w83194r-630a Winbond Electronics Corp America, w83194r-630a Datasheet - Page 7

• Manufacturer Part Number: w83194r-630a
• Description: 166mhz Clock For Sis Chipset
• Manufacturer: Winbond Electronics Corp America

Frequency table by I2C
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
8.2.1 Register 0: CPU Frequency Select Register (default = 0)
SSEL3
Bit
7
6
5
4
3
2
1
0
@PowerUp
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
SSEL2
0
0
0
0
0
0
0
0
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
SSEL1
Pin
-
-
-
-
-
-
-
-
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
SSEL0
0 = ±0.5% Center type Spread Spectrum Modulation
1 = ±0.75% Center type Spread Spectrum Modulation
SSEL2 (for frequency table selection by software via I
SSEL1 (for frequency table selection by software via I
SSEL0 (for frequency table selection by software via I
0 = Selection by hardware
1 = Selection by software I
SSEL3 (for frequency table selection by software via I
0 = Normal
1 = Spread Spectrum enabled
0 = Running
1 = Tristate all outputs
66.8
100.2
83.3
133.6
75
100.2
100.2
133.6
66.8
97
97
95.2
140
112
96.2
166
- 7 -
(MHz)
CPU
100.2
100.2
124.9
100.2
75
133.6
150.3
133.6
66.8
97
129.3
95.2
140
112
96.2
166
SDRAM
(MHz)
Description
2
C - Bit 2, 6:4
Publication Release Date: Nov. 1999
33.4
33.4
33.2
33.4
37.5
33.4
33.4
33.4
33.4
32.3
32.3
31.7
35
37.3
32.1
33.3
PCI (MHz)
W83194R-630A
PRELIMINARY
REF (MHz)
Revision 0.65
IOAPIC
14.318
14.318
14.318
14.318
14.318
14.318
14.318
14.318
14.318
14.318
14.318
14.318
14.318
14.318
14.318
14.318
2
2
2
2
C)
C)
C)
C)