Intel BX80605I7870 Data Sheet - Page 66

Mc_channel_0_rank_timing_a, Mc_channel_1_rank_timing_a, Mc_channel_2_rank_timing_a

Page 66 highlights

Register Description 2.10.10 MC_CHANNEL_0_RANK_TIMING_A MC_CHANNEL_1_RANK_TIMING_A MC_CHANNEL_2_RANK_TIMING_A This register contains parameters that specify the rank timing used. All parameters are in DCLK. Device: 4, 5, 6 Function: 0 Offset: 80h Access as a Dword Bit Type 28:26 RW 25:23 RW 22:19 RW Reset Value Description tddWrTRd. Minimum delay between a write followed by a read to different DIMMs. 000 = 1 001 = 2 010 = 3 0 011 = 4 100 = 5 101 = 6 110 = 7 111 = 8 tdrWrTRd. Minimum delay between a write followed by a read to different ranks on the same DIMM. 000 = 1 001 = 2 0 010 = 3 011 = 4 100 = 5 101 = 6 110 = 7 111 = 8 tsrWrTRd. Minimum delay between a write followed by a read to the same rank. 0000 = 10 0001 = 11 0010 = 12 0011 = 13 0100 = 14 0 0101 = 15 0110 = 16 0111 = 17 1000 = 18 1001 = 19 1010 = 20 1011 = 21 1100 = 22 66 Datasheet

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Register Description
66
Datasheet
2.10.10
MC_CHANNEL_0_RANK_TIMING_A
MC_CHANNEL_1_RANK_TIMING_A
MC_CHANNEL_2_RANK_TIMING_A
This register contains parameters that specify the rank timing used. All parameters are
in DCLK.
Device:
4, 5, 6
Function: 0
Offset:
80h
Access as a Dword
Bit
Type
Reset
Value
Description
28:26
RW
0
tddWrTRd.
Minimum delay between a write followed by a read to different DIMMs.
000 = 1
001 = 2
010 = 3
011 = 4
100 = 5
101 = 6
110 = 7
111 = 8
25:23
RW
0
tdrWrTRd.
Minimum delay between a write followed by a read to different ranks on the
same DIMM.
000 = 1
001 = 2
010 = 3
011 = 4
100 = 5
101 = 6
110 = 7
111 = 8
22:19
RW
0
tsrWrTRd.
Minimum delay between a write followed by a read to the same rank.
0000 = 10
0001 = 11
0010 = 12
0011 = 13
0100 = 14
0101 = 15
0110 = 16
0111 = 17
1000 = 18
1001 = 19
1010 = 20
1011 = 21
1100 = 22