Apparatus for adjusting impedance of controlling chip on a compu

Details Apparatus for adjusting impedance of controlling chip on a compu Apparatus for adjusting impedance of controlling chip on a compu

1998-06-11

2000-07-04

Tokar, Michael

Electronic digital logic circuitry

Signal sensitivity or transmission integrity

Bus or line termination

326 30, 326 86, 326 21, 326 82, 326 90, G01R 1900

Patent

active

060844256

ABSTRACT:
An impedance adjusting apparatus of a controlling chip on a computer mainboard. When a computer is turned on, BIOS automatically detects the actual usage of the memory sockets, and then sends corresponding control signals to adjust the impedance of the impedance adjusting apparatus for a better impedance matching between the controlling chip and the memory sockets. The signal reflection is dramatically reduced and the operation bandwidth is widened.

REFERENCES:
patent: 5894230 (1999-04-01), Voldman
patent: 5955889 (1999-09-01), Taguchi et al.
patent: 5955894 (1999-09-01), Vishwantthaiah et al.

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