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ICS950223 Datasheet(PDF) 13 Page - Integrated Circuit Systems

Part # ICS950223
Description  Programmable Timing Control Hub for P4
PDF  24 Pages
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Manufacturer  ICST [Integrated Circuit Systems]
Direct Link  http://www.icst.com
Logo ICST - Integrated Circuit Systems

ICS950223 Datasheet(HTML) 13 Page - Integrated Circuit Systems

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13
Integrated
Circuit
Systems, Inc.
ICS950223
0496C—05/06/05
I
2C Table: VCO Frequency Control Register
Bit 7
N Div8
N Divider Bit 8
RW
-
-
X
Bit 6
M Div6
RW
-
-
X
Bit 5
M Div5
RW
-
-
X
Bit 4
M Div4
RW
-
-
X
Bit 3
M Div3
RW
-
-
X
Bit 2
M Div2
RW
-
-
X
Bit 1
M Div1
RW
-
-
X
Bit 0
M Div0
RW
-
-
X
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
-
-
1
Bit 6
Reserved
Reserved
R
-
-
0
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
1PWD
It is recommended to
use ICS Spread %
table for spread
programming.
-
-
-
-
Type
-
-
-
0
Byte 14
Pin #
Name
Control Function
-
-
-
-
Name
Control Function
1
1
0
-
-
-
These Spread
Spectrum bits will
program the spread
pecentage. It is
recommended to use
ICS Spread % table for
spread programming.
PWD
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.
Type
0
PWD
-
-
-
-
Byte 13
Pin #
Type
0
-
-
Name
Control Function
Byte 11
Pin #
-
-
-
1PWD
The decimal
representation of M Div
(6:0) +2 is equal to
reference divider value.
Default at power up =
latch-in or Byte 0 Rom
table.
-
-
-
-
Name
Control Function
Type
-
-
-
Byte 12
Pin #
-
-



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