Motorola M68HC08 - Manual (Page 165)

Glossary
DRM028 — Rev 0 Designer Reference Manual
MOTOROLA Glossary 165
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.
F
re
e
sc
a
le
S
e
m
ic
o
n
d
u
c
to
r,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
c
.
..