Scanning Srls Containing L2* Latches Without Losing Data
Original Publication Date: 1989-Oct-01
Included in the Prior Art Database: 2005-Jan-29
To reduce the overhead in implementing single-latch Level-Sensitive Scan Designs (LSSDs), a second data port can be added to the L2 latch (then called an L2* latch) so that both latches in a shift register latch (SRL) can be used as system latches [*]. Such an SRL is shown in Fig. 1.