Browse Prior Art Database

Method of Remotely Repairing Electronically Erasable Programmable Read Only Memory Devices

IP.com Disclosure Number: IPCOM000106050D
Original Publication Date: 1993-Sep-01
Included in the Prior Art Database: 2005-Mar-20
Document File: 2 page(s) / 38K

Publishing Venue

IBM

Related People

Clarke, RR: AUTHOR [+3]

Abstract

A technique is described whereby electronically erasable programmable read only memory (EEPROM) devices can be remotely repaired by utilizing a programming utility to check for defective bits for operation at the correct system level.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 79% of the total text.

Method of Remotely Repairing Electronically Erasable Programmable Read Only Memory Devices

      A technique is described whereby electronically erasable
programmable read only memory (EEPROM) devices can be remotely
repaired by utilizing a programming utility to check for defective
bits for operation at the correct system level.

      The concept is designed to eliminate the need to replace
defective EEPROM devices through an automatic test and repair
procedure.  The repair procedure is designed to be used in
conjunction with specific updating service devices [*]

      Typically, computer systems undergo an initial machine load
(IML) routine so as to initiate proper operation of a system.  The
concept described herein utilizes the IML operation to check the
EEPROM device for defective bits.  If any bits are found to be
defective, an instruction will automatically update the EEPROM device
from a file containing the correct and current level of information
required to operate the system.

      The routine first determines whether any updates are required
for any of the EEPROM devices used in the system.  It checks for any
EEPROM device part numbers which do not appear on a specific list of
the most current part numbers.  It also checks whether any EEPROM
devices have errors logged against them in the subsystem error log.
If any updates are required, the EEPROM update utility >*| is loaded
and an update is performed on all EEPROM devices in the system....