Input output control system using a FIFO to record access inform

Details Input output control system using a FIFO to record access inform Input output control system using a FIFO to record access inform

1990-01-03

1991-10-29

Lee, Thomas C.

Boots, shoes, and leggings

36492792, 36492799, 3649269, 36492693, 36493144, 3649576, 3649654, G06F 300, G06F 1312, G06F 1320

Patent

active

050620738

ABSTRACT:
A group of control registers for controlling a plurality of input output devices respectively are formed in random access memory which is connected to a microprocessor bus of an input output control device. A history of a program mode access from a central processing apparatus to the RAM is recorded in a first-in first-out memory (FIFO). The microprocessor of the input output control device reads an access information of the FIFO, accesses the group of the control registers on the RAM, and controls the input output device according to the read control information. Thus, control of a plurality of input output devices is carried out by one input output device.

REFERENCES:
patent: 3979730 (1976-09-01), Bennett et al.
patent: 4246637 (1981-01-01), Brown et al.
patent: 4268906 (1981-05-01), Bourke et al.
patent: 4371932 (1983-02-01), Dinwiddie et al.
patent: 4475155 (1984-10-01), Oishi et al.
patent: 4484263 (1984-11-01), Olson et al.
patent: 4494190 (1985-01-01), Peters
patent: 4514823 (1985-04-01), Mendelson et al.
patent: 4591973 (1986-05-01), Ferris, III et al.
patent: 4593324 (1986-06-01), Ohkubo et al.
patent: 4783730 (1988-11-01), Fischer
U.S. patent application Ser. No. 865,516, filed May 21, 1986 (your ref: 522.1067, our ref: FJ-5499-U.S.).

Affiliated with

Also associated with

Rating

Input output control system using a FIFO to record access inform does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Input output control system using a FIFO to record access inform, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Input output control system using a FIFO to record access inform will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1404019