ICS951464AGLF Datasheet, PDF (8/24 Pages) Integrated Device Technology – Programmable System Clock Chip for ATI RS/RD690 K8™ - based Systems

ICS951464
IDT^TM/ICST^M Programmable System Clock Chip for ATI RS/RD690 K8^TM - based Systems
Table 4: CPU Divider Ratios
B19b(7:4)
Divider (3:2)
Bit
00
01
10
11
MSB
00
0000
2
0100
4
1000
8
1100
16
01
0001
3
0101
6
1001
12
1101
24
10
0010
5
0110
10
1010
20
1110
40
11
0011
15
0111
30
1011
60
1111
120
LSB Address Div Address
Address Div Address Div
Table 5: HTT Divider Ratios
B20b(3:0)
Divider (3:2)
Bit
00
01
10
11
MSB
00
0000
4
0100
8
1000
16
1100
32
01
0001
3
0101
6
1001
12
1101
24
10
0010
5
0110
10
1010
20
1110
40
11
0011
15
0111
30
1011
60
1111
120
LSB Address Div Address
Address Div Address Div
Table 6: ATIG Divider Ratios
B19b(3:0)
Divider (3:2)
Bit
00
01
10
11
MSB
00
0000
2
0100
4
1000
8
1100
16
01
0001
3
0101
6
1001
12
1101
24
10
0010
5
0110
10
1010
20
1110
40
11
0011
7
0111
14
1011
28
1111
56
LSB Address Div Address
Address Div Address Div
IDT^TM/ICST^M Programmable System Clock Chip for ATI RS/RD690 K8^TM - based Systems
8
1211B—09/17/09