MPC8280 Motorola, MPC8280 Datasheet - Page 38

• Manufacturer Part Number: MPC8280
• Description: PowerQUICC II Family Hardware Specifications
• Manufacturer: Motorola

MODCK[1-3]
38
MODCK_H-
0000_000
0000_001
0000_010
0000_011
0000_100
0000_101
0000_110
0000_111
0001_001
0001_010
0001_011
0001_100
0010_001
0010_010
0010_011
0010_100
0011_000
0011_001
0011_010
0011_011
0011_100
0100_000
0100_001
0100_010
0100_011
0100_100
0101_000
Mode
3
33.3 50.0
33.3 50.0
27.8 50.0
31.3 50.0
25.0 50.0
29.8 50.0
26.8 50.0
25.0 50.0
50.0 50.0
41.7 50.0
35.7 50.0
33.3 50.0
25.0 50.0
29.8 50.0
26.0 50.0
25.0 50.0
50.0 50.0
46.9 50.0
41.7 50.0
27.8 50.0
35.7 50.0
31.3 50.0
27.8 50.0
27.8 50.0
Table 19. Clock Configurations for PCI Agent Mode (PCI_MODCK=1)
PCI Clock
low
(MHz)
high
MPC8280 PowerQUICC II™ Family Hardware Specifications
Multiplication
Factor
CPM
4
4
6
6
6
6
8
8
4
4
4
4
6
6
6
6
4
4
4
6
6
6
6
5
4
Default Modes (MODCK_H=0000)
Full Configuration Modes
133.3 200.0
133.3 200.0
166.7 300.0
187.5 300.0
150.0 300.0
178.6 300.0
214.3 400.0
200.0 400.0
200.0 200.0
166.7 200.0
142.9 200.0
133.3 200.0
150.0 300.0
178.6 300.0
156.3 300.0
150.0 300.0
200.0 200.0
187.5 200.0
166.7 200.0
166.7 300.0
214.3 300.0
187.5 300.0
166.7 300.0
166.7 250.0
CPM Clock
low
(MHz)
high
Multiplication
Reserved
Reserved
Reserved
Factor
CPU
2.5
3.5
3.5
3.5
4.5
2.5
4.5
3.5
4.5
2.5
3
3
4
3
3
5
6
7
8
3
4
4
3
4
5
166.7 250.0
200.0 300.0
166.7 300.0
250.0 400.0
180.0 360.0
250.0 420.0
250.0 466.7
240.0 480.0
250.0 250.0
250.0 300.0
250.0 350.0
266.7 400.0
180.0 360.0
250.0 420.0
250.0 480.0
270.0 540.0
166.7 166.7
250.0 266.7
250.0 300.0
166.7 300.0
250.0 350.0
250.0 400.0
250.0 450.0
166.7 250.0
CPU Clock
low
(MHz)
high
Division
Factor
Bus
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2
2
3
3
3
4
4
4
4
3
3
3
3
3
3
3
1,2
MOTOROLA
66.7 100.0
66.7 100.0
55.5 100.0
62.5 100.0
60.0 120.0
71.4 120.0
71.4 133.3
80.0 160.0
50.0
41.7
35.7
33.3
60.0 120.0
71.4 120.0
62.5 120.0
60.0 120.0
66.7
62.5
55.6
55.5 100.0
71.4 100.0
62.5 100.0
55.6 100.0
55.5 100.0
Bus Clock
low
(MHz)
high
50.0
50.0
50.0
50.0
66.7
66.7
66.7