mpc8270vr Freescale Semiconductor, Inc, mpc8270vr Datasheet - Page 32

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

Clock Configuration Modes
32
MODCK[1-3]
MODCK_H-
0100_011
0101_000
0101_001
0101_010
0101_011
0101_100
0110_000
0110_001
0110_010
0110_100
0110_101
1000_000
1000_001
1000_010
1000_011
1000_100
1000_101
1000_110
1001_000
1001_001
0110_011
0110_110
0111_000
0111_001
0111_010
0111_011
0111_100
Mode
3
Table 18. Clock Configurations for PCI Host Mode (PCI_MODCK=1)
Bus Clock
Low
25.0
60.0
50.0
50.0
50.0
50.0
60.0
60.0
60.0
60.0
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
(MHz)
100.0
100.0
100.0
100.0
100.0
120.0
120.0
120.0
120.0
120.0
120.0
120.0
100.0
100.0
100.0
100.0
133.3
133.3
133.3
133.3
133.3
133.3
High
50.0
MPC8280 PowerQUICC™ II Family Hardware Specifications, Rev. 1.8
4
Multiplication
Factor
CPM
2.5
2.5
2.5
2.5
2.5
2.5
2.5
6
2
2
2
2
2
3
3
3
3
3
3
3
3
3
3
5
150.0 300.0
120.0 200.0
100.0 200.0
100.0 200.0
100.0 200.0
100.0 200.0
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
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
CPM Clock
Low
(MHz)
High
Multiplication
Reserved
Reserved
Reserved
Reserved
Factor
CPU
2.5
3.5
4.5
2.5
3.5
4.5
3.5
4.5
3.5
4.5
6.5
8
3
4
3
4
5
6
3
4
3
4
6
6
200.0 400.0
150.0 250.0
150.0 300.0
175.0 350.0
200.0 400.0
225.0 450.0
150.0 300.0
180.0 360.0
210.0 420.0
240.0 480.0
270.0 540.0
300.0 600.0
360.0 720.0
150.0 300.0
175.0 350.0
200.0 400.0
225.0 450.0
200.0 400.0
233.3 466.7
266.7 533.3
300.0 600.0
400.0 800.0
433.3 866.7
CPU Clock
Low
(MHz)
High
1, 2
(continued)
Division
Freescale Semiconductor
Factor
PCI
6
4
4
4
4
4
6
6
6
6
6
6
6
6
6
6
6
8
8
8
8
8
8
Low High
25.0 50.0
30.0 50.0
25.0 50.0
25.0 50.0
25.0 50.0
25.0 50.0
25.0 50.0
25.0 50.0
25.0 50.0
25.0 50.0
25.0 50.0
25.0 50.0
25.0 50.0
25.0 50.0
25.0 50.0
25.0 50.0
25.0 50.0
25.0 50.0
25.0 50.0
25.0 50.0
25.0 50.0
25.0 50.0
25.0 50.0
PCI Clock
(MHz)