Intel 8XC196NT, User Manual

Page: 578 / 597

Glossary-11
GLOSSARY
successive approximation An A/D conversion method that uses a binary search
to arrive at the best digital representation of an analog
input.
temperature coefficient Change in the stated variable for each degree
Centigrade of temperature change.
temperature drift The change in a specification due to a change in
temperature. Temperature drift can be calculated by
using the temperature coefficient for the specification.
terminal-based characteristic An actual characteristic that has been translated and
scaled to remove zero-offset error and full-scale error.
A terminal-based characteristic resembles an actual
characteristic with zero-offset error and full-scale
error removed.
transfer function A graph of output code versus input voltage; the
characteristic of the A/D converter.
transfer function errors Errors inherent in an analog-to-digital conversion
process: quantizing error, zero-offset error, full-scale
error, differential nonlinearity, and nonlinearity.
Errors that are hardware-dependent, rather than being
inherent in the process itself, include feedthrough,
repeatability, channel-to-channel matching, off-
isolation, and V
CC
rejection errors.
UART Universal asynchronous receiver and transmitter. A
part of the serial I/O port.
V
CC
rejection The property of an A/D converter that causes it to
ignore (reject) changes in V
CC
so that the actual
characteristic is unaffected by those changes. The
effectiveness of V
CC
rejection is measured by the ratio
of the change in V
CC
to the change in the actual
characteristic.
watchdog timer An internal timer that resets the device if software
fails to respond before the timer overflows.
WDT See watchdog timer.
word Any 16-bit unit of data.
WORD An unsigned, 16-bit variable with values from 0
through 2
16
–1.