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ICS932S401 Datasheet(PDF) 13 Page - Renesas Technology Corp

Part # ICS932S401
Description  Programmable Timing Control Hub for Intel-based Servers
PDF  24 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

ICS932S401 Datasheet(HTML) 13 Page - Renesas Technology Corp

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13
Integrated
Circuit
Systems, Inc.
ICS932S401
0921G—08/24/09
SMBus Table: CPU and SRC Stop and Power Down Mode Drive Control Register
Pin #
Name
Control Function
Type
0
1
PWD
Bit 7
CPUCLK3 PD Drive
Drive Mode in PD
RW
Driven
Hi-Z
0
Bit 6
CPUCLK2 PD Drive
Drive Mode in PD
RW
Driven
Hi-Z
0
Bit 5
CPUCLK1 PD Drive
Drive mode in PD
RW
Driven
Hi-Z
0
Bit 4
CPUCLK0 PD Drive
Drive mode in PD
RW
Driven
Hi-Z
0
Bit 3
CPUCLK3 Stop En
RW
Free-Running
Stoppable
1
Bit 2
CPUCLK2 Stop En
RW
Free-Running
Stoppable
1
Bit 1
CPUCLK1 Stop En
RW
Free-Running
Stoppable
1
Bit 0
CPUCLK0 Stop En
RW
Free-Running
Stoppable
1
SMBus Table: Output and Spread Spectrum Control Register
Byte 5
Pin #
Name
Control Function
Type
0
1
PWD
Bit 7
0
Bit 6
SRC Stop Drive Mode
Driven in STOP
RW
Driven
Hi-Z
0
Bit 5
SRC PD Drive Mode
Driven in PD
RW
Driven
Hi-Z
0
Bit 4
0
Bit 3
CPUCLK3 Stop Drive
Drive Mode in Stop
RW
Driven
Hi-Z
0
Bit 2
CPUCLK2 Stop Drive
Drive Mode in Stop
RW
Driven
Hi-Z
0
Bit 1
CPUCLK1 Stop Drive
Drive Mode in Stop
RW
Driven
Hi-Z
0
Bit 0
CPUCLK0 Stop Drive
Drive Mode in Stop
RW
Driven
Hi-Z
0
SMBus Table: Device ID Register
Pin #
Name
Control Function
Type
0
1
PWD
Bit 7
Test Mode Selection
Test Mode Selection
RW
Hi-Z
REF/N
0
Bit 6
Test Clock Mode Entry
Test Mode
RW
Disable
Enable
0
Bit 5
0
Bit 4
REF Drive Strength
1X or 2X
RW
1X
2X
1
Bit 3
PCI_STOP Control
Stop non-free running PC and SRC
clocks.
RW
Stop
Run
1
Bit 2
FS_C
FS_C readback
RLatch
Bit 1
FS_B
FS_B readback
RLatch
Bit 0
FS_A
FS_A readback
RLatch
SMBus Table: Vendor & Revision ID Register
Pin #
Name
Control Function
Type
0
1
PWD
Bit 7
RID3
R
-
-
X
Bit 6
RID2
R
-
-
X
Bit 5
RID1
R
-
-
X
Bit 4
RID0
R
-
-
X
Bit 3
VID3
R
-
-
0
Bit 2
VID2
R
-
-
0
Bit 1
VID1
R
-
-
0
Bit 0
VID0
R
-
-
1
RESERVED
RESERVED
See 932S401 Functionality
Table
Byte 7
Byte 4
SRC
SRC
36,37
39,40
42,43
Free-Running Control, Default: not
affected by CPU_STOP
45,46
RESERVED
42,43
-
-
39,40
-
PCI, SRC
54,55
-
-
-
36,37
39,40
36,37
Byte 6
45,46
VENDOR ID
-
-
-
42,43
45,46
-
REVISION ID
-
-
-
-



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