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): 129/136頁
文件大?。?/td> 659K
代理商: 8XC196LX
Glossary-9
GLOSSARY
PTS vector
A location in
special-purpose memory
that holds the
starting address of a
PTS control block
.
QUAD-WORD
An unsigned, 64-bit variable with values from 0
through 2
64
–1. The QUAD-WORD variable is
supported only as the operand for the EBMOVI
instruction.
quantizing error
An unavoidable A/D conversion error that results
simply from the conversion of a continuous voltage to
its integer digital representation. Quantizing error is
always
±
0.5 LSB and is the only error present in an
ideal
A/D converter
.
RALU
Register arithmetic-logic unit. A part of the CPU that
consists of the
ALU
, the
PSW
, the master
PC
, the
microcode engine, a loop counter, and six registers.
repeatability error
The variation in
code transitions
when comparing a
number of
actual characteristics
from the same
converter on the same channel with the same temper-
ature, voltage, and frequency conditions. The amount
of repeatability error depends on the comparator’s
ability to resolve very similar voltages and the extent
to which random noise contributes to the error.
reserved memory
A memory location that is reserved for factory use or
for future expansion. Do not use a reserved memory
location except to initialize it.
resolution
The number of input voltage levels that an
A/D
converter
can unambiguously distinguish between.
The number of useful bits of information that the
converter can return.
sample capacitor
A small (2–3 pF) capacitor used in the
A/D converter
circuitry to store the input voltage on the selected
input channel.
sample delay
The time period between the time that
A/D converter
receives the “start conversion” signal and the time
that the
sample capacitor
is connected to the selected
channel.
sample delay uncertainty
The variation in the
sample delay
.
sample time
The period of time that the
sample window
is open.
(That is, the length of time that the input channel is
actually connected to the
sample capacitor
.)
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參數(shù)描述
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