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Dive into the research topics where Donald L. Tietjen is active.

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Featured researches published by Donald L. Tietjen.


Proceedings of 1994 IEEE Symposium on Low Power Electronics | 1994

A 1 watt 68040-compatible microprocessor

Terry L. Biggs; James E. Dunning; Renny Eisele; Grady Giles; Jim Lundberg; David M. Menard; Matt Nixon; Ed Nuckolls; Tulley Peters; Donald L. Tietjen

A 68040-compatible microprocessor, optimized for portable applications, is presented. While maintaining the same speed and performance as its predecessor, this implementation achieves a 70% reduction in power consumption (before considering static power management techniques). The innovative low-power features and the cost/performance/power trade-offs of the design are discussed. A new metric is defined to compare the relative merit of quiescent states in microprocessors.


Archive | 1988

Wait mode power reduction system and method for data processor

Donald L. Tietjen


Archive | 1999

Direct memory access controller and method therefor

Gary R. Morrison; Kristen L. Mason; Frank C. Galloway; Charles E. Nuckolls; Jennifer L. McKeown; Jeffrey M. Polega; Donald L. Tietjen


Archive | 1995

System and method for avoiding bus contention on a multiplexed bus by providing a time period subsequent to a read operation

Donald L. Tietjen; David M. Menard


Archive | 1980

Universal interface circuit for synchronous and asynchronous buses

Donald L. Tietjen; Sharon Lamb; Pern Shaw; Duane Cawthron; Paul D. Shannon


Archive | 1980

Programmable mode select by reset

Pern Shaw; Donald L. Tietjen; Michael F. Wiles


Archive | 1995

Method and apparatus for address extension across a multiplexed communication bus

Donald L. Tietjen; Frank C. Galloway; David M. Menard; Ronny L. Arnold; Nancy G. Woodbridge


Archive | 1997

System and method for recovering a microprocessor from a locked bus state

John Michael Hudson; Donald L. Tietjen; Terry L. Biggs


Archive | 1992

Method and apparatus for providing both power and control by way of an integrated circuit terminal

Terry L. Biggs; Donald L. Tietjen; Jesse R. Wilson


Archive | 1987

Method and apparatus for selectively delaying an interrupt of a coprocessor

Michael W. Cruess; Donald L. Tietjen; Van B. Shahan; Stanley E. Groves

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