MPC8270 MOTOROLA [Motorola, Inc], MPC8270 Datasheet - Page 32

• Manufacturer Part Number: MPC8270
• Description: PowerQUICC II Family Hardware Specifications
• Manufacturer: MOTOROLA [Motorola, Inc]

MODCK[1-3]
MODCK_H-
32
0110_000
0110_001
0110_010
0110_011
0110_100
0110_101
0110_110
0111_000
0111_001
0111_010
0111_011
0111_100
1000_000
1000_001
1000_010
1000_011
1000_100
1000_101
1000_110
1001_000
1001_001
1001_010
1001_011
1001_100
1001_101
1001_110
1001_111
Mode
3
Table 17. Clock Configurations for PCI Host Mode (PCI_MODCK=1)
Bus Clock
66.7
60.0
71.4
62.5
60.0
60.0
60.0
55.5
71.4
62.5
55.6
66.7
71.4
66.7
66.7
66.7
66.7
71.4
62.5
57.1
50.0
45.5
42.9
low
(MHz)
120.0
120.0
120.0
120.0
120.0
120.0
120.0
100.0
100.0
100.0
100.0
133.3
133.3
133.3
133.3
133.3
133.3
114.3
114.3
114.3
high
85.7
85.7
85.7
MPC8280 PowerQUICC II™ Family Hardware Specifications
4
Multiplication
Factor
CPM
2.5
2.5
2.5
2.5
2.5
2.5
2.5
3.5
3.5
3.5
3.5
3.5
3.5
3
3
3
3
3
3
3
3
3
3
5
166.7 300.0
150.0 300.0
178.6 300.0
156.3 300.0
150.0 300.0
150.0 300.0
150.0 300.0
166.7 300.0
214.3 300.0
187.5 300.0
166.7 300.0
200.0 400.0
214.3 400.0
200.0 400.0
200.0 400.0
200.0 400.0
200.0 400.0
250.0 400.0
218.8 400.0
200.0 400.0
175.0 300.0
159.1 300.0
150.0 300.0
CPM Clock
low
(MHz)
high
Multiplication
Reserved
Reserved
Reserved
Reserved
Factor
CPU
2.5
3.5
4.5
3.5
4.5
3.5
4.5
6.5
3.5
4.5
5.5
3
4
5
6
3
4
3
4
6
4
5
6
6
166.7 300.0
180.0 360.0
250.0 420.0
250.0 480.0
270.0 540.0
300.0 600.0
360.0 720.0
166.7 300.0
250.0 350.0
250.0 400.0
250.0 450.0
200.0 400.0
250.0 466.7
266.7 533.3
300.0 600.0
400.0 800.0
433.3 866.7
250.0 400.0
250.0 457.1
257.1 514.3
250.0 428.6
250.0 471.4
257.1 514.3
CPU Clock
low
(MHz)
high
1,2
(Continued)
Division
Factor
PCI
6
6
6
6
6
6
6
6
6
6
6
8
8
8
8
8
8
8
8
8
6
6
6
MOTOROLA
27.8 50.0
25.0 50.0
29.8 50.0
26.0 50.0
25.0 50.0
25.0 50.0
25.0 50.0
27.8 50.0
35.7 50.0
31.3 50.0
27.8 50.0
25.0 50.0
26.8 50.0
25.0 50.0
25.0 50.0
25.0 50.0
25.0 50.0
31.3 50.0
27.3 50.0
25.0 50.0
29.2 50.0
26.5 50.0
25.0 50.0
PCI Clock
low high
(MHz)