ICS952703 Datasheet, PDF (7/17 Pages) Integrated Circuit Systems – Programmable Timing Control Hub for K7 System

Integrated
Circuit
Systems, Inc.
ICS952703
Preliminary Product Preview
I²C Table: Output Skew Control Register
Byte 4
Pin #
Name
Bit 7
-
Bit 6
-
Bit 5
-
Bit 4
-
Bit 3
-
Bit 2
-
Bit 1
-
Bit 0
-
PCISkw3
PCISkw2
PCISkw1
PCISkw0
AGPSkw3
AGPSkw2
AGPSkw1
AGPSkw0
Control Function Type
0
1
RW 0000:0 0100:150 1000:300 1100:450
CPU-PCI 7 Step Skew RW 0001:N/A 0101:N/A 1001:N/A 1101:600
Control (ps)
RW 0010:N/A 0110:N/A 1010:N/A 1110:750
RW 0011:N/A 0111:N/A 1011:N/A 1111:900
RW 0000:0 0100:150 1000:300 1100:450
CPU-AGP 7 Step Skew RW 0001:N/A 0101:N/A 1001:N/A 1101:600
Control (ps)
RW 0010:N/A 0110:N/A 1010:N/A 1110:750
RW 0011:N/A 0111:N/A 1011:N/A 1111:900
PWD
X
X
X
X
X
X
X
X
I²C Table: Output Divider Control Register
Byte 5
Pin #
Name
Bit 7
-
Bit 6
-
Bit 5
-
Bit 4
-
Bit 3
-
Bit 2
-
Bit 1
-
Bit 0
-
ZCLKDiv3
ZCLKDiv2
ZCLKDiv1
ZCLKDiv0
AGPDiv3
AGPDiv2
AGPDiv1
AGPDiv0
Control Function
ZCLK Divider Ratio
Programmaing Bits
AGP Divider Ratio
Programmaing Bits
Type
0
1
RW 0000:/2 0100:/4 1000:/8 1100:/16
RW 0001:/3 0101:/6 1001:/12 1101:/24
RW 0010:/5 0110:/10 1010:/20 1110:/40
RW 0011:/7 0111:/14 1011:/28 1111:/56
RW 0000:/2 0100:/4 1000:/8 1100:/16
RW 0001:/3 0101:/6 1001:/12 1101:/24
RW 0010:/5 0110:/10 1010:/20 1110:/40
RW 0011:/7 0111:/14 1011:/28 1111:/56
PWD
X
X
X
X
X
X
X
X
I²C Table: Output Drive Control Register
Byte 6
Pin #
Name
Bit 7
-
Bit 6
-
Bit 5
-
Bit 4
-
Bit 3
-
Bit 2
-
Bit 1
-
Bit 0
-
PCIStr1
PCIStr0
PCIStr1
PCIStr0
PCIStr1
PCIStr0
AGPStr1
AGPStr0
Control Function Type
PCICLKF (1:0)
RW
Strength Control
RW
PCICLK (2:0) Strength ^RW
Control
RW
PCICLK (5:3) Strength ^RW
Control
RW
AGPCLK Strength ^RW
Control
RW
0
00 = 0.63X
01 = 0.75X
00 = 0.63X
01 = 0.75X
00 = 0.63X
01 = 0.75X
00 = 0.70X
01 = 0.80X
1
10 = 0.88X
11 = 1.00X
10 = 0.88X
11 = 1.00X
10 = 0.88X
11 = 1.00X
10 = 0.90X
11 = 1.00X
PWD
1
1
1
1
1
1
1
1
I²C Table: Reserved Register
Byte 7
Pin #
Name
Control Function Type
0
Bit 7
-
Bit 6
-
Bit 5
-
Bit 4
-
Bit 3
-
Bit 2
-
Bit 1
-
Bit 0
-
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
RW
-
Reserved
RW
-
Reserved
RW
-
Reserved
RW
-
Reserved
RW
-
Reserved
RW
-
Reserved
RW
-
Reserved
RW
-
1
PWD
-
1
-
1
-
1
-
1
-
1
-
1
-
1
-
1
0813B—05/17/05
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