Browse Prior Art Database

Programmable EPROM Card

IP.com Disclosure Number: IPCOM000040429D
Original Publication Date: 1987-Nov-01
Included in the Prior Art Database: 2005-Feb-02

Publishing Venue

IBM

Related People

Authors:
Frey, DE Kinter, HB Westcott, GR [+details]

Abstract

Many microprocessor-based systems use Erasable Programmable Read-Only Memory (EPROM) modules for software storage. The majority of these designs require EPROMs to be programmed prior to card assemly and then placed in sockets on the assembled card. A disadvantage occurs when the software in the EPROMs require an update, since EPROM modules must be extracted from the card, reprogrammed, labeled, and then placed back onto the card. The Programmable EPROM card eliminates the sockets by implementing a card that can be programmed directly from the card input/output pins (I/O) after card assembly. This card also reduces the card I/O requirement by eliminating direct connections from the EPROM module to the card I/O that previous designs required.