On-board diagnostic sub-system for SCSI interface

Details On-board diagnostic sub-system for SCSI interface On-board diagnostic sub-system for SCSI interface

1989-06-12

1991-07-16

Atkinson, Charles E.

Excavating

364200, 371 161, G06F 1100

Patent

active

050330497

ABSTRACT:
On board diagnostic capability for a SCSI controller is provided within an adapter by providing a gate array driven by a microprocessor on board the adapter. The gate array has data and control inputs driven from the microprocessor and data and control outputs which are dot OR'ed with corresponding in/out terminals of the SCSI controller. A reset signal from a SCSI bus forms a further input to the gate array. For testing purposes the microprocessor drives the gate array inputs to simulate a fault-free or faulty device. The microprocessor detects the response of the SCSI controller to the device simulation and thereby can determine the state of health of the SCSI controller.

REFERENCES:
patent: 3889109 (1975-06-01), Blessin
patent: 3931506 (1976-01-01), Borrelli
patent: 3958111 (1976-05-01), Hackett
patent: 4275464 (1981-06-01), Schmidt
patent: 4339819 (1982-07-01), Jacobson
patent: 4385349 (1983-05-01), Ashford
patent: 4499580 (1985-02-01), Takahashi
patent: 4500993 (1985-02-01), Jacobson
patent: 4535456 (1985-08-01), Bauer
patent: 4638455 (1987-01-01), Yamazaki
patent: 4669004 (1987-05-01), Moon
patent: 4718064 (1988-01-01), Edwards
patent: 4779196 (1988-10-01), Manga
patent: 4783705 (1988-11-01), Moon
patent: 4868825 (1989-09-01), Koeppe
patent: 4905184 (1990-02-01), Giridhar et al.
patent: 4914656 (1990-04-01), Dunphy, Jr. et al.
Aseo, "Disk Interfacing Gets Smart", ESD, Nov. 1987, pp. 77-84.
Ow-Wing, "Diagnostic Registers Simplify System Self-Testing", Electronic Design, Oct. 27, 1983, pp. 155-164.
Ow-Wing, "Strategy for Diagnostic Design", New Electronics, Oct. 18, 1983, pp. 74-77.
Robinson, "SCSI Interface Demands New Test Methods", Mini-Micro Systems, Apr. 1988, pp. 35-39.
Squires, "Outsmarting Smart Interfaces to Test Winchester Drives", Electronics Test, Feb. 1988, pp. 39-43.
"Solving the Test Problem in SCSI Disk Drives", Electronics, Feb. 17, 1986, pp. 35-37.
"Western Digital Slashes SCSI Bus Overhead Time", Electronics, Aug. 20, 1987, pp. 64-65.

Affiliated with

Also associated with

Rating

On-board diagnostic sub-system for SCSI interface does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with On-board diagnostic sub-system for SCSI interface, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On-board diagnostic sub-system for SCSI interface will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-137587