6815854H01-A
June 15, 2005
Glossary-5
microcontroller unit
Also written as µC. A microprocessor that contains RAM and ROM
components, as well as communications and programming components
and peripherals.
microprocessor core
The central processing unit of the microprocessor and DSP IC and
powered by a lower voltage supply than the logic I/O section.
MISO
MOSI
multiplexer
An electronic device that combines several signals for transmission on
some shared medium (e.g., a telephone wire).
MUX
NiCd
Nickel-cadmium.
NiMH
Nickel-metal-hydride.
OMPAC
See over-molded pad-array carrier.
open architecture
A controller configuration that utilizes a microprocessor with extended
ROM, RAM, and EEPROM.
oscillator
An electronic device that produces alternating electric current and
commonly employs tuned circuits and amplifying components.
OSW
OTAR
outbound signaling
word
Data transmitted on the control channel from the central controller to the
subscriber unit.
over-molded pad-
array carrier
A Motorola custom IC package, distinguished by the presence of solder
balls on the bottom pads.
over-the-air rekeying
Allows the dispatcher to remotely reprogram the encryption keys in the
radio.
PA
Power amplifier.
paging
One-way communication that alerts the receiver to retrieve a message.
Patriot IC
A dual-core processor that contains an MCU and a DSP in one IC
package.
PC Board
Printed Circuit Board. Also referred to as a PCB.
phase-locked loop
A circuit in which an oscillator is kept in phase with a reference, usually
after passing through a frequency divider.
PL
See private-line tone squelch.
Term
Definition
Содержание XTL 1500
Страница 1: ......
Страница 5: ...iv June 15 2005 6815854H01 A This page is intentionally left blank ...
Страница 19: ...xviii List of Figures June 15 2005 6815854H01 A This page is intentionally left blank ...
Страница 25: ...June 15 2005 6815854H01 A xxiv CommercialWarranty Notes ...
Страница 35: ...June 15 2005 6815854H01 A xxxiv Model Numbering Charts and Specifications Notes ...
Страница 49: ...June 15 2005 6815854H01 A 2 12 Product Overview Controller Section Notes ...
Страница 161: ...June 15 2005 6815854H01 A 4 36 Troubleshooting Procedures Power Amplifier Procedures Notes ...
Страница 225: ...June 15 2005 6815854H01 A 5 64 Troubleshooting Charts Flowcharts Notes ...
Страница 429: ...8 2 Flex Cable Pin Out Lists Flex Cables June 15 2005 6815854H01 A Notes ...
Страница 441: ...June 15 2005 6815854H01 A Glossary 10 Notes ...
Страница 451: ...Index x June 15 2005 6815854H01 A This page is intentionally left blank ...