Patent ID: 7546504

Claim:
A computer-implemented method comprising: selecting only a first scan channel from a plurality of scan channels, wherein each of the plurality of scan channels correspond to one of a plurality of scan chains included in a device, the first scan channel corresponding to a first scan chain included in the plurality of scan chains; loading, on a first clock cycle, a scan bit from a first scan pattern into the selected first scan channel; after the loading of the scan bit, selecting only a second scan channel from the plurality of scan channels, wherein the second scan channel corresponds to a second scan chain included in the plurality of scan chains; loading, on a second clock cycle that is immediately after the first clock cycle, a scan bit from a second scan pattern into the second scan channel; and continuing to load, after the loading of the scan bit from the second scan pattern, subsequent scan bits from subsequent scan patterns into subsequent scan channels during subsequent clock cycles until each of the plurality of scan channels includes one scan bit.