公开(公告)号：BR8600788A

公开(公告)日：1986-11-04

申请号：BR8600788

申请日：1986-02-25

Applicant: IBM

Inventor： BLEVINS BALLARD JOHN ,  KULPA WILLIAM GARRY ,  MATHIS JOSEPH RICHARD ,  MCCULLOUGH JOHN WARREN

IPC: G06F13/36 ,  G06F12/06

Abstract: Bus-to-bus converter (8) in a data processing system comprising a system bus (6) connecting a system storage unit to a central processing unit, said converter (8) connecting the system bus (6) to an I/O bus (10) to which are attached a plurality of randomly selected I/O devices. The converter (8) dynamically inserts appropriate address control information into messages transmitted from the I/O bus (10) to the system bus (6), whereby access can be denied to and from selected I/O devices.