ST SPEAr600 MPU嵌入式VoIP解决方案
ST 公司的SPEAr600 是具有双ARM926EJ-S核的嵌入式MPU, 性能高达733 DMIPS,支持灵活的存储器,有功能强大的连接特性和可编程的LCD接口. ARM926EJ-S内核的工作频率高达333MHz,其中的MMU支持虚拟的存储器管理,是系统能和Linux操作系统兼容.主要用在需要大量计算的应用中如企业VoIP设备,可编逻辑控制器(PLC),医疗实验室/诊断设备,无线接入设备,家用电器等.本文介绍SPEAr600主要特性,方框图, 典型系统架构图以及EVALSPEAR600评估板主要特性,电路图和材料清单(BOM).
The SPEAr600 is a member of the SPEAr family of embedded MPUs for networked devices, it is based on dual ARM926EJ-S processors (up to 333 MHz), widely used in applications where high computation performance is required.
Both processors have an MMU supporting virtual memory management and making the system compliant with the Linux operating system. They also offer 16 KBytes of data cache, 16 KBytes of instruction cache, JTAG and ETM (embedded trace macro-cell) for debug operations.
To expand its range of target applications, SPEAr600 can be extended by adding additional peripherals through the external local bus (EXPI interface).
SPEAr600主要特性:
■ Dual ARM926EJ-S core up to 333 MHz:
– Each with 16 Kbytes instruction cache + 16 Kbytes data cache
■ High performance 8-channel DMA
■ Dynamic power saving features
■ Up to 733 DMIPS
■ Memory:
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