基于MPC5125设计的低功耗MCU开发技术

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本文介绍MPC5125主要特性,功能方框图,以及TWR-MPC5125 MPU开发模块主要特性,方框图以及元件布局图.
MPC5125是Freescale 公司的低成本低功耗32位MCU,集成了高性能e300 CPU核,工作频率400MHz,32KB 片内SRAM,USB 2.0 OTG控制器以及DMA子系统,DDR1, DDR2, 低功耗移动DDR (LPDDR),和1.8 V/3.3 V SDR DRAM存储器控制器,以及多种接口.MPC5125目标应用在工业网络网关(路由器)和转换器,HVAC中央管理系统,POS终端,智能医院和远程医疗网关以及消防和告警监视系统等.
The MPC5125, a cost and power consumption optimized, automotive, industrial networking, and human-machine interface (HMI) solution. It helps reduce your development time, provides more communication peripherals at a competitive price and delivers ultra-low power without sacrificing performance.

The MPC5125 integrates a high performance e300 CPU core based on the Power Architecture? Technology with a rich set of peripheral functions focused on communications and systems integration.

MPC5125主要特性:

Major features of the MPC5125 are as follows:

? e300 Power Architecture processor core (enhanced version of the MPC603e core), operates as fast as 400 MHz

? Low power design

? Display interface unit (DIU)

? DDR1, DDR2, low-power mobile DDR (LPDDR), and 1.8 V/3.3 V SDR DRAM memory controllers

? 32 KB on-chip SRAM

? USB 2.0 OTG controller with ULPI interface

? DMA subsystem

? Flexible multi-function external memory bus (EMB) interface

? NAND flash controller (NFC)

? LocalPlus interface (LPC)

? 10/100Base Ethernet

? MMC/SD/SDIO card host controller (SDHC)

? Programmable serial controller (PSC)

? Inter-integrated circuit (I2C) communication interfaces

? Controller area network (CAN)

? J1850 byte data link controller (BDLC) interface

? On-chip real-time clock (RTC)

? On-chip temperature sensor

? IC Identification module (IIM)

MPC5125目标应用:

Fieldbus to Ethernet Gateways

Robotics

Industrial Networking Gateways (routers) and converters

High End Lighting Control

Fire & Alarm Supervisory Controllers

HVAC Central Management System

Digital Signage

Point of Sales Terminal

Hospital Bed Control

Smart Hospital and Tele-Health Gateways




图1.MPC5125简化方框图

TWR-MPC5125 MPU模块

The MPC5125 Tower System is based on Freescale’s MPC5125 microprocessor. The board provides on-board DDR2 SDRAM, NAND FLASH,CAN ports, USB 2.0, 10/100 Ethernet, HDMI,USB Debug Port.All powered from a 5 Volt wall mount power supply.

The TWR-MPC5125 MPU 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-MPC5125 features the MPC5125, a cost and power consumption optimized, industrial networking, automotive, and human-machine interface (HMI) solution. It helps reduce your development time, provides more communication peripherals at a competitive price and delivers ultra-low power without sacrificing performance.

TWR-MPC5125 MPU模块主要特性:

TWR-MPC5125 MPU Serial Card

4GB of MLC NAND flash

256 MB of DDR2

HDMI port with HDMI-DVI adaptor

USB2.0 OTG host/device port with 4:1 USB hub

On-board microphone and audio stereo out jack

10/100BaseT Ethernet port

CAN 2.0 A/B port

SD card interface Includes out-of-the-box experience including Quick Start Guide, auto play demo and board flashing lab

Board boots to auto play graphical demo driving display over HDMI port

Interrupt auto play demo for boot to MQX or Linux

Managed website to download desired demos/labs

Board flashing lab explains how to download demos/labs

Board control using keyboard/mouse over USB hub

TWR-SER Peripheral Module Features:

RS232 and RS485

Ethernet

CAN

USB supporting host, device and OTG modes

TWR-ELEV Features:

supports external communications interfaces

includes power regulation circuitry with standardized bus

four card-edge PCI Express connectors

two 80-pin connectors on the outside to support debugging or expansion to LCD module

Kit Contains

TWR-MPC5125 MPU serial module

TWR-SER - Serial module that features Ethernet, USB, RS232/485 and CAN

TWR-ELEV - Two elevator boards that provide structural integrity, communications interfaces, power regulation circuitry with standardized bus

HDMI to DVI-D Adaptor

Dual TypeA to MiniB USB Cable

MiniA to Female TypeA USB Cable

TypeA to DC Plug Cable

An interactive DVD with lab tutorials, software, training and collateral

A printed guide on how to quickly get started using the development kit.




图2.TWR-MPC5125 MPU模块外形图



图3.TWR-MPC5125 MPU模块方框图



图4.TWR-MPC5125 MPU模块元件布局图(顶层)



图4.TWR-MPC5125 MPU模块元件布局图(底层)