数控运动控制卡接口电路设计及其ISA模式应用

Design of Interface Circuit for CNC Motion Control Card Based on Dual-port RAM Chip IDT7005 and its Application in ISA Model

对IDT7005芯片及其仲裁逻辑作了介绍,设计了一种基于IDT7005芯片的数控运动控制卡接口电路,对ISA总线与双口RAM芯片IDT7005的接口电路设计和ispGAL20V8B的控制电路程序设计进行了讨论,数控机床运动控制卡采用该接口电路,数据传输准确,可靠性高。

This paper introduces IDT？005 chip and its arbitration logic designs an Interface circuit of NC motion control card based on IDI-？005 and discusses the Interface circuit design between ISA bus and dual-port RAM chip IDT7005 and control circuit program de- sign of ispGAL20VSB. This interface circuit has been used in CNC machine tool motion control card, with accuracy data transmission and high reliability.