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参数资料
| 型号： | MPC8270VVUPEA |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 24/83页 |
| 文件大小： | 0K |
| 描述： | IC MPU POWERQUICC II 480-TBGA |
| 标准包装： | 21 |
| 系列： | MPC82xx |
| 处理器类型： | 32-位 MPC82xx PowerQUICC II |
| 速度： | 450MHz |
| 电压： | 1.5V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 480-LBGA |
| 供应商设备封装： | 408-TBGA（37.5x37.5） |
| 包装： | 托盘 |
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MPC8280 PowerQUICC II Family Hardware Specifications, Rev. 2
30
Freescale Semiconductor
Clock Configuration Modes
7.2
PCI Host Mode
These tables show clock configurations for PCI host mode. The frequency values listed are for the purpose
of illustration only. Users must select a mode and input bus frequency so that the resulting configuration
does not exceed the frequency rating of the user’s device. Note that in PCI host mode the input clock is the
following:
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.
1 The “low” values are the minimum allowable frequencies for a given clock mode. The minimum bus frequency in a table entry
guarantees only the required minimum CPU operating frequency. The “high” values are for the purpose of illustration only.
Users must select a mode and input bus frequency so that the resulting configuration does not violate the frequency rating of
the user’s device. The minimum CPM frequency is 120 MHz. Minimum CPU frequency is determined by the clock mode. For
modes with a CPU multiplication factor <= 3, the minimum CPU frequency is 150 MHz for commercial temperature devices
and 175 MHz for extended temperature devices. For modes with a CPU multiplication factor >= 3.5: for Rev0.1 the minimum
CPU frequency is 250 MHz; for Rev A or later the minimum CPU frequency is 150 MHz for commercial temperature devices
and 175 MHz for extended temperature devices.
2 MODCK_H = hard reset configuration word [28–31]. MODCK[1-3] = three hardware configuration pins.
3 60x and local bus frequency. Identical to CLKIN.
4 CPM multiplication factor = CPM clock/bus clock
5 CPU multiplication factor = Core PLL multiplication factor
Table 19. Clock Configurations for PCI Host Mode (PCI_MODCK=0)1,2
Mode3
Bus Clock4
(MHz)
CPM
Multiplication
Factor5
CPM Clock
(MHz)
CPU
Multiplication
Factor6
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
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
60.0
80.0
2.5
150.0 200.0
3
180.0 240.0
3
50.0
66.7
0000_011
60.0
80.0
2.5
150.0 200.0
3.5
210.0 280.0
3
50.0
66.7
0000_100
60.0
80.0
2.5
150.0 200.0
4
240.0 320.0
3
50.0
66.7
0000_101
50.0
66.7
3
150.0 200.0
3
150.0 200.0
3
50.0
66.7
0000_110
50.0
66.7
3.5
150.0 200.0
3.5
175.0 233.3
3
50.0
66.7
0000_111
50.0
66.7
3
150.0 200.0
4
200.0 266.6
3
50.0
66.7
Full Configuration Modes
0001_000
50.0
66.7
3
150.0 200.0
5
250.0 333.3
3
50.0
66.7
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MPC8270VVUPEA | 制造商:Freescale Semiconductor 功能描述:PQ II HIP 7 REV A NO-PB |
| MPC8270ZQ | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:PowerQUICC II Family Hardware Specifications |
| MPC8270ZQB | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:PowerQUICC II⑩ Family Hardware Specifications |
| MPC8270ZQE | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:PowerQUICC II⑩ Family Hardware Specifications |
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