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ICS950223 Datasheet(PDF) 11 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) 11 Page - Integrated Circuit Systems

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11
Integrated
Circuit
Systems, Inc.
ICS950223
0496C—05/06/05
I
2C Table: Output Control Register
Bit 7
24_48MHz
Output Control
RW
Disable
Enable
1
Bit 6
48MHz
Output Control
RW
Disable
Enable
1
Bit 5
GR_EN
Geashift Reset Enable
RW
ON
OFF
0
Bit 4
24_48 FS Source
24_48 Frequency H/W
/ IIC Select
RW
Latch Inputs
IIC
0
Bit 3
FS 24_48
Sel24_48
RW
24MHz
48MHz
0
Bit 2
PCICLK2
Output Control
RW
Disable
Enable
1
Bit 1
PCICLK1
Output Control
RW
Disable
Enable
1
Bit 0
PCICLK0
Output Control
RW
Disable
Enable
1
I
2C Table: Output Control Register
Bit 7
66_48 FS Source
66_48 Frequency H/W
/ IIC Select
RW
Latch Inputs
IIC
0
Bit 6
FS 66_48#
Sel66_48#
RW
48MHz
66.66MHz
0
Bit 5
3V66_0
Output Control
RW
Disable
Enable
1
Bit 4
3V66_1
Output Control
RW
Disable
Enable
1
Bit 3
REF0
Output Control
RW
Disable
Enable
1
Bit 2
REF1
Output Control
RW
Disable
Enable
1
Bit 1
3V66_3
Output Control
RW
Disable
Enable
1
Bit 0
3V66_2
Output Control
RW
Disable
Enable
1
I
2C Table: 3V66 & PCICLK Asynchronous Frequency Control Register
Bit 7
N PLL2 Div0
RW
-
-
X
Bit 6
N PLL2 Div1
RW
-
-
X
Bit 5
N PLL2 Div2
RW
-
-
X
Bit 4
N PLL2 Div3
RW
-
-
X
Bit 3
N PLL2 Div4
RW
-
-
X
Bit 2
N PLL2 Div5
RW
-
-
X
Bit 1
N PLL2 Div6
RW
-
-
X
Bit 0
N PLL2 Div7
RW
-
-
X
I
2C Table: Read Back Register
Bit 7
WDHRB
WD Hard Alarm Status
Read back
R-
-
X
Bit 6
SEL48_24RB
Sel48_24# Read Back
R
-
-
X
Bit 5
SEL66_48RB
Sel66_48# Read Back
R
-
X
Bit 4
FS4RB
FS4 Read back
R
-
-
X
Bit 3
FS3RB
FS3 Read back
R
-
-
X
Bit 2
FS2RB
FS2 Read back
R
-
-
X
Bit 1
FS1RB
FS1 Read back
R
-
-
X
Bit 0
FS0RB
FS0 Read back
R
-
-
X
PWD
The decimal
representation of N
PLL2 Div (0:7) + 8 is
equal to VCO divider
value for PLL2.
-
-
-
Name
Control Function
Type
0
-
8
7
6
Byte 4
Pin #
Type
0
1
PWD
Control Function
Control Function
Type
0
1
01
PWD
1
PWD
23
Control Function
Byte 3
Pin #
Name
22
-
-
-
Name
-
-
31
30
48
1
27
28
-
Byte 5
Pin #
-
-
-
Byte 6
Pin #
Name
Type
-
-
-
-
-
-
-
-



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