Freescale公司的MCF51AG128是32位ColdFire微控制器,内核提供50 MHz的内核速度和25 MHz的总线速度,提供带有直接存储器访问(DMA)和iEvent模块,提供带有直接存储器访问(DMA)和iEvent模块配备与其先进的三相电机控制的需求相符的外设组合和系统安全和完整性功能.主要用在智能家电和工业应用.本文介绍了MCF51AG128主要特性和框图,以及采用MCF51AG128无传感器三相BLDC马达演示板特性,框图,软件流程图和电路图.

The MCF51AG128 is a member of the ColdFire® family of32-bit variable-length reduced instruction set (RISC)microcontroller. This document provides an overview of theMCF51AG128 series MCUs, focusing on its highlyintegrated and diverse feature set.

The MCF51AG128 derivative are low-cost, low-power, andhigh-performance 32-bit ColdFire V1 microcontroller units(MCUs) designed for industrial and appliance applications. Itis an ideal upgrade for designs based on the MC9S08AC128series of 8-bit microcontrollers.

MCF51AG128主要特性:

• 32-bit Version 1 ColdFire® central processor unit (CPU)
– Up to 50.33 MHz ColdFire CPU from 2.7 V to 5.5 V
– Provide 0.94 Dhrystone 2.1 DMIPS per MHzperformance when running from internal RAM (0.76
DMIPS per MHz when running from flash)
– Implements Coldfire Instruction Set Revision C(ISA_C)
• On-chip memory
– Up to 128 KB flash memory read/program/erase overfull operating voltage and temperature
– Up to 16 KB random access memory (RAM)
– Security circuitry to prevent unauthorized access toRAM and flash contents
• Power-Saving Modes
– Three ultra-low power stop modes and reduced powerwait mode
– Peripheral clock enable register can disable clocks tounused modules, thereby reducing currents
• System Protection
– Advanced independent clocked watchdog (WDOG)with features like, robust refresh mechanism, windowedmode, high granulation timeout, fast test of timeout, andalways forces a reset大电流电感

 1/7    1 2 3 4 5 6 下一页 尾页