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AR# 22309

MIG 1.3/1.4 - Is the DQS strobe numbering directly compatible with the DIMM device?

描述

Keywords: data, dq, compatibility

Is the DQS strobe numbering directly compatible with the DIMM device?

解决方案

The numbering in MIG code is not compatible with the numbering of DQS on the DIMM device.

Listed below is the cross-reference for all 36 DQS signals on ML461 with respect to the numbering called out by MIG for the 144-bit code for 4:1 DQ:DQS ratio.


Byte.......Bits...........DIMM#...............DIMM DQS..........MIG Code DQS#
0..............00:03.........0..........................0..............................0
0..............04:07.........0..........................9..............................1
1..............08:11.........0..........................1..............................2
1..............12:15.........0..........................10............................3
2.................................0..........................2..............................4
2.................................0..........................11............................5
3.................................0..........................3..............................6
3.................................0..........................12............................7
4.................................0..........................4..............................8
4.................................0..........................13............................9
5.................................0..........................5..............................10
5.................................0..........................14............................11
6.................................0..........................6..............................12
6.................................0..........................15............................13
7.................................0..........................7..............................14
7.................................0..........................16............................15
Chk 0........................0...........................8..............................16
Chk 0........................0..........................17.............................17
8.................................1..........................0...............................18
8.................................1..........................9...............................19
9.................................1..........................1...............................20
9.................................1..........................10.............................21
10...............................1..........................2...............................22
10...............................1..........................11.............................23
11...............................1..........................3...............................24
11...............................1..........................12.............................25
12...............................1..........................4...............................26
12...............................1..........................13.............................27
13...............................1..........................5...............................28
13...............................1..........................14.............................29
14...............................1..........................6...............................30
14...............................1..........................15.............................31
15...............................1..........................7...............................32
15...............................1..........................16.............................33
Chk 1........................1...........................8...............................34
Chk 1........................1...........................17.............................35
AR# 22309
日期 04/06/2009
状态 Archive
Type 综合文章
的页面