MPC8247 MOTOROLA [Motorola, Inc], MPC8247 Datasheet - Page 31
MPC8247
Manufacturer Part Number
MPC8247
Description
MPC8272 PowerQUICC II Family Hardware Specifications
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet
1.MPC8247.pdf
(56 pages)
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Clock Configuration Modes
Clock Configuration Modes
31
MODCK[1-3]
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
Mode
3
Table 17. Clock Configurations for PCI Agent Mode (PCI_MODCK=0)
Low
50.0
50.0
50.0
62.5
50.0
59.5
53.6
50.0
62.5
50.0
59.5
52.1
50.0
50.0
62.5
PCI Clock
(MHz)
MPC8272 PowerQUICC II™ Family Hardware Specifications
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
High
66.7
66.7
66.7
66.7
66.7
66.7
66.7
66.7
66.7
66.7
66.7
66.7
66.7
66.7
66.7
Freescale Semiconductor, Inc.
Multiplication
For More Information On This Product,
Factor
CPM
2
2
3
3
3
3
4
4
2
3
3
3
3
3
3
Default Modes (MODCK_H=0000
4
Go to: www.freescale.com
Full Configuration Modes
100.0 133.3
100.0 133.3
150.0 200.0
187.5 200.0
150.0 200.0
178.6 200.0
214.3 266.6
200.0 266.6
125.0 133.3
150.0 200.0
178.6 200.0
156.3 200.0
150.0 200.0
150.0 200.0
187.5 200.0
CPM Clock
Low
(MHz)
High
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Multiplication
Factor
CPU
2.5
3.5
3.5
3.5
4.5
3
3
4
3
3
8
3
4
3
4
5
125.0 166.7
150.0 200.0
150.0 200.0
250.0 266.6
180.0 240.0
250.0 280.0
250.0 311.1
240.0 320.0
250.0 266.6
180.0 240.0
250.0 280.0
250.0 320.0
270.0 360.0
150.0 200.0
250.0 266.6
Low
CPU Clock
(MHz)
High
Division
Factor
Bus
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2
2
3
3
3
4
3
3
1, 2
MOTOROLA
Low
50.0
50.0
50.0
62.5
60.0
71.4
71.4
80.0 106.7
31.3
60.0
71.4
62.5
60.0
50.0
62.5
Bus Clock
(MHz)
High
66.7
66.7
66.7
66.7
80.0
80.0
88.9
33.3
80.0
80.0
80.0
80.0
66.7
66.7