Excavating
Patent
1996-12-30
1999-02-23
Tu, Trinh L.
Excavating
371 511, 39518203, 39518506, 711 3, 711113, 711119, G06F 1100, G11C 2900
Patent
active
058752013
ABSTRACT:
Method and apparatus for detecting and correcting memory storage data errors in a system utilizing parity error detection. An error detected in the memory storage device results in a parity error being reported, thereby causing the corresponding address location to be deactivated. Once deactivated, no further reading or writing is performed at that address location for a predetermined time period. The parity error reporting and address deactivation is accomplished without an access time penalty and requires a reduced number of I/O pins.
REFERENCES:
patent: 4056844 (1977-11-01), Izumi
patent: 4130865 (1978-12-01), Heart et al.
patent: 4349871 (1982-09-01), Lary
patent: 4426681 (1984-01-01), Bacot et al.
patent: 4442487 (1984-04-01), Fletcher et al.
patent: 4445174 (1984-04-01), Fletcher
patent: 4464717 (1984-08-01), Keeley et al.
patent: 4521851 (1985-06-01), Trubisky et al.
patent: 4525777 (1985-06-01), Webster et al.
patent: 4551799 (1985-11-01), Ryan et al.
patent: 4586133 (1986-04-01), Steckler
patent: 4667288 (1987-05-01), Keeley et al.
patent: 4701844 (1987-10-01), Thompson et al.
patent: 4707784 (1987-11-01), Ryan et al.
patent: 4719568 (1988-01-01), Carrubba et al.
patent: 4755930 (1988-07-01), Wilson, Jr. et al.
patent: 4794521 (1988-12-01), Ziegler et al.
patent: 4807110 (1989-02-01), Pomerene et al.
patent: 4843542 (1989-06-01), Dashiell et al.
patent: 4860192 (1989-08-01), Sachs et al.
patent: 4984153 (1991-01-01), Kregness et al.
patent: 4985829 (1991-01-01), Thatte et al.
patent: 4992930 (1991-02-01), Gilfeather et al.
patent: 4992934 (1991-02-01), Portanova et al.
patent: 5023776 (1991-06-01), Gregor
patent: 5025365 (1991-06-01), Mathur et al.
patent: 5025366 (1991-06-01), Baror
patent: 5029070 (1991-07-01), McCarthy et al.
patent: 5058006 (1991-10-01), Durdan et al.
patent: 5095424 (1992-03-01), Woffinden et al.
patent: 5136696 (1992-08-01), Beckwith et al.
patent: 5148533 (1992-09-01), Joyce et al.
patent: 5193163 (1993-03-01), Sanders et al.
patent: 5197139 (1993-03-01), Emma et al.
patent: 5206945 (1993-04-01), Nishimukai et al.
patent: 5212781 (1993-05-01), Shah
patent: 5222224 (1993-06-01), Flynn et al.
patent: 5222244 (1993-06-01), Carbine et al.
patent: 5226146 (1993-07-01), Milia et al.
patent: 5241641 (1993-08-01), Iwasa et al.
patent: 5265232 (1993-11-01), Gannon et al.
patent: 5265235 (1993-11-01), Sindhu et al.
patent: 5276848 (1994-01-01), Gallagher et al.
patent: 5307477 (1994-04-01), Taylor et al.
patent: 5313602 (1994-05-01), Nakamura
patent: 5355467 (1994-10-01), MacWilliams et al.
patent: 5359723 (1994-10-01), Matthews et al.
patent: 5381544 (1995-01-01), Okazawa et al.
patent: 5386547 (1995-01-01), Jouppi
patent: 5392416 (1995-02-01), Doi et al.
patent: 5423016 (1995-06-01), Tsuchiya et al.
patent: 5490261 (1996-02-01), Bean et al.
patent: 5524233 (1996-06-01), Milburn et al.
patent: 5555382 (1996-09-01), Thaller et al.
patent: 5577259 (1996-11-01), Alferness et al.
patent: 5666513 (1997-09-01), Whittaker
patent: 5680571 (1997-10-01), Bauman
Dubois et al., "Effects of Cache Coherency in Multiprocessors", IEEE Transactions on Computers, vol. C-31, No. 11, Nov. 1982, pp. 1083-1099.
Wilson, Jr., "Hierarchical Cache/Bus Architecture for Shared Memory Multiprocessors", IEEE, 1987, pp. 244-252.
Sparacio, "Data Processing System With Second Level Cache", IBM Technical Disclosure Bulletin, vol. 21, No. 6, Nov. 1978, pp. 2468-2469.
Myers et al., "The Implementation", The 80960 Microprocessor Architecture, 1988, pp. 159-183.
Hinton et al., "Microarchitecture of the 80960 High-Integration Processors", Proceedings of the 1988 IEEE International Conference on Computer Design: VLSI in Computers and Processors--ICCD, 1988, pp. 362-365.
Bandyopadhyay et al., "Combining Both Micro-Code and Hardwired Control in RISC", Computer Architecture News, Mar. 1990, pp. 11-15. IEEE.
Bandyopadhyay et al., "Micro-Code Based RISC Architecture", 19th Southeastern Symposium on System Theory, Mar. 1987, pp. 411-414.
Bauman Mitchell A.
Federici James L.
Lucas Gary J.
Mackenthun Donald W.
Tu Trinh L.
Unisys Corporation
LandOfFree
Second level cache having instruction cache parity error control does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Second level cache having instruction cache parity error control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Second level cache having instruction cache parity error control will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-313239