PROGRAM ASSIGNABLE I/O ADDRESSES FOR A COMPUTER

摘要

PROGRAM ASSIGNABLE I/O ADDRESSES FOR A COMPUTER A circuit for providing program assignable I/O addresses in a peripheral unit of a computer in which the initial I/O address is written to a register in the unit. The register receives the address information during the simultaneous presence of a memory write control signal and a particular address which is a duplicate of one which is in the ROM area of the computer's memory.