Patent
1996-09-10
1999-02-02
Palys, Joseph
39518306, 39518401, G06F 1100
Patent
active
058676449
ABSTRACT:
User-configurable diagnostic hardware contained on-chip with a microprocessor for the purpose of debugging and monitoring the performance of the microprocessor. Method for using the same. A programmable state machine is coupled to on-chip and off-chip input sources. The state machine may be programmed to look for signal patterns presented by the input sources, and to respond to the occurrence of a defined pattern (or sequence of defined patterns) by driving certain control information onto a state machine output bus. On-chip devices coupled to the output bus take user-definable actions as dictated by the bus. The input sources include user-configurable comparators located within the functional blocks of the microprocessor. The comparators are coupled to storage elements within the microprocessor, and are configured to monitor nodes to determine whether the state of the nodes matches the data contained in the storage elements. By changing data in the storage elements, the programmer may change the information against which the state of the nodes is compared and also the method by which the comparison is made. The output devices include counters. Counter outputs may be used as state machine inputs, so one event may be defined as a function of a different event having occurred a certain number of times. The output devices also include circuitry for generating internal and external triggers. User-configurable multiplexer circuitry may be used to route user-selectable signals from within the microprocessor to the chip's output pads, and to select various internal signals to be used as state machine inputs.
REFERENCES:
patent: 3947823 (1976-03-01), Padegs et al.
patent: 4303990 (1981-12-01), Seipp
patent: 4425643 (1984-01-01), Chapman et al.
patent: 4431928 (1984-02-01), Skokan
patent: 4433413 (1984-02-01), Fasang
patent: 4446514 (1984-05-01), Brown et al.
patent: 4491907 (1985-01-01), Koeppen et al.
patent: 4500993 (1985-02-01), Jacobson
patent: 4598385 (1986-07-01), Kessels et al.
patent: 4622669 (1986-11-01), Pri-Tal
patent: 4674089 (1987-06-01), Poret et al.
patent: 4841232 (1989-06-01), Graham et al.
patent: 4868822 (1989-09-01), Scott et al.
patent: 4873666 (1989-10-01), Lefebvre et al.
patent: 4879646 (1989-11-01), Iwasaki et al.
patent: 4910417 (1990-03-01), El Gamal et al.
patent: 4912630 (1990-03-01), Cochcroft, Jr.
patent: 4924468 (1990-05-01), Horak et al.
patent: 4933897 (1990-06-01), Shankar et al.
patent: 4935719 (1990-06-01), McClure
patent: 4964033 (1990-10-01), Williams
patent: 4993027 (1991-02-01), McGraw et al.
patent: 5053700 (1991-10-01), Parrish
patent: 5059942 (1991-10-01), Burrows
patent: 5136590 (1992-08-01), Polstra et al.
patent: 5157673 (1992-10-01), Feldbrugge
patent: 5157781 (1992-10-01), Harwood et al.
patent: 5173619 (1992-12-01), Gaudenzi et al.
patent: 5202976 (1993-04-01), Hansen et al.
patent: 5206948 (1993-04-01), DeAngelis et al.
patent: 5210862 (1993-05-01), DeAngelis et al.
patent: 5226149 (1993-07-01), Yoshida et al.
patent: 5226153 (1993-07-01), DeAngelis et al.
patent: 5317711 (1994-05-01), Bourekas et al.
patent: 5327435 (1994-07-01), Warchol
patent: 5345580 (1994-09-01), Tamaru et al.
patent: 5375228 (1994-12-01), Leary et al.
patent: 5400345 (1995-03-01), Ryan, Jr.
patent: 5418452 (1995-05-01), Pyle
patent: 5425036 (1995-06-01), Liu et al.
patent: 5442641 (1995-08-01), Beranger et al.
patent: 5450349 (1995-09-01), Brown, III et al.
patent: 5452437 (1995-09-01), Richey et al.
patent: 5473754 (1995-12-01), Folwell et al.
patent: 5475815 (1995-12-01), Byers et al.
patent: 5479652 (1995-12-01), Dreyer et al.
patent: 5488688 (1996-01-01), Gonzales et al.
patent: 5504755 (1996-04-01), Nozuyama
patent: 5519715 (1996-05-01), Hao et al.
patent: 5526365 (1996-06-01), Whetsel
patent: 5528526 (1996-06-01), Klug et al.
patent: 5530804 (1996-06-01), Edginton et al.
patent: 5532174 (1996-07-01), Corrigan
patent: 5534798 (1996-07-01), Phillips et al.
patent: 5535331 (1996-07-01), Swoboda et al.
patent: 5541935 (1996-07-01), Waterson
patent: 5548775 (1996-08-01), Hershey
patent: 5550528 (1996-08-01), Offord et al.
patent: 5555428 (1996-09-01), Radigan et al.
patent: 5557619 (1996-09-01), Rapoport
patent: 5561761 (1996-10-01), Hicok et al.
patent: 5564041 (1996-10-01), Matsui et al.
patent: 5566300 (1996-10-01), Naoe
patent: 5579251 (1996-11-01), Sato
patent: 5579492 (1996-11-01), Gay
patent: 5586288 (1996-12-01), Dahlberg
patent: 5590354 (1996-12-01), Klapproth et al.
patent: 5598421 (1997-01-01), Tran et al.
patent: 5606564 (1997-02-01), Ho et al.
patent: 5606710 (1997-02-01), Hall et al.
patent: 5613144 (1997-03-01), Hall et al.
patent: 5623500 (1997-04-01), Whetsel, Jr.
patent: 5630048 (1997-05-01), La Joie et al.
patent: 5640508 (1997-06-01), Fujiwara et al.
patent: 5640542 (1997-06-01), Whitsel et al.
patent: 5644609 (1997-07-01), Bockhaus et al.
patent: 5699516 (1997-12-01), Sapir et al.
Montessoro et al. "General and Efficient Multiple List Traversal for Concurrent Fault Simulation", 1991 IEEE, pp. 43-48.
Marchioro et al. "Simulation of a Macro-pipelined Mutli-CPU Event Processor for Use in Fastbus", 1989 IEEE, pp. 1597-1601.
Bockhaus John W.
Brockmann Russell C.
Hunt Douglas B.
Knebel Patrick
Lesartre Gregg B.
Fromm Jeffery B.
Hewlett -Packard Company
Kelley Guy J.
Palys Joseph
Winfield Augustus W.
LandOfFree
System and method for on-chip debug support and performance moni does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method for on-chip debug support and performance moni, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for on-chip debug support and performance moni will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1125311