MPC8270 MOTOROLA [Motorola, Inc], MPC8270 Datasheet - Page 28

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

MODCK[1-3]
28
MODCK_H-
0011_001
0011_010
0011_011
0100_000
0100_001
0100_010
0100_011
0101_000
0101_001
0101_010
0101_011
0101_100
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
Mode
3
Table 16. Clock Configurations for PCI Host Mode (PCI_MODCK=0)
Bus Clock
50.0
50.0
50.0
50.0
50.0
50.0
66.7
66.7
66.7
66.7
66.7
60.0
71.4
62.5
60.0
60.0
60.0
55.5
62.5
55.6
66.7
71.4
66.7
low
(MHz)
high
66.7
66.7
66.7
66.7
66.7
66.7
66.7
66.7
66.7
66.7
80.0
80.0
80.0
80.0
80.0
80.0
80.0
66.7
66.7
66.7
88.9
88.9
88.9
MPC8280 PowerQUICC II™ Family Hardware Specifications
4
Multiplication
Factor
CPM
2.5
2.5
2.5
2.5
2.5
2.5
2.5
5
5
5
6
6
6
2
2
2
2
3
3
3
3
3
3
PCI host mode (PCI_MODCK=1) only (refer to Table 17)
PCI host mode (PCI_MODCK=1) only (refer to Table 17)
5
250.0 333.3
250.0 333.3
250.0 333.3
300.0 400.0
300.0 400.0
300.0 400.0
133.3 133.3
133.3 133.3
133.3 133.3
133.3 133.3
166.7 200.0
150.0 200.0
178.6 200.0
156.3 200.0
150.0 200.0
150.0 200.0
150.0 200.0
166.7 200.0
187.5 200.0
166.7 200.0
200.0 266.6
214.3 266.6
200.0 266.6
CPM Clock
low
(MHz)
high
Multiplication
Reserved
Reserved
Reserved
Factor
CPU
2.5
4.5
2.5
3.5
4.5
4.5
3.5
6
7
8
6
7
8
3
4
3
4
5
6
3
4
3
4
6
300.0 400.0
350.0 466.6
400.0 533.3
300.0 400.0
350.0 466.6
400.0 533.3
166.7 166.7
200.0 200.0
266.7 266.6
300.0 300.0
166.7 200.0
180.0 240.0
250.0 280.0
250.0 320.0
270.0 360.0
300.0 400.0
360.0 480.0
166.7 200.0
250.0 266.6
250.0 300.0
200.0 266.6
250.0 311.1
266.7 355.5
CPU Clock
low
(MHz)
high
1,2
(Continued)
Division
Factor
PCI
5
5
5
6
6
6
2
2
2
2
3
3
3
3
3
3
3
3
3
3
4
4
4
MOTOROLA
PCI Clock
50.0 66.7
50.0 66.7
50.0 66.7
50.0 66.7
50.0 66.7
50.0 66.7
66.7 66.7
66.7 66.7
66.7 66.7
66.7 66.7
55.5 66.7
50.0 66.7
59.5 66.7
52.1 66.7
50.0 66.7
50.0 66.7
50.0 66.7
55.5 66.7
62.5 66.7
55.6 66.7
50.0 66.7
53.6 66.7
50.0 66.7
low high
(MHz)