Bus control operating system having bi-directional address lines

Details Bus control operating system having bi-directional address lines Bus control operating system having bi-directional address lines

Filed on

1996-04-29

Date issued

1998-03-17

Examiner

Lim, Krisna

Other Related Categories

395308, G06F 1340

Type

Patent

Status

active

Patent number

057297037

Description

ABSTRACT:
A bus control operating system integrated in one chip with a main controller, which employs some of address bus lines operated in bi-directional mode, by interchanging signals between the main controller and the address source. As a result, if an external address source has to utilize address bus and data bus, an additional bus line for the external address source is not required and an additional external bus controller does not need to be manufactured.

REFERENCES:
patent: 4181178 (1980-01-01), Suzuki et al.
patent: 4417304 (1983-11-01), Dinwiddie, Jr.
patent: 4458313 (1984-07-01), Suzuki et al.
patent: 4479178 (1984-10-01), Schabowski
patent: 4631659 (1986-12-01), Hayn, II et al.
patent: 4682285 (1987-07-01), Ozil et al.
patent: 4811202 (1989-03-01), Schabowski
patent: 4853848 (1989-08-01), Mitsuhashi et al.
patent: 4910657 (1990-03-01), Yoshida
patent: 4935868 (1990-06-01), Dulac
patent: 5095485 (1992-03-01), Sato

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