Freescale Semiconductor, Inc.
Glossary
MC68HC08 — A Motorola family of 8-bit MCUs
MCU — Microcontroller Unit. A complete computer system, including a
CPU, memory, a clock oscillator, and input/output (I/O) on a single
integrated circuit.
MR32 (908MR32, MC68HC908MR32) — See "MC68HC08"
phase-locked loop (PLL) — A clock generator circuit in which a voltage
controlled oscillator produces an oscillation which is synchronized to a
reference signal.
PVAL — PWM value register of motor control PWM module of
MC68HC908MR32 microcontroller. It defines the duty cycle of
generated PWM signal.
PWM — Pulse Width Modulation
reset — To force a device to the known condition.
SCI — See "serial communications interface module (SCI)"
serial communications interface module (SCI) — A module that
supports asynchronous communication.
serial peripheral interface module (SPI) — A module that supports
synchronous communication.
software — Instructions and data that control the operation of a
microcontroller.
software interrupt (SWI) — An instruction that causes an interrupt and
its associated vector fetch.
SPI — See "serial peripheral interface module (SPI)"
SR — switched reluctance motor
timer — A module used to relate events in a system to a point in time.
Designer Reference Manual
64
DRM019 — Rev 0
Glossary
MOTOROLA
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