ASYNCHRONOUS MULTI-COMMUNICATION BUS SEQUENCE

摘要

ASYNCHRONOUS MULTI-COMMUNICATION BUS SEQUENCER An intersystem communication control system in an intersystem link (ISL) unit is provided to accommodate the simultaneous bidirectional transfer of binary coded information between communication busses in a data processing system, wherein the plural communication busses are electrically interconnected by ISL unit twins, and information may be transferred between plural communication busses asynchronously.