ICS952623 Datasheet, PDF (12/27 Pages) Integrated Circuit Systems – Programmable Timing Control Hub for Next Gen P4 processor

Integrated
Circuit
Systems, Inc.
ICS952623
Advance Information
I²C Table: Output Control Register
Byte 3
Pin #
Name
7,8,9,12,13,14,15,
Bit 7 _{18,19,20,37,38,}
PCI_Stop#
Bit 6
20
Bit 5
19
Bit 4
18
Bit 3
15
Bit 2
14
Bit 1
13
Bit 0
12
PCICLK6
PCICLK5
PCICLK4
PCICLK3
PCICLK2
PCICLK1
PCICLK0
Control Function
PCI_Stop# Control
0:all stoppable PCI
are stopped
Output Control
Output Control
Output Control
Output Control
Output Control
Output Control
Output Control
Type
RW
RW
RW
RW
RW
RW
RW
RW
0
Enable
Disable
Disable
Disable
Disable
Disable
Disable
Disable
1
Disable
Enable
Enable
Enable
Enable
Enable
Enable
Enable
PWD
1
1
1
1
1
1
1
1
I²C Table: Output Control Register
Byte 4
Pin #
Name
Bit 7
31
Bit 6
31
Bit 5
9
Bit 4
8
Bit 3
7
Bit 2
9
Bit 1
8
Bit 0
7
48MHz_USB
2x output drive
48MHz_USB
PCIF2
PCIF1
PCIF0
PCICLK_F2
PCICLK_F1
PCICLK_F0
Control Function
0=2x drive
Output Control
PCI FREE-RUN NING
CONTROL
Output Control
Output Control
Output Control
Type
RW
RW
RW
RW
RW
RW
RW
RW
0
1
2x drive
normal
Disable
FREE-RUN
FREE-RUN
FREE-RUN
Disable
Disable
Disable
Enable
STOPPABLE
STOPPABLE
STOPPABLE
Enable
Enable
Enable
PWD
0
1
0
0
0
1
1
1
I²C Table: Output Control Register
Byte 5
Pin #
Name
Bit 7
32
48MHZ_DOT
Bit 6
-
RESERVED
Bit 5
29
3V66_4/VCH
Select
Bit 4
29
3V66_4/VCH
Bit 3
27
3V66_3
Bit 2
26
3V66_2
Bit 1
23
3V66_1
Bit 0
22
3V66_0
Control Function
Output Control
RESERVED
Output Select
Output Control
Output Control
Output Control
Output Control
Output Control
Type
RW
`
RW
RW
RW
RW
RW
RW
0
Disable
-
3V66
Disable
Disable
Disable
Disable
Disable
1
Enable
-
VCH
Enable
Enable
Enable
Enable
Enable
PWD
1
0
0
1
1
1
1
1
0758—02/08/05
12