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Method to Test Data Bus Integrity

IP.com Disclosure Number: IPCOM000013900D
Original Publication Date: 2000-Dec-01
Included in the Prior Art Database: 2003-Jun-19

Publishing Venue

IBM

Abstract

This is a test method using a unique data pattern (rolling bit pattern) to verify the integrity of a data bus in a computer. Although this test pattern was developed while working on an actual 16 bit ATA Hard Disk Drive bus problem, it could be applied to any size data bus within, or connected externally to a computer. The signal quality in a bi-directional data bus. whether on a board or through a cable, can be degraded because of: 1) The length of the traces 2) The impedance of the materials