CY28349B Datasheet, PDF (12/20 Pages) Cypress Semiconductor – FTG for Intel Pentium 4 CPU and Chipsets

CY28349B
Data Byte 17
Bit
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Pin#
–
–
–
–
–
–
–
–
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Name
Table 4. Frequency Selection Table
Input Conditions
FS4
FS3
FS2
FS1
SEL4 SEL3 SEL2 SEL1
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
1
0
0
1
0
0
0
1
0
0
0
1
1
0
0
1
1
0
1
0
0
0
1
0
0
0
1
0
1
0
1
0
1
0
1
1
0
0
1
1
0
0
1
1
1
0
1
1
1
1
0
0
0
1
0
0
0
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
1
1
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
1
1
0
1
1
1
1
0
1
1
1
0
1
1
1
1
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
FS0
SEL0
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
CPU
100.7
100.9
108.0
101.2
114.0
117.0
120.0
123.0
126.0
130.0
133.9
134.2
134.5
148.0
152.0
156.0
160.0
164.0
167.4
170.0
175.0
180.0
185.0
190.0
166.8
100.2
133.6
200.4
166.6
100.0
200.0
Pin Description
Output Frequency
3V66
PCI
67.1
33.6
67.3
33.6
72.0
36.0
67.5
33.7
76.0
38.0
78.0
39.0
80.0
40.0
82.0
41.0
63.0
31.5
65.0
32.5
67.0
33.5
67.1
33.6
67.3
33.6
74.0
37.0
76.0
38.0
78.0
39.0
80.0
40.0
82.0
41.0
66.9
33.5
68.0
34.0
70.0
35.0
72.0
36.0
74.0
37.0
76.0
38.0
66.7
33.4
66.8
33.4
66.8
33.4
66.8
33.4
66.6
33.3
66.6
33.3
66.6
33.3
Rev 1.0, November 20, 2006
Power On
Default
0
0
0
0
0
0
0
0
PLL Gear
Constants
(G)
48.00741
48.00741
48.00741
48.00741
48.00741
48.00741
48.00741
48.00741
48.00741
48.00741
48.00741
48.00741
48.00741
48.00741
48.00741
48.00741
48.00741
48.00741
48.00741
48.00741
48.00741
48.00741
48.00741
48.00741
48.00741
48.00741
48.00741
48.00741
48.00741
48.00741
48.00741
Page 12 of 20