參數(shù)資料
型號： MPC8275VRMIBA
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 32-BIT, 66.67 MHz, RISC PROCESSOR, PBGA516
封裝： 27 X 27 MM, 1 MM PITCH, LEAD FREE, PLASTIC, FBGA-516
文件頁數(shù)： 88/156頁
文件大?。?/td> 1680K
代理商： MPC8275VRMIBA
MOTOROLA
MPC8280 PowerQUICC II Family Hardware Specications
37
Clock Conguration Modes
1100_110
50.0
66.7
6
300.0 400.0
4.5
450.0 599.9
3
100.0 133.3
1100_111
50.0
66.7
6
300.0 400.0
5
500.0 666.6
3
100.0 133.3
1101_000
50.0
66.7
6
300.0 400.0
5.5
550.0 733.3
3
100.0 133.3
1101_001
50.0
66.7
6
300.0 400.0
3.5
420.0 559.9
2.5
120.0 160.0
1101_010
50.0
66.7
6
300.0 400.0
4
480.0 639.9
2.5
120.0 160.0
1101_011
50.0
66.7
6
300.0 400.0
4.5
540.0 719.9
2.5
120.0 160.0
1101_100
50.0
66.7
6
300.0 400.0
5
600.0 799.9
2.5
120.0 160.0
1110_000
50.0
66.7
5
250.0 333.3
2.5
312.5 416.6
2
125.0 166.7
1110_001
50.0
66.7
5
250.0 333.3
3
375.0 500.0
2
125.0 166.7
1110_010
50.0
66.7
5
250.0 333.3
3.5
437.5 583.3
2
125.0 166.7
1110_011
50.0
66.7
5
250.0 333.3
4
500.0 666.6
2
125.0 166.7
1110_100
50.0
66.7
5
250.0 333.3
4
333.3 444.4
3
83.3
111.1
1110_101
50.0
66.7
5
250.0 333.3
4.5
375.0 500.0
3
83.3
111.1
1110_110
50.0
66.7
5
250.0 333.3
5
416.7 555.5
3
83.3
111.1
1110_111
50.0
66.7
5
250.0 333.3
5.5
458.3 611.1
3
83.3
111.1
1100_000
Reserved
1100_001
Reserved
1100_010
Reserved
1 “Low” values are the minimum allowable frequencies for a given clock mode. The minimum bus frequency guarantees
the required minimum CPU operating frequency. Minimum CPU frequency is determined by the clock mode.
For modes with a CPU multiplication factor
≤ 3, the minimum CPU frequency is 166 MHz.The minimum CPM frequency
is 133 MHz.
For modes with a CPU multiplication factor
≥ 3.5, the minimum CPU frequency is 250 MHz. The minimum CPM
frequency is as shown in the table.
“High” values are for the purpose of illustration only. Users must select a mode and input bus frequency so that the
resulting conguration does not exceed the frequency rating of the user’s device.
2 As shown in Table 14, PCI_MODCK determines the PCI clock frequency range. Refer to Table 19 for lower
congurations.
3 MODCK_H = hard reset conguration word [28–31]. MODCK[1-3] = three hardware conguration pins.
4 CPM multiplication factor = CPM clock/PCI clock
5 CPU multiplication factor = Core PLL multiplication factor
Table 18. Clock Congurations for PCI Agent Mode (PCI_MODCK=0)1,2 (Continued)
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
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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