National Instruments NI-488.2 NI-488.2 User Manual page 123

Glossary
N
NDAC
NRFD
P
parallel poll
PC
PCI
PIO
PPC
PPD
PPE
PPU
programmed I/O
R
resynchronize
RQS
NI-488.2 User Manual
Not Data Accepted—One of the three GPIB handshake lines.
See also handshake.
Not Ready For Data—One of the three GPIB handshake lines.
See also handshake.
The process of polling all configured devices at once and reading
a composite poll response. See also
Personal computer.
Peripheral Component Interconnect.
See programmed I/O.
Parallel Poll Configure—The GPIB command used to configure
an addressed Listener to participate in polls.
Parallel Poll Disable—The GPIB command used to disable a configured
device from participating in polls. There are 16 PPD commands.
Parallel Poll Enable—The GPIB command used to enable a configured
device to participate in polls and to assign a DIO response line.
There are 16 PPE commands.
Parallel Poll Unconfigure—The GPIB command used to disable any device
from participating in polls.
Low-speed data transfer between the GPIB interface and memory in
which the CPU moves each data byte according to program instructions.
See also DMA.
When the driver indicates to the application that asynchronous I/O
operations have completed.
Request Service.
serial poll.
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