ADLINK DAQe-2214 - Manual (Page 82)

70 Operation Theory
4.6 User-controllable Timing Signals
In order to meet the requirements for user-specific timing and
requirements for synchronizing multiple cards, the DAQ-/DAQe-
2213/2214 card provides flexible user-controllable timing signals
to connect to external circuitry or additional cards.
The whole DAQ timing of the DAQ-/DAQe-2213/2214 card is com-
posed of a bunch of counters and trigger signals in the FPGA.
These timing signals are related to the A/D, D/A conversions, and
Timer/Counter applications. These timing signals can be input to
or output from the I/O connectors, SSI connector, and the PXI bus.
Therefore, the internal timing signals can be used to control exter-
nal devices or circuitry. Note that in other models of DAQ-/DAQe-
2213/2214 card, the user-controllable timing signals may vary.
However, the SSI/PXI timing signals remain the same for every
DAQ-/DAQe-2213/2214 card.
We implemented signal multiplexers in the FPGA to individually
choose the desired timing signals for the DAQ operations, as
shown in the Figure 4-36.
Figure 4-36: DAQ Signals Routing