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ICS932S422C Datasheet(PDF) 13 Page - Integrated Circuit Systems

Part # ICS932S422C
Description  PCIe Gen 2 main Clock for Intel-based Servers
PDF  21 Pages
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Manufacturer  ICST [Integrated Circuit Systems]
Direct Link  http://www.icst.com
Logo ICST - Integrated Circuit Systems

ICS932S422C Datasheet(HTML) 13 Page - Integrated Circuit Systems

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13
Integrated
Circuit
Systems, Inc.
ICS932S422C
1412A—12/10/07
SMBus Table: Byte Count Register
Pin #
Name
Control Function
Type
0
1
PWD
Bit 7
BC7
RW
0
Bit 6
BC6
RW
0
Bit 5
BC5
RW
0
Bit 4
BC4
RW
0
Bit 3
BC3
RW
1
Bit 2
BC2
RW
0
Bit 1
BC1
RW
0
Bit 0
BC0
RW
0
SMBus Table: Device ID Register
Pin #
Name
Control Function
Type
0
1
PWD
Bit 7
DID7
R
-
-
0
Bit 6
DID6
R
-
-
0
Bit 5
DID5
R
-
-
0
Bit 4
DID4
R
-
-
0
Bit 3
DID3
R
-
-
1
Bit 2
DID2
R
-
-
1
Bit 1
DID1
R
-
-
0
Bit 0
DID0
R
-
-
0
SMBus Table: M/N Programming & Control Register
Pin #
Name
Control Function
Type
0
1
PWD
Bit 7
M/N_EN
CPU and SRC
M/N Programming
RW
Disable
Enable
0
Bit 6
0
Bit 5
Spread Spectrum
Enable
Spread Off/On
RW
Spread Off
Spread On
0
Bit 4
Spread Spectrum
Enable
Spread Off/On
RW
Spread Off
Spread On
0
Bit 3
SRC Alternate
Frequency (96% of
Nominal)
Set SRC = 96 MHz and
PCI = 32 MHz
Only active if
Byte 10, bit 2 = 1
RW
Normal
Alternate
Frequency
0
Bit 2
CPU Alternate
Frequency (96% of
Nominal) Only active if
latched frequency is
166 MHz or 333 MHz.
Set alternate CPU
frequency:
166 MHz to 160 MHz
333 MHz to 320 MHz
RW
Normal
Alternate
Frequency
0
Bit 1
REF1 Drive Strength
1X or 2X
RW
1
Bit 0
REF0 Drive Strength
1X or 2X
RW
1
Byte Count Programming
b(7:0)
Writing to this register will
configure how many bytes will
be read back, default is 8
bytes.
(0 to 7)
-
-
-
-
-
-
Byte 8
Byte 9
-
-
55
-
-
CPU
SRC
CPU
54
See REF Drive Strength
Functionality Table
SRC, PCI
Device ID
(0C hex)
RESERVED
Byte 10



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