Measurement-computing CIO-DAS16/M1/16 Manual de usuario descargar pdf (Pagina 16)

INT4:1 - Interrupt selection

Table 5-2. Interrupt Coding

151111

140111

Not Available1011

120011

111101

100101

Not Available1001

Not Available0001

71110

60110

51010

40010

31100

20100

Not Available1000

DISABLED0000

INTERRUPTINT1INT2INT4INT8

BMDE - Burst Mode Enable. 0 = disable, 1 = enabled. The number of channels in the burst are set in BASE +Ah

TS1:0 - A/D trigger source

Table 5-3. Trigger Source Coding

Internal Paced 11

Rising External Pacer 01

Software TriggerX0

TRIGGER SOURCETS0TS1

To perform conversions in Software Mode, the A/D converter samples at 1 MHz. The maximum delay from the

trigger to the first 1 MHz convert pulse is < 1 uSec, since the trigger enables the 1 MHz pulse train to pass through to

the counter circuit to count 3 pulses which in turn will generate the FIFO write pulse. Therefore, the maximum delay

from the Software Trigger (Base + 0 Write) is 3 uSec.

To perform conversions in Pacer modes, the following sequence must be followed by the program:

The counter (Internal Paced) or DIN0 (External Paced) must be set.

Set the Pacer generator, TS1/0, appropriately.

To initiate the conversions, perform a WRITE to Base + 0 (as in Software Mode) or set an external trigger/gate.

To stop conversions, perform a Base + 9 Write cycle. If using an external trigger, the clearing of the trigger pulse will

end conversions.

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Measurement-computing CIO-DAS16/M1/16 Manual de usuario Pagina 16