Communications system to boundary-scan logic interface

Details Communications system to boundary-scan logic interface Communications system to boundary-scan logic interface

1992-03-06

1995-03-21

Canney, Vincent P.

Excavating

371 221, G01R 3128

Patent

active

054003458

ABSTRACT:
A control node for controlling a predetermined function in response to messages transmitted over a communications bus and for responding to a second class of such messages to exercise boundary-scan logic to test the control node. The boundary-scan logic is implemented in accordance with ANSI/IEEE Standard 1149.1. The second class of messages include Scan Command messages which contain data for controlling the state of the Test Access Port of the boundary-scan logic, Scan Test Data messages which transmit data to be loaded into the instruction registers or the test data registers of the boundary-scan logic, and Scan Results Request messages which control the node to return the test results over the communications bus.

REFERENCES:
patent: 4365293 (1982-12-01), Holtz
patent: 4398264 (1983-08-01), Cooper et al.
patent: 4550366 (1985-10-01), Toyama et al.
patent: 5056093 (1991-10-01), Whetsel
patent: 5103450 (1992-04-01), Whetsel
patent: 5115435 (1992-05-01), Langford, II et al.
C. Bardwell-Jones, "SSD . . . " Proceed. of the 3rd Annual Motion Control Tech. Conf. E., Mar. 1991, Boston, Mass., pp. 1-25.
R. P. Brennan, "The SERCOS Inter. . . . " present at: PCIM/Power Quality '90 Phil, Pa. pp. 1-8 Oct. 24, 1990.
T. Bucella, "Using The Trajectory Regulator Protocol," Proceed of the 3rd Annual Conf/E, Mar. 1991, Boston, Mass. pp. 1-8.
S. Cortese, "SERCOS-Real . . . " Proceed. of the 3rd Annual Motion Control Tech. Conf. E., Mar. 1991, Boston, Mass. pp. 14-25.
S. Cortese, "An Evaluation of SSD's Link Interface," Apr. 5, 1991.
M. Dolin, "Boundary Scan Makes Inroads into PCB Testing," Computer Design, pp. 50-51, Dec. 1991.
Weaver, Lachner & Boekestein, "A Compact . . . " Procceed. of the 3rd Annual Mot. Cont. Tech. Conf/E. Mar. 1991 Bost. Mass. pp. 9-13.
Int. Stand. Organ., ISO/TC97: Inf. Proc. Sys. Open Syst. Inter. Basic Ref. Model, Draft Int. Stand ISO/DIS 7498. Apr. 1982.
"IBM Synchronous Data Link Control," General Info. IBM form GA27-3093.
EIA recommend. stand. RS485: Stand. for elect. char. of gen. and rec. for use in bal. dig. multi-point syst EIA Apr. 1983.
SN65ALS176 RS422A an RS-485 differential bus transceivers: Interface Circuits Data book. Texas Instruments, 1991.
International Standard ISO 8802-2 IEEE Std. 802.2 "Information Processing systems--Local area . . . " Dec. 31, 1989.
FCC Class B/VDE 0871.
IEEE Standard 1149.1-1990, "IEEE Stand. Test Access Port and Boundary . . . ", IEEE Inc. 345 E. 47th St. N.Y. N.Y. 10017.

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