mpc8270vr Freescale Semiconductor, Inc, mpc8270vr Datasheet - Page 40

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

Clock Configuration Modes
40
MODCK[1-3]
MODCK_H-
1000_000
1000_001
1000_010
1000_100
1000_101
1001_000
1001_001
1001_010
1001_100
1010_000
1010_001
1010_010
1010_100
1000_011
1001_011
1010_011
1011_000
1011_001
1011_010
1011_100
1100_101
0111_000
0111_001
0111_010
0111_011
1011_011
1100_110
Mode
3
Table 20. Clock Configurations for PCI Agent Mode (PCI_MODCK=1)
Low High
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
PCI Clock
(MHz)
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
MPC8280 PowerQUICC™ II Family Hardware Specifications, Rev. 1.8
Multiplication
Factor
CPM
6
6
6
6
6
6
6
6
6
8
8
8
8
8
8
8
8
8
8
6
6
4
150.0 300.0
150.0 300.0
150.0 300.0
150.0 300.0
150.0 300.0
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
200.0 400.0
200.0 400.0
200.0 400.0
200.0 400.0
200.0 400.0
200.0 400.0
150.0 300.0
150.0 300.0
CPM Clock
Low
(MHz)
High
Multiplication
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Factor
CPU
2.5
3.5
2.5
3.5
4.5
4.5
3.5
4.5
2.5
3.5
4.5
2
3
3
4
4
3
4
3
4
4
5
150.0 300.0
187.5 375.0
225.0 450.0
262.5 525.0
150.0 300.0
180.0 360.0
210.0 420.0
240.0 480.0
270.0 540.0
200.0 400.0
225.0 450.0
200.0 400.0
233.3 466.7
266.7 533.3
300.0 600.0
200.0 400.0
240.0 480.0
280.0 560.0
320.0 640.0
200.0 400.0
225.0 450.0
CPU Clock
Low
(MHz)
High
1, 2
Division
(continued)
Factor
Freescale Semiconductor
Bus
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2
2
2
2
4
4
3
3
3
3
3
3
Low
75.0
75.0
75.0
75.0
60.0
60.0
60.0
60.0
60.0
50.0
50.0
66.7
66.7
66.7
66.7
80.0
80.0
80.0
80.0
50.0
50.0
Bus Clock
(MHz)
150.0
150.0
150.0
150.0
120.0
120.0
120.0
120.0
120.0
100.0
100.0
133.3
133.3
133.3
133.3
160.0
160.0
160.0
160.0
100.0
100.0
High