Data processing: software development – installation – and managem – Software program development tool – Testing or debugging
Reexamination Certificate
2011-08-09
2011-08-09
Vo, Ted T (Department: 2191)
Data processing: software development, installation, and managem
Software program development tool
Testing or debugging
Reexamination Certificate
active
07996821
ABSTRACT:
A data processor having a debugging aid function capable of monitoring a plurality of kinds of internal buses from the outside and identifying each of the buses monitored is provided. A central processing unit (CPU), a debugging aid module, and other circuit modules are mounted on a semiconductor chip. The debugging aid module selects an information transmitting path in accordance with a trace condition from a plurality of information transmitting paths used for the operation of a central processing unit (CPU) or the like, holds trace information obtained according to the trace condition from the selected information transmitting path together with attribute information of the trace information in a buffer circuit, and outputs the information serially to the outside of the semiconductor chip. A plurality of kinds of internal buses can be monitored on the outside, and each of the buses monitored can be identified. The trace information and its attribute information is output serially from the same external terminal.
REFERENCES:
patent: 5737516 (1998-04-01), Circello et al.
patent: 5964893 (1999-10-01), Circello et al.
patent: 6148381 (2000-11-01), Jotwani
patent: 6378064 (2002-04-01), Edwards et al.
patent: 6530047 (2003-03-01), Edwards et al.
patent: 6732307 (2004-05-01), Edwards
patent: 7003763 (2006-02-01), Sudo et al.
patent: 2002/0188822 (2002-12-01), Edwards et al.
patent: 0942373 (1999-09-01), None
patent: 3-90955 (1991-04-01), None
patent: 04-350737 (1992-12-01), None
patent: 05-241880 (1993-09-01), None
patent: 07-230432 (1995-08-01), None
patent: 10-040130 (1998-02-01), None
patent: 11-219303 (1999-08-01), None
patent: 11/249929 (1999-09-01), None
Hohl et al., “Debug Support on the ColdFire Architecture”, May 1996, Motorola Inc., pp. 1-9.
Uhlig et al., “Trace-Driven Memory Simulation: A Survey”, Jun. 1997, ACM, pp. 128-170.
Matsui Shigezumi
Matsumoto Yasunori
Sudo Ryo
Hitachi ULSI Systems Co. Ltd.
Mattingly & Malur, PC
Renesas Electronics Corporation
Vo Ted T
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