原标题：Freescale MCF54418工业网络连接解决方案

　　freescale公司的MCF5441x系列是集成了EMAC和MMU的Version 4 ColdFire®内核,具有MCU和MPU性能,包括集成的模拟电路,L2交换和双以太网.增加了Linux和MQX RTOS以及基于Eclipse的CodeWarrior IDE.器件在250MHz的性能高达385 Dhrystone 2.1 MIPS,系统可从NOR, NAND, SPI flash, EEPROM或FRAM引导,主要用在连接, EtherCAT®,IEEE® 1588,消费类电子如VoIP,工业如电梯,HVAC,以太网到串行连接,医疗电子和马达控制等.本文介绍了MCF5441x系列主要特性,方框图以及TWR-MCF5441X-KIT评估模块主要特性,方框图,电路图.

　　The MCF5441x offers MCU peripherals with MPU performance, including integrated analog, an L2 switch and dual ethernet. Add Linux and MQX RTOS, plus Eclipse-based CodeWarrior IDE and you’ve got a powerful development package for network-connected industrial applications.

　　MCF5441x主要特性:

　　• Version 4 ColdFire® Core with EMAC and MMU

　　• Up to 385 Dhrystone 2.1 MIPS @ 250 MHz

　　• 8 Kbytes instruction cache and 8 Kbytes data cache

　　• 64 Kbytes internal SRAM dual-ported to processor local bus and other crossbar switch masters

　　• System boot from NOR, NAND, SPI flash, EEPROM, or FRAM

　　• Crossbar switch technology (XBS) for concurrent access to peripherals or RAM from multiple bus masters

　　• 64-channel DMA controller

　　• SDRAM controller supporting full-speed operation from a single x8 DDR2 component up to 250 MHz

　　• 32-bit FlexBus external memory interface for RAM, ROM, MRAM, and programmable logic

　　• USB 2.0 host controller

　　• USB 2.0 host/device/On-the-Go controller

　　• 8-bit single data rate ULPI port usable by the dedicated USB host module or the USB host/device/OTG module

　　• Dual 10/100 Ethernet MACs with hardware CRC checking/generation, IEEE 1588-2002 support, and optional Ethernet switch

　　• CPU direct-attached hardware accelerator for DES, 3DES, AES, MD5, SHA-1, and SHA-256 algorithms

　　• Random number generator

　　• Enhanced Secure Digital host controller for SD, SDHC, SDIO, MMC, and MMCplus Cards

　　• Two ISO7816 smart card interfaces

　　• Two FlexCAN modules

　　• Six I2C bus interfaces with DMA support in master mode

　　• Two synchronous serial interfaces

　　• Four 32-bit timers with DMA support

　　• Four programmable interrupt timers

　　• 8-channel, 16-bit motor control PWM timer

　　• Dual 12-bit ADCs with shared input channels and multiple conversion trigger sources

　　• Dual 12-bit DACs with DMA support

　　• 1-wire module with DMA support

　　• NAND flash controller

　　• Real-time clock with 32-kHz oscillator, 2 KB standby SRAM, and battery backup supply Input

　　• Up to four DMA-supported serial peripheral interfaces (DSPI)

　　• Up to ten UARTs with single-wire mode support

　　• Up to five external IRQ interrupts and 2 external DMA request/acknowledge pairs

　　• Up to 16 processor local bus Rapid GPIO pins

　　• Up to 87 standard GPIO pins

　　MCF5441x目标应用:

　　Connectivity

　　EtherCAT®

　　IEEE® 1588

　　Consumer

　　Voice-over-Internet Protocol (VoIP)

　　Industrial

　　Access Panels, Elevators, Security, HVAC

　　Ethernet to Serial Connectivity Devices

　　Networked Control Power Grid Controller

　　Medical

　　Ventilators and Respirators

　　Defibrillators

　　Non-Portable, Data Analysis and processing

　　Motor Control

　　Up to 2 Motors, Low Voltage

　　图1.MCF5441x方框图

　　TWR-MCF5441X-KIT评估模块

　　The TWR-MCF5441X-KIT module is part of the Freescale Tower System, a modular development platform that enables rapid prototyping and tool re-use through reconfigureable hardware.

　　The TWR-MCF5441X-KIT features the MCF54418 microprocessor which offers MCU peripherals with MPU performance, including integrated analog, an L2 switch and dual ethernet. Add Linux and MQX RTOS, plus Eclipse-based CodeWarrior IDE and you’ve got a powerful development package for network-connected industrial applications.

　　The TWR-MCF5441X platform provides and evaluation system for the Freescale MCF5441x ColdFire V4m embedded microprocessor family. The MCF54418 is the superset device in the family and is the processor featured on this platform. This allows evaluation and development for the entire MCF5441x family on an existing Tower system.

　　The TWR-MCF5441X provides hardware to evaluate as many of the configurations of the MCF5441x family as possible.

　　TWR-MCF5441X-KIT评估模块主要特性:

　　Tower compatible processor board

　　MCF54418 in a 256 MAPBGA package

　　DDR2 SDRAM (128 MByte)

　　A NAND Flash memory device (256MByte)

　　Two RS232 headers (2x5 pins)

　　Standard 26-pin BDM Header

　　MCF5441X Tower Module Hardware Specification Page 6 of 31

　　MC9S08JM60 based Open Source BDM (OSBDM) circuit

　　Standard 6-pin BKGD/MS Header

　　MMA7361L three-axis accelerometer

　　Wire Digital Temperature Sensor

　　Four LEDs

　　DIP Switches and push buttons for user input

　　Potentiometer

　　Audio Speaker (Header Only) uses LM4889 audio power amplifier.

　　图2.TWR-MCF5441X-KIT评估模块外形图

　　图3.TWR-MCF5441X-KIT评估模块方框图