W230 Cypress Semiconductor Corp., W230 Datasheet - Page 8

• Manufacturer Part Number: W230
• Description: Spread Spectrum FTG For Via K7 Chipset
• Manufacturer: Cypress Semiconductor Corp.

Table 6. Additional Frequency Selections through Serial Data Interface Data Bytes
SEL_4
Bit 2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
SEL_3
Bit 1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
Data Byte 0, Bit 3 = 1
Input Conditions
SEL_2
Bit 6
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
SEL_1
Bit 5
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
SEL_0
Bit 4
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
8
100.0
100.0
100.0
133.3
133.3
133.3
102.0
104.0
106.0
107.0
108.0
109.0
110.0
111.0
112.0
113.0
114.0
115.0
116.0
118.0
120.0
124.0
127.0
130.0
136.0
140.0
145.0
150.0
155.0
160.0
166.0
CPU
95.0
Output Frequency
33.3
33.3
33.3
31.7
33.3
33.3
33.3
34.0
34.6
35.3
35.6
36.0
36.3
36.6
37.0
37.3
37.6
38.0
38.3
38.6
39.3
40.0
31.0
31.7
32.5
34.0
35.0
36.2
37.5
38.7
41.6
PCI
40
Spread Spectrum
±0.25%
±0.25%
–0.5%
[
–0.5%
[
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
0.5%
0.5%
W230