基于GAL的VME总线接口电路及程序设计

Design of Interface Circuitry Based on GAL Chipfor VME Bus

根据VME总线规范和协议要求,基于GAL芯片进行了VME总线地址译码、数据读写及中断控制接口电路的设计,完成了电路板设计和研制,试验研究表明其功能满足要求,文中所提出的设计思路方法合理可行。

A design of slave VMEbus interface circuitry based on GAL chip has been introduced briefly in this paper. This interface cireuitry can support 16 bit single cycle data transfer. It is also able to request interrupt and read interrupt data. The experiment with a VMEBus system is completed, in which the circuitry is used as channels for data transfer. The experiment results show that the circuitry achieves the expected functions.