公开(公告)号：EP0031501A3

公开(公告)日：1981-08-19

申请号：EP80107635

申请日：1980-12-04

申请人： International Business Machines Corporation

发明人： Bantz, David Frederick ,  Evangelisti, Carlo John ,  Nelson, Robert Arthur

IPC分类号： G06F11/26

CPC分类号： G06F11/3648 ,  G01R31/31705 ,  G01R31/318555 ,  G06F11/2236

摘要： An arrangement is described comprising a diagnostic computer (11) connected to a host computer (12) for the purpose of troubleshooting the host computer's hardware and software. The arrangement includes an interface unit (13) comprising specific controls (31, 33, 35) with transfer and mask registers between the diagnostic computer and the host, and control units (22, 23) in the diagnostic computer, to perform functions required by the user of the system. The arrangement is specifically designed for use with a host computer comprising a level-sensitive scan (LSSD) register.