Prototype VME data acquisition card for the ZEUS calorimeter
This paper discusses the design of a prototype data acquisition (DAQ) card for the ZEUS calorimeter. The card accepts two multiplexed analog data streams at a 1 MHz rate, and digitizes and stores the data for subsequent transfer through VME to a host computer. The data is buffered by a high-speed asynchronous FIFO following the A/D converters, and written into Data Memory on the card, either directly or after processing by an on-board digital signal processors (DSP). Each card has a 16-bit control-status register (CSR), the bits of which configure the hardware and define the hardware options. The 1/4 Mbyte of high speed CMOS static RAM appears either as a FIFO, or mapped memory depending upon a bit in the CSR. The card is designed to make use of the 32-bit data and address buses supported by VME, and accordingly can be most efficiently utilized in conjunction with a processor in the VME environment such as the 68020, which supports longword transfers in a 32-bit address space. The card is constructed on a ten layer printed circuit, with almost all components being surface-mount devices. All logic is implemented in PLD's.
- Research Organization:
- High Energy Physics Div., Argonne National Lab., Argonne, IL (US)
- OSTI ID:
- 6285087
- Report Number(s):
- CONF-881103-
- Journal Information:
- IEEE Trans. Nucl. Sci.; (United States), Vol. 36:1; Conference: IEEE nuclear science symposium, Orlando, FL, USA, 9 Nov 1988
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
DATA ACQUISITION SYSTEMS
DESIGN
SCINTILLATION COUNTERS
ANALOG SYSTEMS
ANALOG-TO-DIGITAL CONVERTERS
COMPUTER CODES
DATA TRANSMISSION
MOS TRANSISTORS
ON-LINE MEASUREMENT SYSTEMS
COMMUNICATIONS
ELECTRONIC EQUIPMENT
EQUIPMENT
MEASURING INSTRUMENTS
ON-LINE SYSTEMS
RADIATION DETECTORS
SEMICONDUCTOR DEVICES
TRANSISTORS
440101* - Radiation Instrumentation- General Detectors or Monitors & Radiometric Instruments
990220 - Computers
Computerized Models
& Computer Programs- (1987-1989)