ICS954201 Datasheet, PDF (11/15 Pages) Integrated Circuit Systems – Programmable Timing Control Hub™ for Mobile P4™ Systems

Integrated
Circuit
Systems, Inc.
ICS954201
SMBus Table: Output Control Register
Byte 0
Pin #
Name
Bit 7
-
CPUCLK2_ITP/SRCCLK7 Enable
Bit 6
-
Bit 5
-
Bit 4
-
Bit 3
-
Bit 2
-
Bit 1
-
Bit 0
-
SRCCLK6 Enable
SRCCLK5 Enable
SRCCLK4 Enable
SRCCLK3 Enable
SRCCLK2 Enable
SRCCLK1 Enable
SRCCLK0 Enable
Control Function
Output Enable
Output Enable
Output Enable
Output Enable
Output Enable
Output Enable
Output Enable
Output Enable
SMBus Table: Spreading and Device Behavior Control Register
Byte 1
Pin #
Name
Control Function
Bit 7
PCI_F0 Enable
Output Enable
Bit 6
DOT_96MHz Enable
Output Enable
Bit 5
USB_48MHz Enable
Output Enable
Bit 4
REFOUT Enable
Output Enable
Bit 3
RESERVED
Bit 2
CPUCLK1
Output Enable
Bit 1
CPUCLK0
Output Enable
Bit 0
Spread Spectrum Mode
Spread Off
SMBus Table: Output Control Register
Byte 2
Pin #
Name
Bit 7
PCICLK5
Bit 6
PCICLK4
Bit 5
Bit 4
PCICLK3
PCICLK2
Bit 3
Bit 2
Bit 1
Bit 0
PCI_F1 Enable
Control Function
Output Enable
Output Enable
Output Enable
Output Enable
RESERVED
RESERVED
RESERVED
Output Enable
Type
RW
RW
RW
RW
RW
RW
RW
RW
0
DISABLE
DISABLE
DISABLE
DISABLE
DISABLE
DISABLE
DISABLE
DISABLE
1
ENABLE
ENABLE
ENABLE
ENABLE
ENABLE
ENABLE
ENABLE
ENABLE
Type
RW
RW
RW
RW
0
Disable
Disable
Disable
Disable
1
Enable
Enable
Enable
Enable
RW Disable
RW Disable
RW SPREAD OFF
Enable
Enable
SPREAD
ON
Type
RW
RW
RW
RW
0
Disable
Disable
Disable
Disable
1
Enable
Enable
Enable
Enable
RW Disable
Enable
PWD
1
1
1
1
1
1
1
1
PWD
1
1
1
1
1
1
1
0
PWD
1
1
1
1
1
1
1
1
0819G—12/06/04
11