W83194BR-97 Datasheet, PDF (6/11 Pages) Winbond – 200MHZ CLOCK FOR CAMINO CHIPSET

W83194BR-97
PRELIMINARY
5.1 Register 0: CPU Frequency Select Register
Bit @PowerUp
Pin
Description
7
0
6
0
5
0
4
0
-
SSEL3 ( Frequency table selection by software via I²C)
-
SSEL2 ( Frequency table selection by software via I²C)
-
SSEL1 ( Frequency table selection by software via I²C)
-
SSEL0 ( Frequency table selection by software via I²C)
3
0
2
0
-
0 = Selection by hardware
1 = Selection by software I²C - Bit (0,2, 6:4)
-
SSEL4 (Frequency table selection by software via I²C )
1
0
-
0 = Normal
0
0
1 = Spread Spectrum enabled
-
SSEL5 ( Frequency table selection by software via I²C)
5.2 Register 1 : CPU Clock Register (1 = Active, 0 = Inactive)
Bit @PowerUp Pin
Description
7
1
40 CPUCLK0(Active / Inactive)
6
1
38 CPUCLK1(Active / Inactive)
5
1
37 CPUCLK2(Active / Inactive)
4
1
42 CPU/2(Active / Inactive)
3
1
47 IOAPIC0 (Active / Inactive)
2
1
46 IOAPIC1 (Active / Inactive)
1
1
2 REF1 (Active / Inactive)
0
1
3 REF0 (Active / Inactive)
5.3 Register 2: PCI Clock Register (1 = Active, 0 = Inactive)
Bit @PowerUp Pin
Description
7
1
18 PCICLK7 (Active / Inactive)
6
1
17 PCICLK6 (Active / Inactive)
5
1
15 PCICLK5 (Active / Inactive)
4
1
14 PCICLK4 (Active / Inactive)
3
1
12 PCICLK3 (Active / Inactive)
2
1
11 PCICLK2 (Active / Inactive)
1
1
9 PCICLK1 (Active / Inactive)
0
1
8 PCICLK_F (Active / Inactive)
Publication Release Date: Dec. 1999
-6-
Revision 0.35