Method and apparatus for controlling termination of current driv

Details Method and apparatus for controlling termination of current driv Method and apparatus for controlling termination of current driv

1994-08-30

1996-06-04

Westin, Edward P.

Electronic digital logic circuitry

Signal sensitivity or transmission integrity

Bus or line termination

326 90, H03K 1716, H03K 190175

Patent

active

055237037

ABSTRACT:
A method of controlling termination of current driven circuits that bidirectionally transmit and receive a current driven signal, has the step of transmitting the current driven signal from a first one of the current driven circuits and receiving the signal by a second one of at least one of the current driven circuits while connecting only a termination circuit on the receiver side and disconnecting the other termination circuits. Therefore, the method of controlling termination of current driven circuits carries out simple termination switching control to prevent a decrease in the impedance of the output stage of the current driven circuit and transmit the current driven signal at correct amplitude.

REFERENCES:
patent: 4912724 (1990-03-01), Wilson
patent: 4982115 (1991-01-01), Lee
Active Terminators for CMOS Drivers, IBM Technical Disclosure Bulletin, vol. 32, No. 4A, Sep. 1989.
Adaptive Load, IBM Technical Disclosure Bulletin, vol. 22, No. 5, Oct. 1979, M. Bersac.

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