參數(shù)資料
型號(hào): 82815EM
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): 66/163頁
文件大?。?/td> 1049K
代理商: 82815EM
Intel
82815EM GMCH
R
66
Datasheet
Bit
Description
13
SCS[3]# Buffer Strength (Row 3).
0 = 1.7x 4 loads
1 = 1.0x 0 or 2 loads
12
SCS[2]# Buffer Strength (Row 2).
0 = 1.7x 4 loads
1 = 1.0x 0 or 2 loads
11
SCS[1]# Buffer Strength (Row 1).
0 = 1.7x 4 loads
1 = 1.0x 0 or 2 loads
10
SCS[0]# Buffer Strength (Row 0).
0 = 1.7x 4 loads
1 = 1.0x 0 or 2 loads
9:8
SMAC[7:4]# Buffer Strength (Rows 4/5).
00 = 2.7x > 8 loads
01 = 1.7x 8 loads
10 = 1.0x 0 or 4 loads
11 = 1.0x 0 or 4 loads
Separate copies of these SMA*[7:4] “Command-Per-Clock” signals are provided for each DIMM. So
the loads for each copy are determined by the number of SDRAM devices on the corresponding DIMM
(4, 8, 12, or 16 loads).
The number of loads for each SMA*[7:4] signal group can be determined from SPD data using the
following equation:
Loads = (64 / (SDRAM Device Width for 1
st
row)) + (64 / (SDRAM Device Width for 2
nd
row))
7:6
SMAB[7:4]# Buffer Strength (Rows 2/3).
00 = 2.7x 16 loads
01 = 1.7x 8 loads
10 = 1.0x 0 or 4 loads
11 = 1.0x 0 or 4 loads
5:4
SMAA[7:4] Buffer Strength (Rows 0/1).
00 = 2.7x 16 loads
01 = 1.7x 8 loads
10 = 1.0x 0 or 4 loads
11 = 1.0x 0 or 4 loads
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