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© National Instruments Corporation Index-5 Lab-NB User Manual
Port C single bit set/reset control
words, 4-65
controlled acquisition mode
multiple A/D conversions on single
input channel, 4-40 to 4-42
clearing A/D circuitry, 4-41
programming counter B0 (if
necessary), 4-40
programming counters A0
and A1, 4-41
programming sample-interval
counter (counter A0), 4-41 to 4-42
selecting analog input channel, gain,
and timebase source for
counter A0, 4-40
servicing DAQ operation, 4-42
multiple A/D conversions using external
timing, 4-46 to 4-51
posttrigger mode, 4-46 to 4-48
clearing A/D circuitry, 4-47
disabling EXTCONV* and
EXTTRIG input, 4-47
programming counter A0, 4-47
programming counter A1 and
enabling EXTCONV* and
EXTTRIG input, 4-47 to 4-48
selecting analog input channel
and gain, and posttrigger
mode, 4-47
servicing DAQ operation, 4-48
pretrigger mode, 4-49 to 4-51
clearing A/D circuitry, 4-50
disabling EXTCONV* and
EXTTRIG input, 4-49
programming counter A0, 4-49
programming counter A1 and
enabling EXTCONV*
input, 4-50
selecting analog input channel
and gain, and pretrigger
mode, 4-49
servicing DAQ operation, 4-50
to 4-51
overview, 4-39
Counter A Mode Register, 4-20
Counter A0 Data Register
description, 4-17
programming
controlled acquisition mode, 4-40 to
4-42, 4-47
freerun acquisition mode, 4-43
to 4-44, 4-49
Counter A1 Data Register
description, 4-18
programming
controlled acquisition mode, 4-41,
4-47 to 4-48
freerun acquisition mode, 4-44, 4-50
Counter A2 Data Register
description, 4-19
interrupt programming of analog output
circuitry, 4-54
Counter B Mode Register, 4-24
Counter B0 Data Register
description, 4-21
programming
controlled acquisition mode, 4-40
freerun acquisition mode, 4-43
to 4-44
Counter B1 Data Register, 4-22
Counter B2 Data Register, 4-23
counter block diagram, 3-11
counter/timer registers. See 8253
Counter/Timer Register groups.
customer communication, xiii, E-1
D
D<7..0> bits
Counter A0 Data Register, 4-17
Counter A1 Data Register, 4-18
Counter A2 Data Register, 4-19
Counter B0 Data Register, 4-21
Counter B1 Data Register, 4-22
Counter B2 Data Register, 4-23
Digital Control Register, 4-29
Port A Register, 4-26
Port B Register, 4-27
Port C Register, 4-28
D<11..0> bit, 4-15
D<15..0> bits, 4-10, 4-11