Patent ID: 6826100
Filing Date: 2004-11-30
Classification: G01R,G06F

Abstract:
A system comprising:a carrier substrate; a bus formed in the carrier substrate; and first and second agents to communicate with each other at a nominal bus speed via the bus, the first agent having a built-in test unit separate from that agent's core function circuitry to launch test information, contained in each of a plurality of test cycles as a victim-aggressor pattern, on said bus at said nominal bus speed, the second agent having a built-in test unit, separate from that agent's core function circuitry, to capture said information over the bus and compare said captured test information to a copy of said test information stored in the second agent to determine any errors, the test unit of the first agent to automatically change a victim pin assignment after each test cycle, without requiring re-programming of the test unit by a test program that is external to the first agent.