參數(shù)資料
型號(hào): ICS950402YGLF-T
英文描述: AMD - K8 System Clock Chip
中文描述: AMD公司-的K8系統(tǒng)時(shí)鐘芯片
文件頁(yè)數(shù): 9/19頁(yè)
文件大小: 150K
代理商: ICS950402YGLF-T
9
ICS950402
0700B—04/30/04
I
2
C Table: VCO Frequency Control Register
Control
Function
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
N Div7
N Div6
N Div5
N Div4
N Div3
N Div2
N Div1
N Div0
RW
RW
RW
RW
RW
RW
RW
RW
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
X
X
X
X
X
X
X
X
I
2
C Table: Spread Spectrum Control Register
Control
Function
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
SSP7
SSP6
SSP5
SSP4
SSP3
SSP2
SSP1
SSP0
RW
RW
RW
RW
RW
RW
RW
RW
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
X
X
X
X
X
X
X
X
I
2
C Table: Spread Spectrum Control Register
Control
Function
Reserved
Reserved
Reserved
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Reserved
Reserved
Reserved
SSP12
SSP11
SSP10
SSP9
SSP8
R
R
R
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0
0
1
X
X
X
X
X
RW
RW
RW
RW
RW
I
2
C Table: Output Divider Control Register
Control
Function
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
PCI / HTTDiv3
PCI / HTTDiv2
PCI / HTTDiv1
PCI / HTTDiv0
CPU Div3
CPU Div2
CPU Div1
CPU Div0
RW
RW
RW
RW
RW
RW
RW
RW
X
X
X
X
X
X
X
X
-
-
-
-
CPU divider ratio can be
configured via these 4
bits individually.
See Table 2: Divider Ratio
Combination Table
PWD
-
-
-
-
PCI(9:7)/HTT(2:0) divider
ratio can be configured
via these 4 bits
individually.
See Table 2: Divider Ratio
Combination Table
Byte 15
Pin #
Name
Type
-
-
-
-
-
-
-
It is recommended to use
ICS Spread % table for
spread programming.
PWD
-
Byte 14
Pin #
Name
Type
-
-
-
-
-
-
-
-
These Spread Spectrum
bits will program the
spread pecentage. It is
recommended to use ICS
Spread % table for
spread programming.
Byte 13
Pin #
Name
Type
Type
-
-
-
-
-
-
-
-
The decimal
representation of N Div
(8:0) + 8 is equal to VCO
divider value. Default at
power up = latch-in or
Byte 0 Rom table.
Byte 12
Pin #
Name
0
0
1
1
1
PWD
PWD
0
1
0
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