參數(shù)資料
型號: MPC8247VRT
廠商: Motorola, Inc.
英文描述: MPC8272 PowerQUICC II Family Hardware Specifications
中文描述: MPC8272的PowerQUICC II系列硬件規(guī)格
文件頁數(shù): 27/56頁
文件大?。?/td> 539K
代理商: MPC8247VRT
27
MPC8272 PowerQUICC II Family Hardware Specifications
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
For More Information On This Product,
Go to: www.freescale.com
MOTOROLA
Clock Configuration Modes
Table 16. Clock Configurations for PCI Host Mode (PCI_MODCK=1)
1, 2
Mode
3
Bus Clock
(MHz)
CPM
Multiplication
Factor
4
CPM Clock
(MHz)
CPU
Multiplication
Factor
5
CPU Clock
(MHz)
PCI
Division
Factor
PCI Clock
(MHz)
MODCK_H-
MODCK[1-3]
Low
High
Low
High
Low
High
Low
High
Default Modes (MODCK_H=0000)
0000_000
50.0
100.0
2
100.0 200.0
2.5
125.0 250.0
4
25.0
50.0
0000_001
50.0
100.0
2
100.0 200.0
3
150.0 300.0
4
25.0
50.0
0000_010
60.0
120.0
2.5
150.0 300.0
3
180.0 360.0
6
25.0
50.0
0000_011
71.4
120.0
2.5
178.6 300.0
3.5
250.0 420.0
6
29.8
50.0
0000_100
62.5
120.0
2.5
156.3 300.0
4
250.0 480.0
6
26.0
50.0
0000_101
50.0
100.0
3
150.0 300.0
3
150.0 300.0
6
25.0
50.0
0000_110
71.4
100.0
3
214.3 300.0
3.5
250.0 350.0
6
35.7
50.0
0000_111
62.5
100.0
3
187.5 300.0
4
250.0 400.0
6
31.3
50.0
Full Configuration Modes
0001_000
50.0
100.0
3
150.0 300.0
5
250.0 500.0
6
25.0
50.0
0001_001
50.0
100.0
3
150.0 300.0
6
300.0 600.0
6
25.0
50.0
0001_010
50.0
100.0
3
150.0 300.0
7
350.0 700.0
6
25.0
50.0
0001_011
50.0
100.0
3
150.0 300.0
8
400.0 800.0
6
25.0
50.0
0010_000
50.0
100.0
4
200.0 400.0
5
250.0 500.0
8
25.0
50.0
0010_001
50.0
100.0
4
200.0 400.0
6
300.0 600.0
8
25.0
50.0
0010_010
50.0
100.0
4
200.0 400.0
7
350.0 700.0
8
25.0
50.0
0010_011
50.0
100.0
4
200.0 400.0
8
400.0 800.0
8
25.0
50.0
0010_100
50.0
75.0
4
200.0 300.0
5
250.0 375.0
6
33.3
50.0
0010_101
45.5
75.0
4
181.8 300.0
5.5
250.0 412.5
6
30.3
50.0
0010_110
41.7
75.0
4
166.7 300.0
6
250.0 450.0
6
27.8
50.0
0011_000
50.0
50.0
5
250.0 250.0
5
250.0 250.0
5
50.0
50.0
0011_001
41.7
50.0
5
208.3 250.0
6
250.0 300.0
5
41.7
50.0
0011_010
35.7
50.0
5
178.6 250.0
7
250.0 350.0
5
35.7
50.0
0011_011
31.3
50.0
5
156.3 250.0
8
250.0 400.0
5
31.3
50.0
0100_000
Reserved
0100_001
41.7
50.0
6
250.0 300.0
6
250.0 300.0
6
41.7
50.0
F
Freescale Semiconductor, Inc.
n
.
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