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參數(shù)資料
| 型號： | MCF547X |
| 廠商： | 飛思卡爾半導(dǎo)體(中國)有限公司 |
| 英文描述： | MCF547x Integrated Microprocessor Electrical Characteristics |
| 中文描述： | MCF547x集成的微處理器，電氣特性 |
| 文件頁數(shù)： | 8/28頁 |
| 文件大?。?/td> | 706K |
| 代理商： | MCF547X |
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MCF547x Integrated Microprocessor Electrical Characteristics, Rev. 2
Reset Timing Specifications
7
Reset Timing Specifications
Freescale Semiconductor
8
Table 9
lists specifications for the reset timing parameters shown in
Figure 5
Figure 5
shows reset timing for the values in
Table 9
.
Figure 5. Reset Timing
8
FlexBus
A multi-function external bus interface called FlexBus is provided on the MCF5472 with basic
functionality to interface to slave-only devices up to a maximum bus frequency of 66 MHz. It can be
directly connected to asynchronous or synchronous devices such as external boot ROMs, flash memories,
gate-array logic, or other simple target (slave) devices with little or no additional circuitry. For
asynchronous devices, a simple chip-select based interface can be used. The FlexBus interface has six
general purpose chip-selects (FBCS[5:0]). Chip-select FBCS0 can be dedicated to boot ROM access and
can be programmed to be byte (8 bits), word (16 bits), or longword (32 bits) wide. Control signal timing
is compatible with common ROM / flash memories.
Table 9. Reset Timing Specification
Num
Characteristic
66 MHz CLKIN
Units
Min
Max
R1
1
NOTES:
1
RSTI and FlexBus data lines are synchronized internally. Setup and hold
times must be met only if recognition on a particular clock is required.
Valid to CLKIN (setup)
8
—
nS
R2
CLKIN to invalid (hold)
1.0
—
nS
R3
RSTI to invalid (hold)
1.0
—
nS
CLKIN
R1
R3
R2
R1
RSTI
Mode Select
FlexBus
NOTE:
Mode selects are registered on the rising clock edge before
the cycle in which RSTI is recognized as being negated.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MCF547X_07 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:MCF547x ColdFire㈢ Microprocessor |
| MCF5480 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:MCF548x ColdFire㈢ Microprocessor |
| MCF5480CVR166 | 功能描述:微處理器 - MPU MCF548X V4ECORE MMU FPU 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 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型: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 |
| MCF5480CZP166 | 功能描述:微處理器 - MPU MCF548X V4ECORE MMU FPU 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 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型: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 |
| MCF5481 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:MCF548x ColdFire㈢ Microprocessor |
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