Motorola ASTRO XTL 5000 Basic Service Manual page 157

Term
digital signal
processor
digital signal
processor code
DPL
DSP
DSP code
DTE
DTMF
dual tone multi-
frequency
EEPOT
EEPROM
Electrically Erasable
Programmable
Read-Only Memory
FCC
firmware
FGU
flash
FLASHcode
FLASHport
FMR
6881096C73-O
A microcontroller specifically designed for performing the mathematics
involved in manipulating analog information, such as sound, that has
been converted into a digital form. DSP also implies the use of a data
compression technique.
Object code executed by the Digital Signal Processor in an ASTRO
subscriber radio. The DSP is responsible for computation-intensive
tasks, such as decoding ASTRO signaling.
See Digital Private-Line. See also PL.
See digital signal processor.
See digital signal processor code.
See Data terminal equipment.
See dual tone multi-frequency.
The system used by touch-tone telephones. DTMF assigns a specific
frequency, or tone, to each key so that it can easily be identified by a
microprocessor.
Electrically Programmable Digital Potentiometer.
See Electrically Erasable Programmable Read-Only Memory.
A special type of PROM that can be erased by exposing it to an
electrical charge. An EEPROM retains its contents even when the
power is turned off.
Federal Communications Commission.
Code executed by an embedded processor such as the Host or DSP in
a subscriber radio. This type of code is typically resident in non-volatile
memory and as such is more difficult to change than code executed
from RAM.
See frequency generation unit.
A non-volatile memory device similar to an EEPROM. Flash memory
can be erased and reprogrammed in blocks instead of one byte at a
time.
A 13-digit code which uniquely identifies the System Software Package
and Software Revenue Options that are enabled in a particular
subscriber radio. FLASHcodes are only applicable for radios which are
upgradeable through the FLASHport process.
A Motorola term that describes the ability of a radio to change memory.
Every FLASHport radio contains a FLASHport EEPROM memory chip
that can be software written and rewritten to, again and again.
See Florida Manual Revision.
Definition
Glossary-3
June 11, 2003