Patent ID: 7529998
Filing Date: 2009-05-05
Classification: G01R,G06F,G11C,H03K

Abstract:
1. A circuit comprising: a primary function block configured to implement a function and having first built-in self-test (BIST) circuitry for determining whether the primary function block is defective; a redundant function block having second BIST circuitry, the redundant function block configured to selectively implement the function in place of the primary function block if the primary function block is determined to be defective; and a rerouting coupler configured to implement reconfiguration information to reroute I/O signals from the primary function block to the redundant function block to facilitate replacement of the defective primary function block with the redundant function block based at least in part on a result of a test run of the first BIST circuitry of the primary function block.