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98 Datasheet

2.14.2 MC_DIMM_CLK_RATIO

This register is for the Requested DIMM clock ratio (Qclk). This is the data rate going to

the DIMM. The clock sent to the DIMM is 1/2 of QCLK rate.

Device: 3

Function: 4

Offset: 54h

Access as a Dword

Bit Type

Reset

Value

Description

4:0 RW 6 QCLK_RATIO. Requested ratio of Qclk/Bclk.

00000 = RSVD

00110 = 800 MHz

01000 = 1066 MHz

01010 = 1333 MHz

1 2 ... 93 94 95 96 97 98

Datasheet, Volume 2 1
Contents 3
4 Datasheet 4
Datasheet 5 5
6 Datasheet 6
Datasheet 7 7
8 Datasheet 8
Revision History 9
10 Datasheet 10
1 Introduction 11
Introduction 12
12 Datasheet 12
1.2 References 13
14 Datasheet 14
2 Register Description 15
2.3 Device Mapping 17
Control Registers 24
Address Registers 25
Rank Registers 26
Thermal Control Registers 27
2.5 PCI Standard Registers 36
Identification Register 38
Express space 39
2.6.1 SAD_PAM0123 41
2.6.2 SAD_PAM456 43
2.6.3 SAD_HEN 44
2.6.4 SAD_SMRAM 44
2.6.5 SAD_PCIEXBAR 45
19:6 RW 46
2:1 RW 46
2.7 Intel QPI Link Registers 47
2.8.2 MC_STATUS 49
13:12 RW0C 50
11:0 RW0C 50
2.8.4 MC_SMI_SPARE_CNTRL 51
2.8.5 MC_RESET_CONTROL 51
2.8.6 MC_CHANNEL_MAPPER 52
2.8.7 MC_MAX_DOD 53
2.8.8 MC_RD_CRDT_INIT 54
2.8.9 MC_CRDT_WR_THLD 55
2.8.10 MC_SCRUBADDR_LO 55
2.8.11 MC_SCRUBADDR_HI 56
29:28 RW 58
25:24 RW 58
21:20 RW 58
17:16 RW 58
13:12 RW 58
Registers 59
MC_CHANNEL_1_DIMM_INIT_CMD 60
MC_CHANNEL_2_DIMM_INIT_CMD 60
MC_CHANNEL_1_DIMM_INIT_PARAMS 61
MC_CHANNEL_2_DIMM_INIT_PARAMS 61
MC_CHANNEL_1_DIMM_INIT_STATUS 62
MC_CHANNEL_2_DIMM_INIT_STATUS 62
2.10.5 MC_CHANNEL_0_DDR3CMD 63
MC_CHANNEL_1_DDR3CMD 63
MC_CHANNEL_2_DDR3CMD 63
3:2 RW 0 64
31:16 RW 0 64
15:0 RW 0 64
23:20 RW 0 65
19:16 RW 0 65
7:0 RW 0 65
MC_CHANNEL_1_RANK_TIMING_A 66
MC_CHANNEL_2_RANK_TIMING_A 66
18:15 RW 0 67
14:11 RW 0 67
10:7 RW 0 67
6:4 RW 0 68
3:1 RW 0 68
MC_CHANNEL_1_RANK_TIMING_B 69
MC_CHANNEL_2_RANK_TIMING_B 69
29:19 RW 0 70
18:9 RW 0 70
8:0 RW 0 70
MC_CHANNEL_1_WAQ_PARAMS 75
MC_CHANNEL_2_WAQ_PARAMS 75
MC_CHANNEL_1_ADDR_MATCH 81
MC_CHANNEL_2_ADDR_MATCH 81
31:0 RW 0 82
2:1 RW 0 82
Datasheet 83 83
Register Description 83
26:24 RW 0 87
23:0 RW 0 87
13:4 RW 0 90
3:0 RW 0 90
2.13 Memory Thermal Control 92
Throttling (CLTT) 93
2.14.2 MC_DIMM_CLK_RATIO 98

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