VIC64实现ADSP2106x与VMEbus的接口

Using VIC64to Realize the Interface between ADSP2106x and VMEbus

对于将DSP与标准总线联系起来的开发,现在一般是基于VME和CPCI背板总线的应用开发。对于VME总线,用户可以根据特定要求自行设计接口电路,比如只实现从模块访问。但专业公司的现成ASIC一般提供了完全的主、从模块VME总线界面,用户也可以考虑采用。本文介绍了一种使用Cypress公司的VME桥接芯片VIC64实现SHARCAD-SP2106x与VMEbus接口的方法,以VIC64为例讲述了它进行主模块操作,从模块操作,块传输,中断处理的过程,并且就VIC64如何连接ADSP2016x与VME总线的问题作了详细设计,给出了电路框图和逻辑设计过程。

For the development of connecting DSP with standard bus it is usually the application on the base of VME or CPCI back-plane bus now.For VMEbus,user themselves could desig n interface circuit according to particular demand such as only slave interface.But some available IC of professional company provides entire master and slave interface.User could also take it into account.The paper introduces a method of using VIC64of Cypress to realize the interface bwteen ADSP2106x and VMEbus.For example of VIC64,the process of master operation,slave operation,block transfer and interrupt manag ement is narrated.Further more,the pa-per discusses how to connect VIC64to SHARC DSP (ie.ADSP2106x)detailedly,with circuit block diag ram and log ic desig n process g iven.