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AR# 2571

PROMs: What is the unprogrammed/default state of each byte address in an XC1700 PROM?


Urgency: Standard

General Description

The question often arises as to what the unprogrammed

state of an XC1700/D/L/E PROM is.


The unprogrammed state of each byte address is 'FFH', or in

other words, each bit is programmed to a '1'. This includes

the byte addresses that control the PROM programmable reset

polarity, which causes the polarity to default to active

HIGH reset.

AR# 2571
Date Created 08/21/2007
Last Updated 05/08/2014
Status Archive
Type General Article