Patent ID: 7590503
Filing Date: 2009-09-15
Classification: H04L

Abstract:
1. An apparatus for testing data paths and/or video sources on an integrated circuit, comprising: a switching device configured to couple one or more video sources to one or more destinations, the switching device including a plurality of input and output ports, each input port being connectable to one of (i) a single one of the output ports, (ii) a plurality of the output ports simultaneously, and (iii) all of the output ports simultaneously, via primary data-paths, the switching device including only one testing output data path dynamically configurable to couple to only one of the primary data-paths; wherein the one testing output data-path is dedicated to cyclic redundancy checksum (CRC) output data; and wherein a CRC module is configured to receive video testing output data directly from the one testing output data-path and perform CRC testing of the video testing output data without interrupting simultaneous provision of the one or more video sources to the one or more destinations; and a controller connectable to the switching device via the one testing output data path to (i) connect the only one primary data path to a data collection device and (ii) permit analysis of at least one from the group including (a) one or more of the primary data paths and (b) one or more of the video sources, via the connected only one primary data-path; wherein the permitted analysis is based only on data received at the testing output data-path through the only one primary data path.