Structure and function of a general purpose input output processor
نویسندگان
چکیده
This paper describes a processor architecture designed specifically to perform input/output and interfacing functions for any central-processor-peripheral configuration. This architecture is justified on the basis of functional I/O requirements which are discussed in detail. This processor is microprogrammable with a writeable control store, allowing dynamic configuration of the processor for different input/ output and interfacing applications. Underlying the microcontrol is a ROM-resident nanoprogram which performs the complex timing, handshaking, and bookkeeping control tasks. The processor architecture is modular
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