System bus protocol interface circuit

Details System bus protocol interface circuit System bus protocol interface circuit

1981-09-28

1984-03-13

Smith, Jerry

Boots, shoes, and leggings

G06F 302, G06F 918

Patent

active

044371586

ABSTRACT:
The present invention provides a bus protocol interface circuit for the peripheral units that prevents a conflict in bus requests between the peripheral units and permits bipolar drivers to be used for fast operation. The interface circuit comprises a logic means coupled to the bus acknowledgment line input terminal and the bus acknowledgment line output terminal for generating a logic output signal responsive to the signals on the bus acknowledgement line input and output terminals, and latching means coupled between the bus request line and the bus request line terminal, and further connected to the output of the logic means and the bus acknowledgment line output terminal, for latching into a state consistent with a bus request signal from any one of the peripheral units and for unlatching from the consistent state upon receipt of a bus acknowledgment signal in response to the bus request signal.

REFERENCES:
patent: 3480914 (1969-11-01), Schlaeppi
patent: 3937925 (1976-02-01), Boothroyd
patent: 4040028 (1977-08-01), Pauker et al.
patent: 4141068 (1979-02-01), Mager et al.
patent: 4149238 (1979-04-01), James et al.
patent: 4149241 (1979-04-01), Patterson
patent: 4188617 (1980-02-01), Favchier et al.
patent: 4261034 (1981-04-01), Saccomano et al.
patent: 4316247 (1982-02-01), Iwamoto
patent: 4320457 (1982-03-01), Tanikawa

Affiliated with

Also associated with

Rating

System bus protocol interface circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System bus protocol interface circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System bus protocol interface circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-495696