Prototype VME data acquisition card for the ZEUS calorimeter

Conference · Fri Jan 01 04:00:00 EST 1988

OSTI ID:6566141

Dawson, J W; Berg, J S; Schlereth, J L; Stanek, R

This paper discusses the design of a prototype data acquisition (DAQ) card for the ZEUS calorimeter. The card accepts two multiplexes 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 processor (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. 5 refs., 4 figs., 3 tabs.

• Research Organization: Argonne National Lab., IL (USA)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6566141
• Report Number(s): ANL-HEP-CP-88-77; CONF-881103-21; ON: DE89004211
• Country of Publication: United States
• Language: English

Related Subjects

99 GENERAL AND MISCELLANEOUS
990220* -- Computers
Computerized Models
& Computer Programs-- (1987-1989)
CALORIMETERS
COMPUTER ARCHITECTURE
COMPUTERS
DATA ACQUISITION SYSTEMS
DESIGN
ELECTRONIC CIRCUITS
LOGIC CIRCUITS
MEASURING INSTRUMENTS
MICROELECTRONIC CIRCUITS
MICROPROCESSORS
PRINTED CIRCUITS