Pibeta trigger electronics August 1999

In August 1999, part of our trigger logic has been replaced by PSI LB500 logic units using a programmable logic device ispLSI 2128E-LT165 from Lattice semiconductor. For details on how to change the programming see here.

Following picture gives an overview of the revised trigger scheme. Red paths mark signal flow of the trigger, which is time-critical, green are scaler signals and blue are TDC signals. Click on individual LB500's to see internal programming and pin assignment.

lb500_pb lb500_pb lb500_pb

This schematics is also available in EPS format.

H.P. Wirtz and S. Ritt, August 2nd, 1999