mpc8270vr Freescale Semiconductor, Inc, mpc8270vr Datasheet - Page 29

• Manufacturer Part Number: mpc8270vr
• Description: Mpc8275 Powerquicc Ii Integrated Communications Processor
• Manufacturer: Freescale Semiconductor, Inc

Freescale Semiconductor
MODCK[1-3]
MODCK_H-
1000_000
1000_001
1000_010
1000_100
1000_101
1001_000
1001_001
1001_010
1001_100
1001_101
1010_000
1010_001
1010_010
1010_100
1000_011
1000_110
1001_011
1001_110
1010_011
1011_000
1011_001
1011_010
1011_100
1011_101
0111_100
1001_111
1011_011
Mode
3
Table 17. Clock Configurations for PCI Host Mode (PCI_MODCK=0)
Bus Clock
Low
50.0
66.7
66.7
66.7
66.7
66.7
66.7
57.1
57.1
57.1
85.7
85.7
85.7
75.0
75.0
75.0
75.0
75.0
80.0
80.0
80.0
80.0
80.0
(MHz)
100.0
100.0
100.0
100.0
100.0
106.7
106.7
106.7
106.7
106.7
114.3
114.3
114.3
High
MPC8280 PowerQUICC™ II Family Hardware Specifications, Rev. 1.8
66.7
88.9
88.9
88.9
88.9
88.9
88.9
76.2
76.2
76.2
4
Multiplication
Factor
CPM
3.5
3.5
3.5
3.5
3.5
3.5
2.5
2.5
2.5
2.5
2.5
3
3
3
3
3
3
3
2
2
2
2
2
5
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
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
Low
CPM Clock
(MHz)
High
Multiplication
Reserved
Reserved
Reserved
Reserved
Factor
CPU
4.5
3.5
4.5
6.5
3.5
4.5
5.5
2.5
3.5
2.5
3.5
4.5
3
4
6
4
5
6
2
3
4
3
4
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
225.0 300.0
262.5 350.0
300.0 400.0
200.0 266.6
240.0 320.0
280.0 373.3
320.0 426.6
360.0 480.0
Low
CPU Clock
(MHz)
High
1, 2
Clock Configuration Modes
(continued)
Division
Factor
PCI
3
4
4
4
4
4
4
4
4
4
6
6
6
3
3
3
3
3
4
4
4
4
4
Low High
50.0 66.7
50.0 66.7
50.0 66.7
50.0 66.7
50.0 66.7
50.0 66.7
50.0 66.7
50.0 66.7
50.0 66.7
50.0 66.7
50.0 66.7
50.0 66.7
50.0 66.7
50.0 66.7
50.0 66.7
50.0 66.7
50.0 66.7
50.0 66.7
50.0 66.7
50.0 66.7
50.0 66.7
50.0 66.7
50.0 66.7
PCI Clock
(MHz)
29