參數(shù)資料
型號(hào): RG82870P2
英文描述: Controller Miscellaneous - Datasheet Reference
中文描述: 控制器雜項(xiàng)-數(shù)據(jù)表參考
文件頁數(shù): 99/157頁
文件大小: 1407K
代理商: RG82870P2
Intel
82845MP/82845MZ Chipset-Mobile (MCH-M)
46
Datasheet
250687-002
R
3.6.4.
CSBSTR – Strength Control Register for CS# Signal Group
Address Offset:
32h
Default Value:
00h
Access:
Read Only, Read/Write
Size:
8 bits
This register controls the drive strength of the I/O buffers for the CS# signal group. This group has two
possible loadings depending on the width of SDRAM devices used in each Row of memory (x8 or x16).
The proper strength can be independently programmed for each configuration. The actual strength used
for each signal is determined by the DRAM Width register (offset 2Ch).
Bit
Descriptions
7
Reserved
6:4
CS# x16 Strength Control: Sets drive strength as shown below:
000 = 0.75 X (default)
001 = 1.00 X
010 = 1.25 X
011 = 1.50 X
100 = 2.00 X
101 = 2.50 X
110 = 3.00 X
111 = 4.00 X
3
Reserved
2:0
CS# x8 Strength Control: Sets drive strength as shown below:
000 = 0.75 X (default)
001 = 1.00 X
010 = 1.25 X
011 = 1.50 X
100 = 2.00 X
101 = 2.50 X
110 = 3.00 X
111 = 4.00 X
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