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Serial Data Transfer Protocol Between Master and Slave Microprocessors

IP.com Disclosure Number: IPCOM000055346D
Original Publication Date: 1980-Jul-01
Included in the Prior Art Database: 2005-Feb-13

Publishing Venue

IBM

Related People

Authors:
Sweet, MD [+details]

Abstract

A serial data transfer protocol is provided for the serial transfer of data between a master microprocessor and a plurality of slave microprocessors. The basic advantages of this serial data transfer protocol is that it provides an interrupt-proof protocol which uses only a three-wire interface. In order to achieve these advantages, the protocol must be limited to a transfer interface wherein only the master microprocessor can initiate a communication.