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ICS950405 数据表(PDF) 9 Page - Integrated Circuit Systems

部件名 ICS950405
功能描述  AMD - K8 System Clock Chip
PDF  16 Pages
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制造商  ICST [Integrated Circuit Systems]
网页  http://www.icst.com
标志 ICST - Integrated Circuit Systems

ICS950405 数据表(HTML) 9 Page - Integrated Circuit Systems

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9
ICS950405
0802F—04/22/05
I
2C Table: VCO Frequency Control Register
Bit 7
N Div7
RW
X
Bit 6
N Div6
RW
X
Bit 5
N Div5
RW
X
Bit 4
N Div4
RW
X
Bit 3
N Div3
RW
X
Bit 2
N Div2
RW
X
Bit 1
N Div1
RW
X
Bit 0
N Div0
RW
X
I
2C Table: Spread Spectrum Control Register
Bit 7
SSP7
RW
X
Bit 6
SSP6
RW
X
Bit 5
SSP5
RW
X
Bit 4
SSP4
RW
X
Bit 3
SSP3
RW
X
Bit 2
SSP2
RW
X
Bit 1
SSP1
RW
X
Bit 0
SSP0
RW
X
I
2C Table: Spread Spectrum Control Register
Bit 7
Reserved
Reserved
R
0
Bit 6
SSP14
RW
X
Bit 5
SSP13
RW
X
Bit 4
SSP12
RW
X
Bit 3
SSP11
RW
X
Bit 2
SSP10
RW
X
Bit 1
SSP9
RW
X
Bit 0
SSP8
RW
X
PWD
Byte 12
Pin #
Name
Control Function
-
N Divider Programming
bit (7:0)
The decimal representation of M and N
Divier in Byte 11 and 12 will configure the
VCO frequency. Default at power up =
latch-in or Byte 0 Rom table.
VCO Frequency = 14.318 x [NDiv(9:0)+8]
/ [MDiv(5:0)+2]
-
-
-
-
-
-
-
PWD
Byte 13
Pin #
Name
Control Function
PWD
Byte 14
Pin #
Name
Control Function
-
-
0
-
-
Type
0
1
-
Spread Spectrum
Programming b(7:0)
These Spread Spectrum bits in Byte 13
and 14 will program the spread
pecentage. It is recommended to use
ICS Spread % table for spread
programming.
-
1
Type
0
1
-
Spread Spectrum
Programming b(14:8)
These Spread Spectrum bits in Byte 13
and 14 will program the spread
pecentage. It is recommended to use
ICS Spread % table for spread
programming.
-
-
-
-
-
-
-
-
-
Type
-
-



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