System and method for accelerated remapping of defective memory

Details System and method for accelerated remapping of defective memory System and method for accelerated remapping of defective memory

1996-11-07

1999-08-03

Cabeca, John W.

Electrical computers and digital processing systems: memory

Storage accessing and control

Shared memory area

711103, 711105, 711153, 711204, 711205, G06F 1116

Patent

active

059338520

ABSTRACT:
A computer system includes a memory requester that interfaces with a memory module that includes memory portions. A remapping table that maps each of the defective memory portions to a respective non-defective memory portion in the memory module is created and then stored. Also, a usage table that maps each of a subset of the defective memory portions to a respective non-defective memory portion is created and stored. The defective memory portions of the subset are selected based on which defective memory portions have been most recently used, i.e., requested. In response to receiving from the memory requester a request for access to a requested memory portion of the memory module, a determination is made whether the requested memory portion is one of the defective memory portions mapped in the usage table or remapping table. The non-defective memory portion to which the requested memory portion is mapped in either the usage table or the remapping table is accessed if the requested memory portion is defective, and the requested memory portion is accessed if the requested memory portion is not defective.

REFERENCES:
patent: 4980822 (1990-12-01), Brantley, Jr. et al.
patent: 5530960 (1996-06-01), Parks et al.
patent: 5802551 (1998-09-01), Komatsu et al.

Affiliated with

Also associated with

Rating

System and method for accelerated remapping of defective memory 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 accelerated remapping of defective memory , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for accelerated remapping of defective memory will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-860630