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MC68HC08AZ0 Datasheet, PDF (422/444 Pages) Motorola, Inc – Advance Information | |||
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Glossary
Freescale Semiconductor, Inc.
instructions â 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 â A temporary break in the sequential execution of a program to respond to signals
from peripheral devices by executing a subroutine.
interrupt request â A signal from a peripheral to the CPU intended to cause the CPU to
execute a subroutine.
I/O â See âinput/output (I/0).â
IRQ â See "external interrupt module (IRQ)."
jitter â Short-term signal instability.
latch â 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 â The time lag between instruction completion and data movement.
least significant bit (LSB) â The rightmost digit of a binary number.
logic 1 â A voltage level approximately equal to the input power voltage (VDD).
logic 0 â A voltage level approximately equal to the ground voltage (VSS).
low byte â The least significant eight bits of a word.
low voltage inhibit module (LVI) â A module in the M68HC08 Family that monitors power
supply voltage.
LVI â See "low voltage inhibit module (LVI)."
M68HC08 â A Motorola family of 8-bit MCUs.
mark/space â The logic 1/logic 0 convention used in formatting data in serial communication.
mask â 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.
MC68HC08AZ0
420
Glossary
For More Information On This Product,
Go to: www.freescale.com
MOTOROLA
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