參數(shù)資料
型號: MPC8280CZUUPEA
廠商: Freescale Semiconductor
文件頁數(shù): 20/83頁
文件大?。?/td> 0K
描述: IC MPU POWERQUICC II 480-TBGA
標準包裝: 21
系列: MPC82xx
處理器類型: 32-位 MPC82xx PowerQUICC II
速度: 450MHz
電壓: 1.5V
安裝類型: 表面貼裝
封裝/外殼: 480-LBGA
供應商設備封裝: 408-TBGA(37.5x37.5)
包裝: 托盤
MPC8280 PowerQUICC II Family Hardware Specifications, Rev. 2
Freescale Semiconductor
27
Clock Configuration Modes
Within each mode, the configuration of bus, core, PCI, and CPM frequencies is determined by seven bits
during the power-on reset—three hardware configuration pins (MODCK[1–3]) and four bits from
hardware configuration word[28–31] (MODCK_H). Both the PLLs and the dividers are set according to
the selected clock operation mode as described in the following sections.
7.1
Local Bus Mode
This table lists clock configurations for the SoC in local bus 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.
NOTE
Clock configurations change only after PORESET is asserted.
Table 17. SoC Clocking Modes
Pins
Clocking Mode
PCI Clock
Frequency Range
(MHZ)
Reference
PCI_MODE
PCI_CFG[0] PCI_MODCK1
1 Determines PCI clock frequency range. See Section 7.2, “PCI Host Mode,” and Section 7.3, “PCI Agent Mode.”
1
Local bus
0
PCI host
50–66
0
1
25–50
0
1
0
PCI agent
50–66
0
1
25–50
Table 18. Clock Configurations for Local Bus Mode1
Mode2
Bus Clock3
(MHz)
CPM
Multiplication
Factor4
CPM Clock
(MHz)
CPU
Multiplication
Factor5
CPU Clock
(MHz)
MODCK_H-MODCK[1:3]
Low
High
Low
High
Low
High
Default Modes (MODCK_H= 0000)
0000_000
37.5
133.3
3
112.5
400.0
4
150.0
533.3
0000_001
33.3
133.3
3
100.0
400.0
5
166.7
666.7
0000_010
37.5
100.0
4
150.0
400.0
4
150.0
400.0
0000_011
30.0
100.0
4
120.0
400.0
5
150.0
500.0
0000_100
60.0
167.0
2
120.0
334.0
2.5
150.0
417.5
0000_101
50.0
167.0
2
100.0
334.0
3
150.0
501.0
0000_110
60.0
160.0
2.5
150.0
400.0
2.5
150.0
400.0
0000_111
50.0
160.0
2.5
125.0
400.0
3
150.0
480.0
Full Configuration Modes
0001_000
50.0
167.0
2
100.0
334.0
4
200.0
668.0
相關PDF資料
PDF描述
GMC35DTEI CONN EDGECARD 70POS .100 EYELET
MPC8572EVTAVNE MPU POWERQUICC III 1023FCPBGA
IDT709279L15PF8 IC SRAM 512KBIT 15NS 100TQFP
AMC49DRAS-S734 CONN EDGECARD 98POS .100 R/A PCB
MPC8572ELVTAULE MPU POWERQUICC III 1023FCPBGA
相關代理商/技術參數(shù)
參數(shù)描述
MPC8280CZUUPEA 制造商:Freescale Semiconductor 功能描述:IC 32-BIT MPU 450MHZ 480-TBGA
MPC8280EC 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:PowerQUICC II Family Hardware Specifications
MPC8280VRB 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:PowerQUICC II⑩ Family Hardware Specifications
MPC8280VRE 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:PowerQUICC II⑩ Family Hardware Specifications
MPC8280VRI 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:PowerQUICC II⑩ Family Hardware Specifications