Status Register 1 - National Instruments DAQ AT-MIO-16X User Manual

Multifunction i/o board for the pc at/eisa
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15
14
DAQCOMP
DAQPROG
MSB
7
6
TMRREQ
DACCOMP
© National Instruments Corporation

Status Register 1

Status Register 1 contains 16 bits of AT-MIO-16X hardware status
information, including interrupt, analog input status, analog output
status, and data acquisition progress.
Address:
Base address + 18 (hex)
Type:
Read-only
Word Size:
16-bit
Bit Map:
13
12
ADCFIFOHF*
ADCFIFOEF*
5
4
DAQFIFOFF*
DAQFIFOHF*
Bit
Name
15
DAQCOMP
14
DAQPROG
Chapter 4
11
10
DMATCA
DMATCB
3
2
DAQFIFOEF*
EEPROMDATA
Description
Data Acquisition Complete—This bit
reflects the status of the data acquisition
termination signal. If DAQCOMP is set
and either OVERFLOW or OVERRUN
is also set, the current acquisition
sequence ended on an error condition.
If DAQCOMP is set and neither
OVERFLOW nor OVERRUN is set, the
data acquisition operation has completed
without error. When DAQCOMP is set,
and ADCREQ in Command Register 3 is
also set, enabled interrupt or DMA
requests are generated until the ADC
FIFO is empty. DAQCOMP is cleared by
strobing the DAQ Clear Register.
Data Acquisition Progress—This bit
indicates whether a data acquisition
operation is in progress. If DAQPROG
is set, a data acquisition operation is in
progress. If DAQPROG is cleared, the
4-25
Register Map and Descriptions
9
8
OVERFLOW
OVERRUN
1
0
EEPROMCD*
CFGMEMEF*
LSB
AT-MIO-16X User Manual

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