參數(shù)資料
型號: MPC8248
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): 24/56頁
文件大?。?/td> 1090K
代理商: MPC8248
24
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
0100_010
50.0
66.7
6
300.0 400.0
7
350.0 466.6
6
50.0
66.7
0100_011
50.0
66.7
6
300.0 400.0
8
400.0 533.3
6
50.0
66.7
0101_000
50.0
66.7
2
100.0 133.3
2.5
125.0 166.7
2
50.0
66.7
0101_001
50.0
66.7
2
100.0 133.3
3
150.0 200.0
2
50.0
66.7
0101_010
PCI host mode (PCI_MODCK=1) only (refer to Table 16)
0101_011
62.5
66.7
2
125.0 133.3
4
250.0 266.6
2
62.5
66.7
0101_100
55.6
66.7
2
111.1 133.3
4.5
250.0 300.0
2
55.6
66.7
0101_101
83.3
111.1
3
250.0 333.3
3.5
291.7 388.9
5
50.0
66.7
0101_110
83.3
111.1
3
250.0 333.3
4
333.3 444.4
5
50.0
66.7
0101_111
83.3
111.1
3
250.0 333.3
4.5
375.0 500.0
5
50.0
66.7
0110_000
60.0
80.0
2.5
150.0 200.0
2.5
150.0 200.0
3
50.0
66.7
0110_001
60.0
80.0
2.5
150.0 200.0
3
180.0 240.0
3
50.0
66.7
0110_010
71.4
80.0
2.5
178.6 200.0
3.5
250.0 280.0
3
59.5
66.7
0110_011
62.5
80.0
2.5
156.3 200.0
4
250.0 320.0
3
52.1
66.7
0110_100
60.0
80.0
2.5
150.0 200.0
4.5
270.0 360.0
3
50.0
66.7
0110_101
60.0
80.0
2.5
150.0 200.0
5
300.0 400.0
3
50.0
66.7
0110_110
60.0
80.0
2.5
150.0 200.0
6
360.0 480.0
3
50.0
66.7
0111_000
Reserved
0111_001
50.0
66.7
3
150.0 200.0
3
150.0 200.0
3
50.0
66.7
0111_010
PCI host mode (PCI_MODCK=1) only (refer to Table 16)
0111_011
62.5
66.7
3
187.5 200.0
4
250.0 266.6
3
62.5
66.7
0111_100
55.6
66.7
3
166.7 200.0
4.5
250.0 300.0
3
55.6
66.7
1000_000
Reserved
1000_001
66.7
88.9
3
200.0 266.6
3
200.0 266.6
4
50.0
66.7
1000_010
71.4
88.9
3
214.3 266.6
3.5
250.0 311.1
4
53.6
66.7
1000_011
66.7
88.9
3
200.0 266.6
4
266.7 355.5
4
50.0
66.7
Table 15. Clock Configurations for PCI Host Mode (PCI_MODCK=0)
1, 2
(continued)
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
F
Freescale Semiconductor, Inc.
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