Fast, Microprocessor Driven, Data Acquisition for Fermilab Experiment E-705

Data rate in excess of 105 16-bit CAMAC words/sec, with peak rates of up to 2×106 words/sec, are expected from Fermilab experiment E-705. To handle such rate, a fast Data Acquisition System was designed, composed of several CAMAC Smart Controllers, sending their data, in a combined serial/parallel organization, to a VME based data collection and forwarding system. Such a system, contained in a VME Crate, consists of homebuilt data receiver and transmitter boards, a Motorola VME110, 68000 based, Single Board Computer acting as a supervisor, and a large (≥4 Mbytes) buffer memory. Data filtering capabilities will be added to the system with the inclusion of several MK 75602 Single Board Computers, acting as processing cells.