Electronic apparatus having a high-speed communication bus syste

Details Electronic apparatus having a high-speed communication bus syste Electronic apparatus having a high-speed communication bus syste

1998-06-17

2000-07-18

Auve, Glenn A.

Electrical computers and digital data processing systems: input/

Intrasystem connection

Bus access regulation

G06F 1300

Patent

active

060921382

ABSTRACT:
An electronic apparatus contains a bus conductor, a load circuit connected to the bus conductor for pulling a potential of the bus conductor towards a quiescent level and stations interconnected by the bus conductor. At least one of the stations contains a wired logic drive circuit and an arbitration circuit connected to the wired logic drive circuit for executing an arbitration wherein the wired logic drive circuits of different ones of the stations may each pull the potential against the load circuit. The electronic apparatus comprises a detector for producing a detection signal when the at least one station wins the arbitration. In response to the detection signal the load circuit is switched to an increased current supply capability state. In the increased current supply capability state the load circuit supplies a greater current to the bus conductor than during arbitration at least at times when the potential starts changing towards the quiescent level.

REFERENCES:
patent: 4847867 (1989-07-01), Nasu et al.
patent: 5341480 (1994-08-01), Wasserman et al.
patent: 5363405 (1994-11-01), Hormel
patent: 5559967 (1996-09-01), Oprescu et al.
patent: 5629645 (1997-05-01), Okajima et al.
patent: 5748675 (1998-05-01), Hormel et al.
"Data Handbook IC20:80C51-based 8-bit microcontrollers" issued by Philips Semiconductors in 1994, pp. 1141-1159.

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