A general purpose FASTBUS master (GPM) and memory module (DSM) for online applications
Conference
·
· IEEE Trans. Nucl. Sci.; (United States)
OSTI ID:5886932
The GPM is a high performance Fastbus master/slave, driven by 68 000 (or optionally 68 020/68 881 processors). Developed for general purpose applications it will perform control, trigger and diagnostic functions in three different experiments at CERN (DELPHI, L3, VIRTUS). Commercially available as single-board Fastbus master/slave, the GPM is a cheap processor component which can be connected to the DSM Fastbus dual-slave memory to perform as a low-level trigger processor, event formatter or data-spy. The GPM supports interprocessor interrupts via a Fastbus CSR register, interrupts on events in the Fastbus (like SR), and external interrupts. The GPM is equipped with 1/2 Mbyte of RAM, 1/4 Mbyte of ROM and a 32 Kbyte Fastbus I/O buffer. Any Fastbus operation can be generated as mixture of autonomous block transfers and assembly-language instructions which are directly executed in Fastbus. Powerful diagnostics can be performed by the possibility to address its own slave-port, via the Fastbus and the applicability of the debugging monitor commands to individual Fastbus/68 000 cycles. A terminal and host connection is available. The DMA supported parallel port can be used for interface applications. For external interrupts and coaxial pulse I/O, a NIM pulse interface is available. The 2 Mbyte Dual Slave Memory (DSM) can be used either as a stand-alone Fastbus memory, or as a memory extension module of a GPM, with independent I/O on crate and cable segments. It supports linear or circular buffer concepts and can be used as a data-spy on5cable segments.
- Research Organization:
- CERN, European Organization for Nuclear Res., 1211 Geneva 23
- OSTI ID:
- 5886932
- Report Number(s):
- CONF-851009-
- Conference Information:
- Journal Name: IEEE Trans. Nucl. Sci.; (United States) Journal Volume: NS-33:1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
43 PARTICLE ACCELERATORS
430303* -- Particle Accelerators-- Experimental Facilities & Equipment
CABLES
CERN
COMMUNICATIONS
CONDUCTOR DEVICES
CONTROL SYSTEMS
DATA TRANSMISSION
DESIGN
DISPLAY DEVICES
ELECTRIC CABLES
ELECTRICAL EQUIPMENT
ELECTRONIC CIRCUITS
EQUIPMENT
EQUIPMENT INTERFACES
FASTBUS SYSTEM
INTERNATIONAL ORGANIZATIONS
MEMORY DEVICES
MONITORING
ON-LINE CONTROL SYSTEMS
ON-LINE SYSTEMS
PERFORMANCE
PROGRAMMING LANGUAGES
PULSE CIRCUITS
PULSES
TRIGGER CIRCUITS
430303* -- Particle Accelerators-- Experimental Facilities & Equipment
CABLES
CERN
COMMUNICATIONS
CONDUCTOR DEVICES
CONTROL SYSTEMS
DATA TRANSMISSION
DESIGN
DISPLAY DEVICES
ELECTRIC CABLES
ELECTRICAL EQUIPMENT
ELECTRONIC CIRCUITS
EQUIPMENT
EQUIPMENT INTERFACES
FASTBUS SYSTEM
INTERNATIONAL ORGANIZATIONS
MEMORY DEVICES
MONITORING
ON-LINE CONTROL SYSTEMS
ON-LINE SYSTEMS
PERFORMANCE
PROGRAMMING LANGUAGES
PULSE CIRCUITS
PULSES
TRIGGER CIRCUITS