The present invention describes a circuit (10) and associated method of operation for implementing bit reversals and shifts of an input data. The circuit (10) includes a plurality of input lines (12), a plurality of output lines (14), a plurality of shifting transistors (16), a plurality of bit...http://www.google.com.hk/patents/US5682340?utm_source=gb-gplus-share專利 US5682340 - Low power consumption circuit and method of operation for implementing shifts and bit reversals 
