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AMD Geode™ LX Processors Data Book 227
GeodeLink™ Memory Controller Register Descriptions
33234H
6.2.2.9 Refresh and SDRAM Program (MC_CF07_DATA)
MSR Address 20000018h
Typ e R /W
Reset Value 10071007_00000040h
MC_CF07_DATA Register Map
63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32
D1_SZ RSVD
D1_MB
RSVD
D1_CB
RSVD
D1_PSZ D0_SZ RSVD
D0_MB
RSVD
D0_CB
RSVD
D0_PSZ
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
RSVD
MSR_BA
RST_DLL
EMR_QFC
EMR_DRV
EMR_DLL
REF_INT
REF_STAG
REF_TST
RSVD
SOFT_RST
PROG_DRAM
MC_CF07_DATA Bit Descriptions
Bit Name Description
63:60 D1_SZ DIMM1 Size.
0000: Reserved 0100: 64 MB 1000: 1 GB
0001: 8 MB (Default) 0101: 128 MB 1001-1111: Reserved
0010: 16 MB 0110: 256 MB
0011: 32 MB 0111: 512 MB
59:57 RSVD Reserved.
56 D1_MB DIMM1 Module Banks. Number of module banks for DIMM1.
0: 1 Module bank. (Default)
1: 2 Module banks.
55:53 RSVD Reserved.
52 D1_CB DIMM1 Component Banks. Number of component banks per module bank for DIMM1.
0: 2 Component banks. (Default)
1: 4 Component banks.
51 RSVD Reserved.
50:48 D1_PSZ DIMM1 Page Size.
000: 1 KB 100: 16 KB
001: 2 KB 101: 32 KB
010: 4 KB 110: Reserved
011: 8 KB 111: DIMM 1 Not Installed (Default)
47:44 D0_SZ DIMM0 Size.
0000: Reserved 0100: 64 MB 1000: 1 GB
0001: 8 MB (Default) 0101: 128 MB 1001-1111: Reserved
0010: 16 MB 0110: 256 MB
0011: 32 MB 0111: 512 MB
43:41 RSVD Reserved.
40 D0_MB DIMM0 Module Banks. Number of module banks for DIMM0.
0: 1 Module bank. (Default)
1: 2 Module banks.
39:37 RSVD Reserved.