Title :
AMsystem: the associative memories readout system
Author :
Amendolia, S.R. ; Avanzini, C. ; Galeotti, S. ; Gherarducci, F. ; Morsani, F. ; Passuello, D. ; Ristori, L. ; Sciacca, G. ; Turini, N.
Author_Institution :
Sassari Univ., Italy
Abstract :
The AMsystem has been designed having in mind mainly the track finding problem in the Collider Detector Facility (CDF) silicon vertex detector, and the trigger studies at fixed target and colliders (NAxx project at CERN). The AMsystem is conceived as a data driven device, where the input data are parallel streams of detector hit coordinates, and the output data are a list of recognized tracks. This allows the structure to be easily embedded in an existing trigger/data-acquisition system. The core of the system consists of a set of boards housing the AMchips and the GLUEchips (needed for tree-structuring the readout chain), and of a Sequencer board which controls the input/output (I/O) operations performed on each event. The I/O interfaces connect to the data acquisition system and to the experiment-specific data sources. All the boards are housed in a double Eurocard crate. VMEbus is used to control and download the AMsystem.<>
Keywords :
content-addressable storage; data acquisition; nuclear electronics; physics computing; semiconductor counters; trigger circuits; AMsystem; CDF; CERN; Collider Detector Facility; GLUEchips; I/O interfaces; NAxx project; Sequencer board; Si; VMEbus; associative memories readout system; data driven device; detector hit coordinates; double Eurocard crate; download; experiment-specific data sources; fixed target; input data; input/output; output data; parallel streams; recognized tracks; track finding problem; tree-structuring; trigger studies; trigger/data-acquisition system; vertex detector; Access protocols; Associative memory; Backplanes; Connectors; Control systems; Data acquisition; Detectors; Feeds; Silicon; Target tracking;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference, 1991., Conference Record of the 1991 IEEE
Conference_Location :
Santa Fe, NM, USA
Print_ISBN :
0-7803-0513-2
DOI :
10.1109/NSSMIC.1991.259020
