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| 型号： | SPC5643AF0MLU2 |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | MICROCONTROLLER, PQFP176 |
| 封装： | 24 X 24 MM, 1.40 MM HEIGHT, 0.50 MM PITCH, LEAD FREE, LQFP-176 |
| 文件页数： | 2/142页 |
| 文件大小： | 886K |
| 代理商： | SPC5643AF0MLU2 |
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MPC5644A Microcontroller Data Sheet, Rev. 4
Preliminary—Subject to Change Without Notice
Overview
Freescale Semiconductor
10
and 128- and 256-bit read data interfaces to flash memory. The module contains a prefetch controller which prefetches
sequential lines of data from the flash array into the buffers. Prefetch buffer hits allow no-wait responses.
The flash memory provides the following features:
Supports a 64-bit data bus for instruction fetch, CPU loads and DMA access. Byte, halfword, word and doubleword
reads are supported. Only aligned word and doubleword writes are supported.
Fetch Accelerator
— Architected to optimize the performance of the flash
— Configurable read buffering and line prefetch support
— Four-entry 256-bit wide line read buffer
— Prefetch controller
Hardware and software configurable read and write access protections on a per-master basis
Interface to the flash array controller pipelined with a depth of one, allowing overlapped accesses to proceed in parallel
for interleaved or pipelined flash array designs
Configurable access timing usable in a wide range of system frequencies
Multiple-mapping support and mapping-based block access timing (0-31 additional cycles) usable for emulation of
other memory types
Software programmable block program/erase restriction control
Erase of selected block(s)
Read page size of 128 bits (four words)
ECC with single-bit correction, double-bit detection
Program page size of 128 bits (four words) to accelerate programming
ECC single-bit error corrections are visible to software
Minimum program size is two consecutive 32-bit words, aligned on a 0-modulo-8 byte address, due to ECC
Embedded hardware program and erase algorithm
Erase suspend, program suspend and erase-suspended program
Shadow information stored in non-volatile shadow block
Independent program/erase of the shadow block
1.2.9
BAM
The BAM (Boot Assist Module) is a block of read-only memory that is programmed once by Freescale and is identical for all
MPC5644A MCUs. The BAM program is executed every time the MCU is powered-on or reset in normal mode. The BAM
supports different modes of booting. They are:
Booting from internal flash memory
Serial boot loading (A program is downloaded into RAM via eSCI or the FlexCAN and then executed)
Booting from external memory on external bus
The BAM also reads the reset configuration half word (RCHW) from internal flash memory and configures the MPC5644A
hardware accordingly. The BAM provides the following features:
Sets up MMU to cover all resources and mapping of all physical addresses to logical addresses with minimum address
translation
Sets up MMU to allow user boot code to execute as either Power Architecture embedded category (default) or as
Freescale VLE code
Location and detection of user boot code
Automatic switch to serial boot mode if internal flash is blank or invalid
Supports user programmable 64-bit password protection for serial boot mode
Supports serial bootloading via FlexCAN bus and eSCI using Freescale protocol
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SPC5643AF0MVZ1 | 功能描述:32位微控制器 - MCU 32BIT3MB Flsh192KRAM RoHS:否 制造商:Texas Instruments 核心:C28x 处理器系列:TMS320F28x 数据总线宽度:32 bit 最大时钟频率:90 MHz 程序存储器大小:64 KB 数据 RAM 大小:26 KB 片上 ADC:Yes 工作电源电压:2.97 V to 3.63 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:LQFP-80 安装风格:SMD/SMT |
| SPC5643LF0MLQ1 | 功能描述:32位微控制器 - MCU 32BIT 1M FLASH 128K RAM 120MHZ RoHS:否 制造商:Texas Instruments 核心:C28x 处理器系列:TMS320F28x 数据总线宽度:32 bit 最大时钟频率:90 MHz 程序存储器大小:64 KB 数据 RAM 大小:26 KB 片上 ADC:Yes 工作电源电压:2.97 V to 3.63 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:LQFP-80 安装风格:SMD/SMT |
| SPC5643LF0MLQ1R | 功能描述:32位微控制器 - MCU 32B 1M FLASH 128KRAM RoHS:否 制造商:Texas Instruments 核心:C28x 处理器系列:TMS320F28x 数据总线宽度:32 bit 最大时钟频率:90 MHz 程序存储器大小:64 KB 数据 RAM 大小:26 KB 片上 ADC:Yes 工作电源电压:2.97 V to 3.63 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:LQFP-80 安装风格:SMD/SMT |
| SPC5643LF0MLQ8 | 功能描述:32位微控制器 - MCU 32BIT1MFLASH 128K RAM RoHS:否 制造商:Texas Instruments 核心:C28x 处理器系列:TMS320F28x 数据总线宽度:32 bit 最大时钟频率:90 MHz 程序存储器大小:64 KB 数据 RAM 大小:26 KB 片上 ADC:Yes 工作电源电压:2.97 V to 3.63 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:LQFP-80 安装风格:SMD/SMT |
| SPC5643LF0MLQ8R | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:MPC5643L Microcontroller Data Sheet |
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