MPC8247 MOTOROLA [Motorola, Inc], MPC8247 Datasheet - Page 27

• Manufacturer Part Number: MPC8247
• Description: MPC8272 PowerQUICC II Family Hardware Specifications
• Manufacturer: MOTOROLA [Motorola, Inc]

Clock Configuration Modes
Clock Configuration Modes
27
MODCK[1-3]
MODCK_H-
0000_000
0000_001
0000_010
0000_011
0000_100
0000_101
0000_110
0000_111
0001_000
0001_001
0001_010
0001_011
0010_000
0010_001
0010_010
0010_011
0010_100
0010_101
0010_110
0011_000
0011_001
0011_010
0011_011
0100_000
0100_001
Mode
3
Table 16. Clock Configurations for PCI Host Mode (PCI_MODCK=1)
Low
50.0 100.0
50.0 100.0
60.0 120.0
71.4 120.0
62.5 120.0
50.0 100.0
71.4 100.0
62.5 100.0
50.0 100.0
50.0 100.0
50.0 100.0
50.0 100.0
50.0 100.0
50.0 100.0
50.0 100.0
50.0 100.0
50.0
45.5
41.7
50.0
41.7
35.7
31.3
41.7
Bus Clock
(MHz)
MPC8272 PowerQUICC II™ Family Hardware Specifications
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
High
75.0
75.0
75.0
50.0
50.0
50.0
50.0
50.0
Freescale Semiconductor, Inc.
Multiplication
For More Information On This Product,
Factor
CPM
2.5
2.5
2.5
2
2
3
3
3
3
3
3
3
4
4
4
4
4
4
4
5
5
5
5
6
Default Modes (MODCK_H=0000)
4
Go to: www.freescale.com
Full Configuration Modes
100.0 200.0
100.0 200.0
150.0 300.0
178.6 300.0
156.3 300.0
150.0 300.0
214.3 300.0
187.5 300.0
150.0 300.0
150.0 300.0
150.0 300.0
150.0 300.0
200.0 400.0
200.0 400.0
200.0 400.0
200.0 400.0
200.0 300.0
181.8 300.0
166.7 300.0
250.0 250.0
208.3 250.0
178.6 250.0
156.3 250.0
250.0 300.0
CPM Clock
Low
(MHz)
High
Reserved
Multiplication
Factor
CPU
2.5
3.5
3.5
5.5
3
3
4
3
4
5
6
7
8
5
6
7
8
5
6
5
6
7
8
6
5
125.0 250.0
150.0 300.0
180.0 360.0
250.0 420.0
250.0 480.0
150.0 300.0
250.0 350.0
250.0 400.0
250.0 500.0
300.0 600.0
350.0 700.0
400.0 800.0
250.0 500.0
300.0 600.0
350.0 700.0
400.0 800.0
250.0 375.0
250.0 412.5
250.0 450.0
250.0 250.0
250.0 300.0
250.0 350.0
250.0 400.0
250.0 300.0
Low
CPU Clock
(MHz)
High
Division
Factor
PCI
4
4
6
6
6
6
6
6
6
6
6
6
8
8
8
8
6
6
6
5
5
5
5
6
1, 2
MOTOROLA
Low
25.0
25.0
25.0
29.8
26.0
25.0
35.7
31.3
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
33.3
30.3
27.8
50.0
41.7
35.7
31.3
41.7
PCI Clock
(MHz)
High
50.0
50.0
50.0
50.0
50.0
50.0
50.0
50.0
50.0
50.0
50.0
50.0
50.0
50.0
50.0
50.0
50.0
50.0
50.0
50.0
50.0
50.0
50.0
50.0