Using microcode to correct ECC errors in a processor

Details Using microcode to correct ECC errors in a processor Using microcode to correct ECC errors in a processor

2005-08-23

2005-08-23

Torres, Joseph D. (Department: 2133)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

C714S774000

Reexamination Certificate

active

06934903

ABSTRACT:
An apparatus may include an ECC check circuit configured to detect an ECC error in response to an access to first data in a memory and a microcode unit. The microcode unit is coupled to receive an indication that the ECC check circuit has detected the ECC error. In response to the indication, the microcode unit is configured to dispatch a microcode routine stored by the microcode unit. The microcode routine includes instructions which, when executed, correct the ECC error in the memory. In another embodiment, a processor includes the microcode unit and execution circuitry. A method is also contemplated. An access is performed to first data in a memory. An ECC error is detected in response to the access. A microcode routine stored by a microcode unit is dispatched in response to the detecting of the ECC error. The microcode routine includes instructions which, when executed, correct the ECC error in the memory.

REFERENCES:
patent: 4995041 (1991-02-01), Hetherington et al.
patent: 5528608 (1996-06-01), Shimizume
patent: 5812564 (1998-09-01), Bonke et al.
patent: 5848076 (1998-12-01), Yoshimura
patent: 5912906 (1999-06-01), Wu et al.
patent: 5978952 (1999-11-01), Hayek et al.
patent: 6101614 (2000-08-01), Gonzales et al.
patent: 6175941 (2001-01-01), Poeppelman et al.

Affiliated with

Also associated with

Rating

Using microcode to correct ECC errors in a processor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Using microcode to correct ECC errors in a processor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Using microcode to correct ECC errors in a processor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3462222