Bus control system for integrated circuit device with...

Electrical computers and digital data processing systems: input/ – Intrasystem connection – Bus access regulation

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C710S112000, C710S119000

Reexamination Certificate

active

06917995

ABSTRACT:
The present invention is a command or data transfer between two integrated circuit devices (hereafter LSIS) wherein an LSI issuing a command or data (issuing side LSI) outputs a strobe signal, which indicates that a valid command or data was transmitted, to the LSI which receives the command or data (receiving side LSI), and the receiving side LSI outputs a signal, which notifies that the command processing completed (command ready signal), to the issuing side LSI. The issuing side LSI comprises a counter where a value to indicate the number of commands which the receiving side LSI can simultaneously process or simultaneously receive is loaded at initialization, wherein the counter is decremented when a command or data is issued, the counter is incremented when the ready signal is received, and issuing a command or data is inhibited when the counter becomes “0”. Therefore the issuing side LSI can issue a command or data to the receiving side LSI without confirming a busy signal from the receiving side LSI.

REFERENCES:
patent: 4380063 (1983-04-01), Janson et al.
patent: 5778200 (1998-07-01), Gulick
patent: 5784579 (1998-07-01), Pawlowski et al.
patent: 5796968 (1998-08-01), Takamiya
patent: 5996037 (1999-11-01), Emnett
patent: 6108736 (2000-08-01), Bell
patent: 0 225 024 (1987-06-01), None
patent: 54081041 (1979-06-01), None
patent: 63271629 (1988-11-01), None
patent: 1088859 (1989-04-01), None
patent: 4170649 (1992-06-01), None
IBM® Technical Disclosure Bulletin, “Local Main Store Bus with Separately Controlled Command and Data Portions”, vol. 36, No. 11 Nov. 1993, p. 419.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Bus control system for integrated circuit device with... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Bus control system for integrated circuit device with..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bus control system for integrated circuit device with... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3379186

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.