
4
ICS950812
0542G—08/21/03
Frequency Select Table 2
Frequency Select Table 1
66MHz_OU
T (2:0)
66MHz_IN
FS
2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
FS
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
FS
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
3V66 (4:2)
3V66 _5
66.66
100.00
200.00
133.33
66.66
100.00
200.00
133.33
70.00
105.00
Tristate
140.00
70.00
105.00
Tristate
140.00
73.32
110.00
Test/2
146.60
73.32
110.00
Test/2
66.66
66.66
66.66
66.66
66.66
66.66
66.66
66.66
70.00
70.00
Tristate
70.00
70.00
70.00
Tristate
70.00
73.32
73.32
Test/4
73.32
73.32
73.32
Test/4
66.66
66.66
66.66
66.66
66MHz_IN
66MHz_IN
66MHz_IN
66MHz_IN
70.00
70.00
Tristate
70.00
66MHz_IN
66MHz_IN
Tristate
66MHz_IN
73.32
73.32
Test/4
73.32
66MHz_IN
66MHz_IN
Test/4
66.66
66.66
66.66
66.66
Input
Input
Input
Input
70.00
70.00
Tristate
70.00
Input
Input
Tristate
Input
73.32
73.32
Test/4
73.32
Input
Input
Test/4
33.33
33.33
33.33
33.33
14.318
14.318
14.318
14.318
14.318
14.318
14.318
14.318
14.318
14.318
Tristate
14.318
14.318
14.318
Tristate
14.318
14.318
14.318
Test
14.318
14.318
14.318
Test
48.008
48.008
48.008
48.008
48.008
48.008
48.008
48.008
48.008
48.008
Tristate
48.008
48.008
48.008
Tristate
48.008
48.008
48.008
Test/2
48.008
48.008
48.008
Test/2
66MHz_IN/2
66MHz_IN/2
66MHz_IN/2
66MHz_IN/2
35.00
35.00
Tristate
35.00
66MHz_IN/2
66MHz_IN/2
Tristate
66MHz_IN/2
36.66
36.66
Test/8
36.66
66MHz_IN/2
66MHz_IN/2
Test/8
Tristate
Tristate
5% Overclocking
Test
Test
1
1
1
146.60
73.32
66MHz_IN
Input
66MHz_IN/2
14.318
48.008
10% Overclocking
10% Overclocking
10% Overclocking
Standard Clocking
Standard Clocking
5% Overclocking
5% Overclocking
110
(See table 2)
111
(See table 2)
REF MHz
USB/DOT
MHz
Clocking Mode
Freq Sel
CPU MHz
3V66 MHz
FS(5:3)
PCI MHz
From
000
to
101
(See table 2)
FS
5
FS
4
FS
3
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
+/-0.35%, Center Spread
0 to -1.5%, Down Spread
+/-0.5%, Center Spread
+/-0.75%, Center Spread
+/-0.35%, Center Spread
10% Overclocking
Clocking Mode
No Spread (default)
or +/-0.4%
0 to -0.5%, Down Spread
0 to -1.0%, Down Spread
Standard Clocking
Standard Clocking
Standard Clocking
Standard Clocking
CPU, 3V66, 66MHz_OUT,
66MHz_IN, PCI
5% Overclocking
Freq Sel
Standard Clocking
Standard Clocking
Note:
To enable spread, Byte 0 Bit 7 must be set to 1.