Motorola M68HC08 manual Serial communications interface module SCI a module that

Freescale Semiconductor, Inc.

Freescale Semiconductor, Inc.

Glossary

PCM — PC master software for communication between PC computer and system

phase-locked loop (PLL) — A clock generator circuit in which a voltage controlled oscillator produces an oscillation which is synchronized to a reference signal.

PMP — PC master software project file

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 a known condition.

SCI — See "serial communication 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.

DRM028 — Rev 0		Designer Reference Manual
MOTOROLA	Glossary	165
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