Arcetri Astrophysical Observatory

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logosmallarcetri Arcetri Technical Reports 8/1999


NICS-TNG Infrared Camera
A FIFO buffer for the ADC board

G. Comoretto, C. Baffa, F. Lisi

Osservatorio Astrofisico di Arcetri

Sommario

For faster acquisition rate with the CCD Controller of the Galileo project, a FIFO buffer is needed after each ADC channel to accomodate for the relatively slow response time of transputer links. This report describes the FIFO/ADC board implemented as part of the NICS camera controller.

The FIFO is realized using fast static RAM and a Xilinx chip, which serializes the ADC parallel data on a transputer link. The board is controlled by the DSP of the CCDC. The DSP can also insert arbitrary words in the transputer link, to implement arbitrary protocols.

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