ics950402 Integrated Device Technology, ics950402 Datasheet - Page 10

• Manufacturer Part Number: ics950402
• Description: Amd - K8 System Clock Chip
• Manufacturer: Integrated Device Technology

ICS950402
0700B—04/30/04
I
Table 2: CPU, HTT & PCI Divider Ratio Combination Table
I
I
2
2
2
C Table: Output Divider Control Register
C Table: Output Divider Control Register
C Table: Group Skew Control Register
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Byte 16
Byte 17
Byte 18
LSB
Bit
00
01
10
11
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Pin #
Pin #
Pin #
Address
0000
0001
0010
0011
00
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
PCI DIV3
PCI DIV2
PCI DIV1
PCI DIV0
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
CPUINV
PCIDiv3
PCIDiv2
PCIDiv1
PCIDiv0
HTTINV
Name
Name
Name
Div
12
20
28
PCI10/HTTCLK3 divider
8
PCI divider ratio can be
ratio can be configured
configured via these 4
CPU Phase Invert
HTT Phase Invert
bits individually.
via these 4 bits
Function
Reserved
Reserved
Reserved
Reserved
Function
Reserved
Reserved
Function
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Control
Control
Control
10
Address
0100
0101
0110
0111
Divider (3:2)
01
Div
10
14
4
6
Type
Type
Type
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
Address
1000
1001
1010
1011
10
See Table 2: Divider Ratio
See Table 2: Divider Ratio
Default
Default
Combination Table
Combination Table
0
0
0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Div
12
20
28
8
Inverse
Inverse
1
1
1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Address
1100
1101
1110
1111
11
PWD
PWD
PWD
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
MSB
Div
10
14
4
6