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参数资料
| 型号： | IMISC643AYB |
| 元件分类： | 时钟产生/分配 |
| 英文描述： | PROC SPECIFIC CLOCK GENERATOR, PDSO48 |
| 封装： | SSOP-48 |
| 文件页数： | 10/12页 |
| 文件大小： | 138K |
| 代理商： | IMISC643AYB |
SC643
I
2C Clock Generator for 3 DIMM, Pentium
II Designs
Approved Product
INTERNATIONAL MICROCIRCUITS, INC. 525 LOS COCHES ST.
Rev.1.6
6/20/97
MILPITAS, CA 95035. TEL: 408-263-6300. FAX 408-263-6571
Page 7 of 12
SERIAL CONTROL REGISTERS (Cont.)
Byte 4: Additional SDRAM Clock Register (1 = enable, 0 = Stopped)
Bit
@Pup
Pin#
Description
7
x
-
Reserved
6
x
-
Reserved
5
x
-
Reserved
4
x
-
Reserved
3
1
17
SDRAM11 enable/Stopped
2
1
18
SDRAM10 enable/Stopped
1
20
SDRAM9 enable/Stopped
0
1
21
SDRAM8 enable/Stopped
Byte 5: Peripheral Control (1 = enable, 0 = Stopped)
Bit
@Pup
Pin#
Description
7
x
-
Reserved
6
x
-
Reserved
5
x
-
Reserved
4
1
47
IOAPIC enable/Stopped
3
x
-
Reserved
2
x
-
Reserved
1
x
46
REF1 / CS# enable/Stopped
0
1
2
REF0 enable/Stopped
Byte 6: Reserved Register
Bit
@Pup
Pin#
Description
7x
-
Reserved
6x
-
Reserved
5x
-
Reserved
4x
-
Reserved
3x
-
Reserved
2x
-
Reserved
1x
-
Reserved
0x
-
Reserved
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