Motorola APX 7000 Detailed Service Manual page 635

Glossary
Term
receiver
registers
repeater
repeater/talkaround
RESET
RF
RF PA
RIB
ROM
RPCIC
RSS
RTC
RX
RX DATA
SAP
SCI IN
Serial Audio CODEC
Port
Serial
Communication
Interface Input Line
Serial Peripheral
Interface
signal
Signal Qualifier
mode
softpot
Electronic device that amplifies RF signals. A receiver separates the
audio signal from the RF carrier, amplifies it, and converts it back to the
original sound waves.
Short-term data-storage circuits within the microcontroller unit or
programmable logic IC.
Remote transmit/receive facility that re-transmits received signals in
order to improve communications range and coverage (conventional
operation).
A conventional radio feature that permits communication through a
receive/transmit facility, which re-transmits received signals in order to
improve communication range and coverage.
Reset line: an input to the microcontroller that restarts execution.
See radio frequency.
See radio frequency power amplifier.
See Radio Interface Box.
See read-only memory.
Regulator/power control IC.
See Radio Service Software.
See real-time clock.
Receive.
Recovered digital data line.
See Serial Audio CODEC Port.
See Serial Communication Interface Input Line.
SSI to and from the GCAP II IC CODEC used to transfer transmit and
receive audio data.
A full-duplex (receiver/transmitter) asynchronous serial interface.
How the microcontroller communicates to modules and ICs through the
CLOCK and DATA lines.
An electrically transmitted electromagnetic wave.
An operating mode in which the radio is muted, but still continues to
analyze receive data to determine RX signal type.
See software potentiometer.
Definition
Glossary-7