Patent ID: 7702980

Claim:
A scan-load-based dynamic scan configuration, comprising: a) reconfigurable scan cells; b) means for distributing configuration data to said reconfigurable scan cells and for determining desired reconfiguration data for each of said reconfigurable scan cells; and c) a configuration-set (CS) signal; wherein each of said reconfigurable scan cells has a pass-through (PT) mode in which a data input, either a scan-in (SI) or a system-data (SD) of the scan cell, is transparently passed to a scan-out (SO) terminal of the scan cell without requiring a pulse on a shift clock (SC); wherein said configuration-set (CS) signal communicates with each of said reconfigurable scan cells; and wherein a pulse on said configuration-set (CS) signal triggers PT Hold latches to capture configuration data from corresponding slave latches, which in turn set configurations of each of said reconfigurable scan cells.