National Instruments AT-MIO-16X - Manual (Page 131)

Chapter 4 Register Map and Descriptions
© National Instruments Corporation 4-35 AT-MIO-16X User Manual
CONFIGMEM Register
The CONFIGMEM Register controls the input channel-selection
multiplexers, gain, range, and mode settings, and can contain up to
512 channel configuration settings for use in scanning sequences.
Address: Base address + 08 (hex)
Type: Write-only
Word Size: 16-bit
Bit Map:
Bit Name Description
15 CHAN_SE Channel Single-Ended—This bit
configures the analog input section for
single-ended or differential mode. See
Table 4-9.
14 CHAN_AIS Channel Analog Input Sense—This bit
sets the analog input section for RSE or
NRSE mode when CHAN_CAL is
cleared. When CHAN_CAL is set, this
bit controls the reference signal
connected to the positive (+) side of the
PGIA for calibration purposes. See
Table 4-9.
13 CHAN_CAL Channel Calibration Enable—This bit
controls the analog input configuration
switches. CHAN_CAL is used to
disconnect the input multiplexers from
the PGIA during a calibration procedure
so that known internal reference signals
can be routed to the amplifier. See
Table 4-9.
7 6 5
CHANSEL0
4 3
CH_GAIN1
2
CHAN_LAST
1 0
CHAN_GHOST CHANSEL1 CH_GAIN2 CHAN_DSP CH_GAIN0
15
MSB
LSB
14 13
CHAN_AIS
12 11
CHAN_BIP
10
0
9 8
CHANSEL3 CHAN_SE CHAN_CAL CHANSEL2 0