參數(shù)資料
型號(hào)： MPC8280CVRMHBX
廠商： FREESCALE SEMICONDUCTOR INC
元件分類(lèi)： 微控制器/微處理器
英文描述： 32-BIT, 266 MHz, RISC PROCESSOR, PBGA516
封裝： 27 X 27 MM, 1 MM PITCH, PLASTIC, BGA-516
文件頁(yè)數(shù)： 29/80頁(yè)
文件大?。?/td> 1301K
代理商： MPC8280CVRMHBX
MPC8280 PowerQUICC II Family Hardware Specifications, Rev. 1.7
Freescale Semiconductor
35
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 “l(fā)ow” 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
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MPC8280CVRP 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:PowerQUICC II⑩ Family Hardware Specifications
MPC8280CVRT 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:PowerQUICC II⑩ Family Hardware Specifications
MPC8280CVVQLDA 功能描述:微處理器 - MPU 333 MHz 632.7 MIPS RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類(lèi)型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
MPC8280CVVUPE 制造商:Freescale Semiconductor 功能描述:
MPC8280CVVUPEA 功能描述:微處理器 - MPU 450 MHz 885 MIPS RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類(lèi)型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
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