ST SPEAr320 MPU工厂自动化嵌入式开发方案

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.本文介绍了SPEAr320主要特性, 功能方框图, 系统典型架构图和EVALSPEAr320CPU SPEAr320 CPU评估板主要特性,方框图,电路图和材料清单.
The SPEAr320 is a member of the SPEAr family of embedded MPUs, optimized for industrial automation and consumer applications. It is based on the powerful ARM926EJ-S processor (up to 333 MHz), widely used in applications where high computation performance is required.
In addition, SPEAr320 has an MMU that allows virtual memory management -- making the system compliant with Linux operating system. It also offers 16 KB of data cache, 16 KB of instruction cache, JTAG and ETM (Embedded Trace Macrocell) for debug operations.
A full set of peripherals allows the system to be used in many applications, some typical applications being factory automation, printer and consumer applications.
SPEAr320主要特性:
■ ARM926EJ-S 333 MHz core
■ High-performance 8-channel DMA
■ Dynamic power-saving features
■ Configurable peripheral functions on 102 shared I/Os.
■ Memory:
– 32 KB ROM and 8 KB internal SRAM
– LPDDR-333/DDR2-666 external memory interface
– SDIO/MMC card interface
– Serial Flash memory interface (SMI)
– Flexible static memory controller (FSMC) up to 16-bit data bus width, supporting NAND Flash
– External memory interface (EMI) up to 16- bit data bus width, supporting NOR Flash and FPGAs
■ Security
– Cryptographic accelerator
■ Connectivity
– 2 x USB 2.0 Host
– 1 x USB 2.0 Device
– 2 x fast Ethernet MII/SMII ports
– 2 x CAN interface
– 3 x SSP Synchronous serial port (SPI, Microwire or TI protocol)
– ...