- 您现在的位置：买卖IC网 > PDF目录80499 > MPC8270ZQUPEX (FREESCALE SEMICONDUCTOR INC) 32-BIT, 450 MHz, RISC PROCESSOR, PBGA516 PDF资料下载
参数资料
| 型号： | MPC8270ZQUPEX |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 32-BIT, 450 MHz, RISC PROCESSOR, PBGA516 |
| 封装： | 27 X 27 MM, 2.25 MM HEIGHT, 1 MM PITCH, PLASTIC, BGA-516 |
| 文件页数： | 28/80页 |
| 文件大小： | 536K |
| 代理商： | MPC8270ZQUPEX |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页当前第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页
MPC8280 PowerQUICC II Family Hardware Specifications, Rev. 1.8
34
Freescale Semiconductor
Clock Configuration Modes
7.3 PCI Agent Mode
Table 19 and Table 20 show configurations for PCI agent mode. The frequencies 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. In addition, note 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.
1110_010
50.0
100.0
3
150.0 300.0
4.5
225.0 450.0
6
25.0
50.0
1110_011
50.0
100.0
3
150.0 300.0
5
250.0 500.0
6
25.0
50.0
1110_100
50.0
100.0
3
150.0 300.0
5.5
275.0 550.0
6
25.0
50.0
1100_000
Reserved
1100_001
Reserved
1100_010
Reserved
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 RevA or later the minimum CPU frequency is 150 MHz for commercial temperature devices and 175
MHz for extended temperature devices.
2
As Table 15 shows, PCI_MODCK determines the PCI clock frequency range. Refer to Table 17 for higher configurations.
3
MODCK_H = hard reset configuration word [28–31]. MODCK[1-3] = three hardware configuration pins.
4
60x and local bus frequency. Identical to CLKIN.
5
CPM multiplication factor = CPM clock/bus clock
6
CPU multiplication factor = Core PLL multiplication factor
Table 18. Clock Configurations for PCI Host Mode (PCI_MODCK=1) 1, 2 (continued)
Mode 3
Bus Clock 4
(MHz)
CPM
Multiplication
Factor 5
CPM Clock
(MHz)
CPU
Multiplication
Factor 6
CPU Clock
(MHz)
PCI
Division
Factor
PCI Clock
(MHz)
MODCK_H-
MODCK[1-3]
Low
High
Low
High
Low
High
Low High
相关PDF资料 |
PDF描述 |
|---|---|
| M38D59GC-XXXFP | 8-BIT, MROM, 6.25 MHz, MICROCONTROLLER, PQFP80 |
| MC68B05P2L | 8-BIT, MROM, 2 MHz, MICROCONTROLLER, CDIP28 |
| MC908QB4MDT | 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDSO16 |
| MC908QY2AVDWE | 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDSO16 |
| MK2745-20SLF | 108 MHz, VIDEO CLOCK GENERATOR, PDSO16 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MPC8270ZUB | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:PowerQUICC II⑩ Family Hardware Specifications |
| MPC8270ZUE | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:PowerQUICC II⑩ Family Hardware Specifications |
| MPC8270ZUI | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:PowerQUICC II⑩ Family Hardware Specifications |
| MPC8270ZUM | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:PowerQUICC II⑩ Family Hardware Specifications |
| MPC8270ZUP | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:PowerQUICC II⑩ Family Hardware Specifications |
发布紧急采购，3分钟左右您将得到回复。