公开(公告)号：JP2001147836A

公开(公告)日：2001-05-29

申请号：JP2000301822

申请日：2000-10-02

Applicant: ST MICROELECTRONICS INC

Inventor： EDWARDS DAVID ALAN ,  RICH ANTHONY W

IPC: G06F11/28 ,  G06F11/36 ,  G06F15/78

Abstract: PROBLEM TO BE SOLVED: To provide an improved method and device for operating a debugging operation on a microcomputer. SOLUTION: This computer system is provided with at least one central processing unit and a memory unit connected with at least one central processor, and a set of watch points are decided on the computer system. Each watch point of the set of watch points is provided with a programmable preconditioned register and a programmable action register. Moreover, this computer system is provided with one set of latches and a selecting circuit for selecting one latch of the set of latches for connecting the output of the action register with the input of the selected latch.