ICS950223 Datasheet, PDF (8/24 Pages) Integrated Circuit Systems – Programmable Timing Control Hub for P4

Integrated
Circuit
Systems, Inc.
Table1: QuadRom Frequency Selection Table Continued
Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 CPU
X
X FS4 FS3 FS2 FS1 FS0 MHz
1
0
0
0
0
0
0 66.67
1
0
0
0
0
0
1 68.00
1
0
0
0
0
1
0 70.00
1
0
0
0
0
1
1 72.00
1
0
0
0
1
0
0 74.00
1
0
0
0
1
0
1 _76.00
1
0
0
0
1
1
0 _78.00
1
0
0
0
1
1
1 80.00
1
0
0
1
0
0
0 82.00
1
0
0
1
0
0
1 84.00
1
0
0
1
0
1
0 86.00
1
0
0
1
0
1
1 88.00
1
0
0
1
1
0
0 90.00
1
0
0
1
1
0
1 92.00
1
0
0
1
1
1
0 94.00
1
0
0
1
1
1
1 _96.00
1
0
1
0
0
0
0 _98.00
1
0
1
0
0
0
1 100.00
1
0
1
0
0
1
0 102.00
1
0
1
0
0
1
1 104.00
1
0
1
0
1
0
0 106.00
1
0
1
0
1
0
1 108.00
1
0
1
0
1
1
0 110.00
1
0
1
0
1
1
1 112.00
1
0
1
1
0
0
0 166.67
1
0
1
1
0
0
1 _167.00
1
0
1
1
0
1
0 _168.00
1
0
1
1
0
1
1 169.00
1
0
1
1
1
0
0 170.00
1
0
1
1
1
0
1 171.00
1
0
1
1
1
1
0 172.00
1
0
1
1
1
1
1 _173.00
3V66
MHz
66.67
68.00
70.00
72.00
74.00
76.00
78.00
80.00
82.00
84.00
86.00
88.00
90.00
92.00
94.00
96.00
98.00
100.00
102.00
104.00
106.00
108.00
110.00
112.00
66.67
66.80
67.20
67.60
68.00
68.40
68.80
69.20
PCI
MHz
33.34
34.00
35.00
36.00
37.00
38.00
39.00
40.00
41.00
42.00
43.00
44.00
45.00
46.00
47.00
48.00
49.00
50.00
51.00
52.00
53.00
54.00
55.00
56.00
33.33
33.40
33.60
33.80
34.00
34.20
34.40
34.60
ICS950223
0496C—05/06/05
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