Bus checking device and bus checking method

Details Bus checking device and bus checking method Bus checking device and bus checking method

1994-10-25

1997-01-14

Teska, Kevin J.

Excavating

371 221, 371 225, 364488, 364489, G06F 1700, G06F 1750

Patent

active

055948910

ABSTRACT:
A bus checking device to efficiently check the exclusiveness of buses including a checked control circuit extractor (2) which extracts a control circuit portion concerned with determination of control signals according to predetermined rules using the net list (1) in which the connection relation of the designed integrated circuit is described. The exclusiveness checker (3) checks output signals of the control circuit portion extracted by the checked control circuit, extractor means (2) to examine the exclusiveness of the bus. In the exclusiveness checker (3), the information on the exclusiveness of the checked bus is stored in the bus exclusiveness information file (7a). The exclusiveness of a bus can be checked by extracting a control circuit portion concerned with generation of bus control signals in a bus control circuit and checking the control circuit portion, resulting in an improvement in the check efficiency.

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Itazaki et al., "Test Pattern Generation For Circuit With Tri-State Modules By Z-Algorithm", IEEE 1989, pp. 1327-1334.
Turino, "IEEE p.1149 Proposed Standard Testability Bus", IEEE 1988, pp. 334-337.
West, "New Advances In ECL Bus Designs", IEEE 1988, pp. 496-500.

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