參數(shù)資料
型號： MC68HC05X4CDW
廠商： MOTOROLA INC
元件分類： 微控制器/微處理器
英文描述： HCMOS Microcontroller Unit
中文描述： 8-BIT, MROM, 2.2 MHz, MICROCONTROLLER, PDSO28
封裝： PLASTIC, SOIC-28
文件頁數(shù)： 140/156頁
文件大?。?/td> 926K
代理商： MC68HC05X4CDW
Glossary
MC68HC0X4 Rev 1.0
140
Glossary
MOTOROLA
instructions
— Operations that a CPU can perform. Instructions are expressed by programmers
as assembly language mnemonics. A CPU interprets an opcode and its associated
operand(s) and instruction.
interrupt
— A temporary break in the sequential execution of a program to respond to signals
from peripheral devices by executing a subroutine.
interrupt request
— A signal from a peripheral to the CPU intended to cause the CPU to
execute a subroutine.
I/O
— See “input/output (I/0).”
IRQ
— See "external interrupt module (IRQ)."
jitter
— Short-term signal instability.
latch
— A circuit that retains the voltage level (logic 1 or logic 0) written to it for as long as power
is applied to the circuit.
latency
— The time lag between instruction completion and data movement.
least significant bit (LSB)
— The rightmost digit of a binary number.
logic 1
— A voltage level approximately equal to the input power voltage (V
DD
).
logic 0
— A voltage level approximately equal to the ground voltage (V
SS
).
low byte
— The least significant eight bits of a word.
low voltage inhibit module (LVI)
— A module in the M68HC08 Family that monitors power
supply voltage.
LVI
— See "low voltage inhibit module (LVI)."
M68HC08
— A Motorola family of 8-bit MCUs.
mark/space
— The logic 1/logic 0 convention used in formatting data in serial communication.
mask
— 1. A logic circuit that forces a bit or group of bits to a desired state. 2. A photomask used
in integrated circuit fabrication to transfer an image onto silicon.
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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參數(shù)描述
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