ST EVALSPEAr320PLC MII自动模式评估应用方案

ST公司的SPEAr320是具有ARM926内核的嵌入MPU,最适合用于工厂自动化和消费类电子产品.功能强大的ARM926EJ-S处理器工作频率高达333MHz,具有高性能的8路DMA,32KB ROM和8KB SRAM,LPDDR-333/DDR2-666 外接存储器接口,SDIO/MMC 卡接口以及串行闪存接口(SMI),外设支持TFT/STN LCD控制器,各种功能的触摸屏,支持1Msps的8路10位ADC和4xPWM定时器.主要用在可编程逻辑控制器,工厂自动化和打印机.而EVALSPEAr320PLC评估板包括CPU板和MII模式应用板.本文介绍了CPU板和MII模式应用板主要特性,方框图,布局图以及MII模式应用板的详细电路图.

This user manual describes the implementation of the SPEAr320PLC evaluation board (order code: EVALSPEAr320PLC). This evaluation board can be used to evaluate the SPEAr320 microprocessor with a variety of devices and especially its Media Independent Interface (MII) Automation mode.

The EVALSPEAr320PLC evaluation board kit comprises two boards:

CPU board

MII mode application board

The SPEAr320 microprocessor is mounted on the CPU board that is plugged on the MII mode application board.

The application board is equipped with two Ethernet, three RS-232, one RS-485, two CAN, SPI, I²C communication interfaces and MicroSD card socket with SDIO interface. There are also two general-purpose push-buttons, four LEDs, a temperature sensor and a potentiometer available for the user interface.
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