W83194BR-730_05 Datasheet, PDF (12/16 Pages) Winbond – 166MHZ CLOCK FOR SIS CHIPSET

W83194BR-730
6.10 Register 9: Spread Spectrum Register
BIT @POWERUP PIN
DESCRIPTION
7
0
- Spread spectrum up count 3
6
0
- Spread spectrum up count 2
5
0
- Spread spectrum up count 1
4
0
- Spread spectrum up count 0
3
0
- Spread spectrum down count 3
2
0
- Spread spectrum down count 2
1
0
- Spread spectrum down count 1
0
0
- Spread spectrum down count 0
6.11 Register 10: Divisor Register
BIT @POWERUP PIN
DESCRIPTION
0: use frequency table
7
0
- 1: use M/N register to program frequency
The equation is VCO freq. = 14.318MHz * (N+4)/ M
6
X
- Ratio SEL3 (See ratio selection table)
5
X
- Ratio SEL2 (See ratio selection table)
4
X
- Ratio SEL1 (See ratio selection table)
3
X
- Ratio SEL0 (See ratio selection table)
2
X
- AGP Ratio SEL2 (See ratio selection table1)
1
X
- AGP Ratio SEL1 (See ratio selection table1)
0
X
- AGP Ratio SEL0 (See ratio selection table1)
6.12 Register 11: Winbond Chip ID Register (Read Only)
BIT @POWERUP PIN
7
0
- Winbond Chip ID
6
0
- Winbond Chip ID
5
0
- Winbond Chip ID
4
0
- Winbond Chip ID
3
0
- Winbond Chip ID
2
1
- Winbond Chip ID
1
0
- Winbond Chip ID
0
1
- Winbond Chip ID
DESCRIPTION
- 12 -