Title :
Asynchronous inputs and flip-flop metastability in the CLAS trigger at CEBAF
Author :
Doughty, David C., Jr. ; Lemon, Stephan ; Bonneau, P.
Author_Institution :
Christopher Newport Univ., Newport News, VA, USA
Abstract :
The impact of flip-flop metastability on the pipelined trigger for the CLAS detector at CEBAF (Continuous Electron Beam Accelerator Facility) has been studied. It is found that the newest ECL (emitter coupled logic) flip-flops (ECLinPS) are much faster than older families at resolving the metastable condition. This will allow their use in systems with asynchronous inputs without an extra stage of synchronizing flip-flops
Keywords :
electron accelerators; emitter-coupled logic; flip-flops; linear accelerators; nuclear electronics; physics computing; pipeline processing; trigger circuits; CEBAF; CLAS trigger; Continuous Electron Beam Accelerator Facility; ECL; ECLinPS; asynchronous inputs; emitter coupled logic; flip-flop metastability; metastable condition; pipelined trigger; Clocks; Data acquisition; Delay effects; Detectors; Equations; Flip-flops; Metastasis; Pipelines; Propagation delay; Synchronization;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference, 1992., Conference Record of the 1992 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-0884-0
DOI :
10.1109/NSSMIC.1992.301248
