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National Instruments Corporation G-7 PCI-6023E/6024E/6025E User Manual
GPCTR0_OUT general purpose counter 0 output signal
GPCTR0_SOURCE general purpose counter 0 clock source signal
GPCTR0_UP_DOWN general purpose counter 0 up down
GPCTR1_GATE general purpose counter 1 gate signal
GPCTR1_OUT general purpose counter 1 output signal
GPCTR1_SOURCE general purpose counter 1 clock source signal
GPCTR1_UP_DOWN general purpose counter 1 up down
GPIB General Purpose Interface bus, synonymous with HP-IB. The standard bus
used for controlling electronic instruments with a computer. Also called
IEEE 488 bus because it is defined by ANSI/IEEE Standards 488-1978,
488.1-1987, and 488.2-1987.
grounded measurement
system
See referenced single-ended measurement system.
H
h hour
half-power bandwidth the frequency range over which a circuit maintains a level of at least –3 dB
with respect to the maximum level
handshaked digital I/O a type of digital acquisition/generation where a device or module accepts
or transfers data after a digital pulse has been received. Also called latched
digital I/O.
hex hexadecimal
Hz hertz—the number of events per second
I
in. inches
INL integral nonlinearity—a measure in LSB of the worst-case deviation from
the ideal A/D or D/A transfer characteristic of the analog I/O circuitry
PCI.book Page 7 Wednesday, September 16, 1998 9:09 AM