National Instruments AT-MIO-16X - Manual (Page 147)

Chapter 4 Register Map and Descriptions
© National Instruments Corporation 4-51 AT-MIO-16X User Manual
Single Conversion Register
Accessing the Single Conversion Register location initiates a single
A/D conversion.
Address: Base address + 1D (hex)
Type: Write-only
Word Size: 8-bit
Bit Map: Not applicable, no bits used
Strobe Effect: Initiates a single ADC conversion
Note: A/D conversions can be initiated in one of two ways—by accessing the
Single Conversion Register or by applying an active-low signal on the
EXTCONV* signal. The EXTCONV* signal is connected to the I/O
connector, to OUT3 of the Am9513A, and to the A0 pin of the RTSI bus
switch. If the Single Conversion Register is to initiate A/D conversions, all
other sources of conversion should be inhibited to avoid an OVERRUN
condition.