Write once read only registers

Details Write once read only registers Write once read only registers

1997-06-16

1998-09-01

Geckil, Mehmet B.

Electrical computers and digital processing systems: memory

Storage accessing and control

Hierarchical memories

711152, G06F 1200

Patent

active

058023763

ABSTRACT:
The invention provides a simple I/O port which can be used to support a variety of system functions such as a revision, configuration or identification register. This port is provided with a means to be programmable once, upon system power-up so that changes to the port contents are possible, but only under controlled conditions. Once the register has been programmed, it will no longer respond to writes.

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