ROBERT J. O'DELL, P.T.
Physical Therapy at James Casey St, Austin, TX

5233613, Aug 3, 1993

Jun 26, 1991

7/725233

Bruce R. Allen - Buda TX
Arthur B. Oliver - Austin TX
Robert W. O'Dell - Austin TX
James E. Bowles - Austin TX

Advanced Micro Devices, Inc. - Sunnyvale CA

G06F 1100

371 163

In a watchdog timer, the selected codes identifying the format of a watchdog timer algorithm, such as the intervals within which a watchdog timer status must be issued by the host processor, are supplied as hardwired preset codes in programmable fuse or read only memory cells that are adapted to be programmed, but are immune from ESD, power glitches and errant software. A programmable code indicating a programmable time interval is also stored in a register protected from errant software when the watchdog timer is enabled. A selector receives the preset code and the programmable code and selects an output code indicating the time interval within which the watchdog timer must be reset by a processor status signal. The selector can be programmed to select only the preset code by supplying a selector control signal through an element that is immune from electrostatic discharge, power glitches and errant software. Also, a code fixing the watchdog timer in an on state can be supplied with ESD-immune cells.

5014247, May 7, 1991

Dec 19, 1988

7/286200

Rudolph J. Albachten - Austin TX
Robert W. O'Dell - Austin TX

Advanced Micro Devices, Inc. - Sunnyvale CA

G11C 800

36523005

A dual port random access memory device having a memory location which has interfaces for allowing at least two devices to access a given memory location. The memory location is subdivided into at least two portions. One of the portions is a source and one of the portions is a destination. A shadow updating mechanism is provided and connected to each of the memory location portions for allowing data stored in one of the portions to be copied into the other portion.