ICS952801 Datasheet, PDF (14/22 Pages) Integrated Circuit Systems – Programmable Timing Control HubTM for K8TM processor

Integrated
Circuit
Systems, Inc.
I²C Table: Group Skew Control Register
Byte 18
Pin #
Name
Bit 7
-
Bit 6
-
Bit 5
-
Bit 4
-
Bit 3
-
Bit 2
-
Bit 1
-
Bit 0
-
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Control
Function
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
ICS952801
Advance Information
Type
0
RW
-
RW
-
RW
-
RW
-
RW
-
RW
-
RW
-
RW
-
1
PWD
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
I²C Table: Group Skew Control Register
Byte 19
Pin #
Name
Bit 7
-
Bit 6
-
Bit 5
-
Bit 4
-
Bit 3
-
Bit 2
-
Bit 1
-
Bit 0
-
ZCLKSkw1
ZCLKSkw0
Reserved
Reserved
AGPSkw1
AGPSkw0
Reserved
Reserved
Control
Function
CPU-ZCLK Skew
Control
Reserved
Reserved
CPU-AGP Skew
Control
Reserved
Reserved
Type
RW
RW
RW
RW
RW
RW
RW
RW
0
1
See Table 6: 4-Steps Skew
Programming Table
-
-
-
-
See Table 6: 4-Steps Skew
Programming Table
-
-
-
-
PWD
0
0
0
0
0
0
0
0
I²C Table: Group Skew Control Register
Byte 20
Pin #
Name
Bit 7
-
Bit 6
-
Bit 5
-
Bit 4
-
Bit 3
-
Bit 2
-
Bit 1
-
Bit 0
-
PCI_FSkw1
PCI_FSkw0
Reserved
Reserved
PCISkw1
PCISkw0
Reserved
Reserved
Control
Function
CPU-PCI_F Skew
Control
Reserved
Reserved
CPU-PCI Skew Control
Reserved
Reserved
Type
RW
RW
RW
RW
RW
RW
RW
RW
0
1
See Table 6: 4-Steps Skew
Programming Table
-
-
-
-
See Table 6: 4-Steps Skew
Programming Table
-
-
-
-
PWD
0
0
0
0
0
0
0
0
Table 6: 4-Steps Skew Programming Table
4 Step
0
1
LSB
0
0ps 250ps
-
1
500ps 750ps
-
MSB
-
-
-
0719—01/22/03
14