General purpose input/output controller

Multiplex communications – Pathfinding or routing – Switching a message which includes an address header

Reexamination Certificate

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Details

C370S463000, C326S038000, C326S062000, C710S008000, C710S062000

Reexamination Certificate

active

09847963

ABSTRACT:
The present invention permits an I/O port to be used with a variety of different I/O devices, regardless of their device type implementation, such as tri-state I/O devices, pull-up I/O devices, or pull-down I/O devices. Thus, one set of pins may be used for various different I/O devices.

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