參數(shù)資料
型號: 8XC196LX
英文描述: 8XC196Lx - 8XC196Lx Supplement to 8X196Kx. 8X196Jx. 87C196CA User's Manual
中文描述: 8XC196Lx - 8XC196Lx補編8X196Kx。 8X196Jx。 87C196CA用戶手冊
文件頁數(shù): 131/136頁
文件大小: 659K
代理商: 8XC196LX
Glossary-11
GLOSSARY
special-purpose memory
A partition of memory used for storing the
interrupt
vectors
,
PTS vectors
, chip configuration bytes, and
several reserved locations.
standard interrupt
Any
maskable interrupt
that is assigned to the
interrupt controller
for processing by an
interrupt
service routine
.
state time (or state)
The basic time unit of the microcontroller; the
combined period of the two internal timing signals,
PH1 and PH2. Because the microcontroller can
operate at many frequencies, this manual defines time
requirements in terms of
state times
rather than in
specific units of time.
successive approximation
An A/D conversion method that uses a binary search
to arrive at the best digital representation of an analog
input.
t
Lowercase “t” represents the period of the internal
clock.
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.
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