Chapter 4 Register Map and Descriptions
AT-MIO-16X User Manual 4-30
©
National Instruments Corporation
Status Register 2Status Register 2 contains 1 bit of AT-MIO-16X hardware status
information for monitoring the status of the A/D conversion.
Address: Base address + 1A (hex)
Type: Read-only
Word Size: 1-bit
Bit Map:
Bit Name Description
15-1 X Don’t care bits.
0 ADC_BUSY* ADC BUSY—This bit indicates the
status of the A/D converter on the
AT-MIO-16X during a conversion or
calibration process. The A/D converter
on the AT-MIO-16X can calibrate its
internal circuitry on command by
strobing the ADC Calibration Register.
If ADC_BUSY* is clear, an ADC
conversion or calibration operation is
currently in progress. If ADC_BUSY* is
set, no ADC conversion or calibration
operation is in progress. An ADC
calibration cycle takes approximately
1.25 sec. During this time, the ADC is
busy as reflected by the ADC_BUSY*
status, and cannot be used.
76 5
X
43
X
2
X
10
XXX ADC_BUSY*X
15
MSB
LSB
14 13
X
12 11
X
10
X
98
XXX XX