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參數(shù)資料
| 型號： | MPC8280ZQIX |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 32-BIT, 200 MHz, RISC PROCESSOR, PBGA516 |
| 封裝： | 27 X 27 MM, 2.25 MM, 1 MM PITCH, PLASTIC, BGA-516 |
| 文件頁數(shù)： | 32/83頁 |
| 文件大小： | 618K |
| 代理商： | MPC8280ZQIX |
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MPC8280 PowerQUICC II Family Hardware Specifications, Rev. 2
38
Freescale Semiconductor
Clock Configuration Modes
NOTE: PCI_MODCK
In PCI mode only, PCI_MODCK comes from the LGPL5 pin and
MODCK_H[0–3] comes from {LGPL0, LGPL1, LGPL2, LGPL3}.
NOTE: Tval (Output Hold)
The minimum Tval = 2 ns when PCI_MODCK = 1, and the minimum
Tval = 1 ns when PCI_MODCK = 0. Therefore, designers should use clock
configurations that fit this condition to achieve PCI-compliant AC timing.
Table 21. Clock Configurations for PCI Agent Mode (PCI_MODCK=0)1,2
Mode3
PCI Clock
(MHz)
CPM
Multiplication
Factor4
CPM Clock
(MHz)
CPU
Multiplication
Factor5
CPU Clock
(MHz)
Bus
Division
Factor
Bus Clock
(MHz)
MODCK_H-
MODCK[1-3]
Low
High
Low
High
Low
High
Low
High
Default Modes (MODCK_H=0000
0000_000
60.0
66.7
2
120.0 133.3
2.5
150.0 166.7
2
60.0
66.7
0000_001
50.0
66.7
2
100.0 133.3
3
150.0 200.0
2
50.0
66.7
0000_010
50.0
66.7
3
150.0 200.0
3
150.0 200.0
3
50.0
66.7
0000_011
50.0
66.7
3
150.0 200.0
4
200.0 266.6
3
50.0
66.7
0000_100
50.0
66.7
3
150.0 200.0
3
180.0 240.0
2.5
60.0
80.0
0000_101
50.0
66.7
3
150.0 200.0
3.5
210.0 280.0
2.5
60.0
80.0
0000_110
50.0
66.7
4
200.0 266.6
3.5
233.3 311.1
3
66.7
88.9
0000_111
50.0
66.7
4
200.0 266.6
3
240.0 320.0
2.5
80.0
106.7
Full Configuration Modes
0001_001
60.0
66.7
2
120.0 133.3
5
150.0 166.7
4
30.0
33.3
0001_010
50.0
66.7
2
100.0 133.3
6
150.0 200.0
4
25.0
33.3
0001_011
50.0
66.7
2
100.0 133.3
7
175.0 233.3
4
25.0
33.3
0001_100
50.0
66.7
2
100.0 133.3
8
200.0 266.6
4
25.0
33.3
0010_001
50.0
66.7
3
150.0 200.0
3
180.0 240.0
2.5
60.0
80.0
0010_010
50.0
66.7
3
150.0 200.0
3.5
210.0 280.0
2.5
60.0
80.0
0010_011
50.0
66.7
3
150.0 200.0
4
240.0 320.0
2.5
60.0
80.0
0010_100
50.0
66.7
3
150.0 200.0
4.5
270.0 360.0
2.5
60.0
80.0
0011_000
Reserved
0011_001
Reserved
0011_010
Reserved
0011_011
Reserved
0011_100
Reserved
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