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介绍一种以微处理器为基础的通用接口总线译码器，该译码器可提供多达144个TTL电平逻辑输出口，所有输出口全部可编程，并可由控制器的GP－IB／IEEE－488接口所驱动。译码器的所有功能由8031完成。
A microprocessor-based universal interface bus decoder is introduced. The decoder provides up to 144 TTL-level logic outputs. All outputs are fully programmable and controlled by the controller’s GP-IB / IEEE-488 interface driven. All the functions of the decoder are done by the 8031.