ADI ADSP－2156x系列SHARC处理器开发方案

ADI公司的ADSP-2156x系列SHARC处理器是基于SHARC+®单核,具有Super Harvard架构,是32位/40位/64位浮点处理器,具有大容量片上SRAM,多种内部总线消除输入/输出(I/O)瓶颈,具有创新的数字音频接口(DAI),最适合用在高性能音频/浮点应用.SHARC+处理核新增加的功能包括缓存增强功能和分支预测,而同时保持了以前SHARC产品的指令集功能.SHARC+处理器集成了丰富的业界一流系统外设和存储器,是需要相似于精简指令集(RISC)编程的应用平台的选择,并支持多媒体和一流边沿信号处理.这些应用有多种市场包括汽车电子,专业音频,以及需要高浮点性能的基于工业的应用.例如汽车电子市场的音频放大器,音响主机, ANC/RNC,后座娱乐设备, 数字驾驶舱以及消费类电子市场的扬声器,条形音响,AVR, 会议系统,混音控制台,麦克风阵列和耳机.本文介绍了ADSP-2156x系列系统特性和框图,SHARC处理器框图,SHARC+SIMD核框图以及评估板组合套装EV-21569-EZKIT(由 EV-21569-SOM 模块系统(SOM)板和EV-SOMCRR-EZKIT 载板组成)主要特性和电路图.

Reaching speeds of up to 1 GHz, the ADSP-2156x processorsare members of the SHARC® family of products. The ADSP-2156x processor is based on the SHARC+® single core. TheADSP-2156x SHARC processors are members of the SIMDSHARC family of digital signal processors (DSPs) that featureAnalog Devices, Inc., Super Harvard Architecture. These 32-bit/40-bit/64-bit floating-point processors are optimized for

high performance audio/floating-point applications with largeon-chip static

random-access memory (SRAM), multiple internalbuses that eliminate input/output (I/O)

bottlenecks, andinnovative digital audio interfaces (DAI). New additions to theSHARC+

core include cache enhancements and branch prediction,while maintaining instruction set

compatibility to previousSHARC products.

By integrating a rich set of industry-leading system peripheralsand memory, the SHARC+ processor is the platformof choice for applications that require programmabilitysimilar to reduced instruction set computing (RISC), multimediasupport, and leading edge signal processing in oneintegrated ...