Hardware Description
ComTec GmbH
3-7
3.3. Multiparameter
Section
The multiparameter section provides the ability to connect upto 8 external ADC's, Multiscalers,
Position Analyzers, Time-of-Flight units etc. with a DataReady / DataAccepted handshake.
3.3.1. ADC Port Connectors
All 8(4) ADC ports normally support upto 16 bit wide (64k channel) ADC's, TOF's etc.
But they provide the ability to be software configured for 32, 48 or 64 bit interfaces by using
neighbouring ports. In that case the handshake (DRDY, DACC, DEADTIME etc.) is processed on
the lowest ADC port connector only. The associated higher order ADC ports provide the higher
order data bits only. E.g. if ADC port 1 is setup with 64 bit then data "bit 0" (LSB) corresponds to
"ADC 1 / DATA[0]" and data "bit 63" corresponds to "ADC 4 / DATA[15].
All the corresponding signal polarities are software selectable.
Fig. 3.6: Simplified ADC port timing