDRAMModule):
+    memtype = "DDR3"
+    # geometry
+    nbanks = 8
+    nrows  = 16384
+    ncols  = 1024
+    # timings (-7 speedgrade)
+    tRP   = 13.75
+    tRCD  = 13.75
+    tWR   = 15
+    tWTR  = 8
+    tREFI = 64*1000*1000/8192
+    tRFC  = 160
+
+
+class MT41K256M16(SDRAMModule):
+    memtype = "DDR3"
+    # geometry
+    nbanks = 8
+    nrows  = 32768
+    ncols  = 1024
+    # timings (-7 speedgrade)
+    tRP   = 13.75
+    tRCD  = 13.75
+    tWR   = 15
+    tWTR  = 8
+    tREFI = 64*1000*1000/8192
+    tRFC  = 260