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timing reading trigger inputs

Posted: Mon Mar 07, 2005 11:52 am
by p.vandenbroek
I understand the trigger inputs are scanned for once every clock cycle.
How is the reading process of the trigger inputs defined, i.e. on which moment(s) relatively to the clock pulses are the values (0 or 1) at the 16 inputs determined. The information is important as to find out when trigger input data should be stable.

Thanks in advance,
Philip van den Broek
Radboud University Nijmegen

Posted: Tue Mar 08, 2005 1:16 pm
by Coen
The data on the trigger lines is latched 1.4 microseconds before the falling edge of the clock (sample rate) signal (pin 32). The timing relative to the falling edge in the clock signal is the same for all sample rates (speedmodes).

Best regards, Coen (BioSemi)