MPC8248 Freescale Semiconductor, Inc, MPC8248 Datasheet - Page 27

• Manufacturer Part Number: MPC8248
• Description: Mpc8248 Powerquicc Ii Integrated Communications Processor
• Manufacturer: Freescale Semiconductor, Inc

Freescale Semiconductor
MODCK[1-3]
MODCK_H-
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
1010_000
1010_001
Mode
Table 16. Clock Configurations for PCI Host Mode (PCI_MODCK=0)
3
Low
60.0
60.0
60.0
50.0
50.0
50.0
50.0
66.7
66.7
66.7
66.7
66.7
66.7
57.1
57.1
57.1
85.7 114.3
85.7 114.3
85.7 114.3
75.0 100.0
75.0 100.0
Bus Clock
(MHz)
MPC8272 PowerQUICC II™ Family Hardware Specifications, Rev. 1.5
High
80.0
80.0
80.0
66.7
66.7
66.7
66.7
88.9
88.9
88.9
88.9
88.9
88.9
76.2
76.2
76.2
Multiplication
Factor
CPM
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
2
2
4
150.0 200.0
150.0 200.0
150.0 200.0
150.0 200.0
150.0 200.0
150.0 200.0
150.0 200.0
200.0 266.6
200.0 266.6
200.0 266.6
200.0 266.6
200.0 266.6
200.0 266.6
200.0 266.6
200.0 266.6
200.0 266.6
300.0 400.0
300.0 400.0
300.0 400.0
150.0 200.0
150.0 200.0
CPM Clock
Low
(MHz)
High
Reserved
Reserved
Reserved
Reserved
Multiplication
Factor
CPU
4.5
3.5
4.5
3.5
4.5
6.5
3.5
4.5
5.5
2.5
5
6
3
4
3
4
6
4
5
6
2
5
270.0 360.0
300.0 400.0
360.0 480.0
150.0 200.0
175.0 233.3
200.0 266.6
225.0 300.0
200.0 266.6
233.3 311.1
266.7 355.5
300.0 400.0
400.0 533.3
433.3 577.7
200.0 266.6
228.6 304.7
257.1 342.8
428.6 571.4
471.4 628.5
514.3 685.6
150.0 200.0
187.5 250.0
CPU Clock
Low
(MHz)
High
1, 2
Division
(continued)
Factor
PCI
Clock Configuration Modes
3
3
3
3
3
3
3
4
4
4
4
4
4
4
4
4
6
6
6
3
3
Low
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
PCI Clock
(MHz)
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
66.7
66.7
66.7
66.7
66.7
66.7
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