w83195bg-202 Winbond Electronics Corp America, w83195bg-202 Datasheet - Page 17

• Manufacturer Part Number: w83195bg-202
• Description: Clock For Via Chipsets
• Manufacturer: Winbond Electronics Corp America

Register 14: Control (Default: 10h), continued
7.16 Register 15: SST Control (Default: E9h)
7.17 Register 16: Skew Control (Default: E0h)
BIT
BIT
BIT
7
6
5
4
3
2
1
0
5
4
3
2
1
0
7
6
5
4
3
2
1
0
INV_PCIEX
CSKEW [2]
CSKEW [1]
CSKEW [0]
PSKEW [2]
PSKEW [1]
PSKEW [0]
ASKEW [2]
ASKEW [1]
ASKEW [0]
SPCNT [5]
SPCNT [4]
SPCNT [3]
SPCNT [2]
SPCNT [1]
SPCNT [0]
Reserved
INV_CPU
INV_AGP
Reserved
SPSP1
SPSP0
NAME
NAME
NAME
CLOCK GEN. FOR AMD K8 SYSTEM SERIES CHIPSET
PWD
PWD
PWD
1
1
1
0
1
0
0
1
1
1
1
0
0
1
0
0
0
1
0
0
0
0
Invert the PCIEX phase, 0: Default, 1: Inverse
Reserved
CPUT1 to CPUT0 skew control, Skew resolution is 300ps
The decision of skew direction is same as CSKEW<2:0> setting
CPU1 to PCI skew control, Skew resolution is 300ps
The decision of skew direction is same as PSKEW [2:0] setting
Invert the CPU phase, 0: Default, 1: Inverse
Invert the CPU phase, 0: Default, 1: Inverse
Reserved
Spread Spectrum type select.
00: Down
01: Down
10: Center +/- 0.5%
11: Center +/- 0.25%
CPU1 to AGP skew control, Skew resolution is 300ps
The decision of skew direction is same as ASKEW<2:0> setting
Spread Spectrum Programmable time, the resolution is 280ns.
Default period is 11.8us
0.5%
1%
W83195BR-202/W83195BG-202
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DESCRIPTION
DESCRIPTION
DESCRIPTION
Publication Release Date: Apr. 2006
Revision 0.6
TYPE
TYPE
TYPE
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W