W210H Datasheet, PDF (8/14 Pages) Cypress Semiconductor – Spread Spectrum FTG for VIA K7 Chipset

W210
Table 6. Additional Frequency Selections through Serial Data Interface Data Bytes
Input Conditions
Output Frequency
Data Byte 0, Bit 3 = 1
Bit 2
SEL_4
Bit 1
SEL_3
Bit 6
SEL_2
Bit 5
SEL_1
Bit 4
SEL_0
CPU
PCI
Spread Spectrum
1
1
1
1
1
133.3
33.3
±0.5%
1
1
1
1
0
75
37.5
±0.5%
1
1
1
0
1
100.2
33.3
±0.5%
1
1
1
0
0
66.8
33.4
±0.5%
1
1
0
1
1
79
39.5
OFF
1
1
0
1
0
110
36.7
OFF
1
1
0
0
1
115
38.3
OFF
1
1
0
0
0
120
30
OFF
1
0
1
1
1
133.3
33.3
OFF
1
0
1
1
0
83.3
27.7
OFF
1
0
1
0
1
100.2
33.3
OFF
1
0
1
0
0
66.8
33.4
OFF
1
0
0
1
1
124
31.0
OFF
1
0
0
1
0
129
32.3
OFF
1
0
0
0
1
138
34.5
OFF
1
0
0
0
0
143
35.8
OFF
0
1
1
1
1
85
28.3
OFF
0
1
1
1
0
87.5
29.2
OFF
0
1
1
0
1
90
30
OFF
0
1
1
0
0
92.5
30.8
OFF
0
1
0
1
1
95
31.7
OFF
0
1
0
1
0
147
36.8
OFF
0
1
0
0
1
152
30.4
OFF
0
1
0
0
0
154
30.8
OFF
0
0
1
1
1
157
31.4
OFF
0
0
1
1
0
159
31.8
OFF
0
0
1
0
1
162
32.4
OFF
0
0
1
0
0
166
33.2
OFF
0
0
0
1
1
171
34.2
OFF
0
0
0
1
0
180
36
OFF
0
0
0
0
1
190
38
OFF
0
0
0
0
0
200
40
OFF
8