Glossary of Technical Terms - Octopartdatasheet.octopart.com/DK-ADAPTOR-10178-1A-CSR-datasheet-32035489.pdf2G 2nd Generation of mobile communications technology ... BTS Base Transceiver

© Cambridge Silicon Radio Limited 2008 - 2013

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Glossary of Technical TermsIssue 14

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Document HistoryRevision Date Change Reason

1 07 APR 08 Original publication of this document

2 03 DEC 08 Update

3 06 APR 09 Update

4 26 NOV 09 Update

5 01 JUN 10 Update

6 18 OCT 10 Update

7 24 MAR 11 Update

8 29 JUN 11 Update

9 28 SEP 11 Update

10 30 MAR 12 Update

11 20 JUL 12 Update

12 09 OCT 12 Update

13 26 DEC 12 Update

14 08 NOV 11 Updated to current CSR brandingIf you have any comments about this document, email [email protected] giving thenumber, title and section with your feedback.

1 IntroductionThis document defines the technical terms used by CSR.

Terms and DefinitionsTerm Definition

2DRMS Twice the Distance Root Mean Square

2G 2nd Generation of mobile communications technology

2WH 2-Way Handshake (e.g. WPA)

3G 3rd Generation of mobile communications technology

3GPP™ 3rd Generation Partnership Project, a collaboration between groups of telecommunicationsassociations, to make a globally applicable 3rd Generation mobile phone system specification

3WH 3-Way Handshake (e.g. TCP)

4WH 4-Way Handshake (e.g. WPA, WPA2)

802® A family of IEEE standards covering metropolitan area networks and local area networks

802.11™ WLAN specification defined by a working group within the IEEE



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Glossary of Technical Term

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Term Definition

8DPSK 8-phase Differential Phase Shift Keying

π/4 DQPSK π/4 rotated Differential Quaternary Phase Shift Keying

µ-law Audio companding standard (G.711)

A-GPS Assisted Global Positioning System

A-law Audio companding standard (G.711)

A/V Audio/Video

A2DP Advanced Audio Distribution Profile

AAC Advanced Audio Coding

AAC-LC Advanced Audio Coding Low Complexity

AAC-LTP Advanced Audio Coding Long Term Prediction

AARP AppleTalk Address Resolution Protocol

ABCSP Variant of BCSP designed for embedded applications

ABM Asynchronous Balanced Mode

ABP Almanac Based Positioning

ABS Anti-lock Braking System

AC Access Category

AC Admission Control

AC Alternating Current

ACELP Algebraic CELP

ACES (Motorola) Automotive Communications and Electronic Systems

ACK ACKnowledge

ACL Application Control Layer

ACL Asynchronous Connection-oriented

ACLR Adjacent Channel Leakage Ratio

ACO Authenticated Ciphering Offset

ACP Adjacent Channel Power

ACQCLK ACQuisition CLocK (RF analogue to digital sample clock)

ACR Advanced Communications Riser

ACT Asian Compression for TrueType

ActiveSync A synchronisation program developed by Microsoft that allows a mobile device to besynchronised with a desktop PC or a server

ad-hoc In wireless communication, ad-hoc is discovering and communicating to other devices with peer-to-peer communications without using central access points

ADC Analogue to Digital Converter



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Term Definition

ADDTS ADD Traffic Stream

ADL Application Data Layer

ADPCM Adaptive Differential Pulse Code Modulation (e.g. G.726)

AE Auto(matic) Exposure

AEC Acoustic Echo Cancellation

AEQ Adaptive EQualiser

AES Advanced Encryption Standard

AES Audio Engineering Society

AF Alternative Frequencies list

AF Auto(matic) Focus

AFC Automatic Frequency Control

AFE Analogue Front-End

AFH Adaptive Frequency Hopping

AG Address Generator

AG Audio Gateway

AGC Automatic Gain Control

AGHFP Audio Gateway Hands Free Profile

AGP Auto Generated Payload

AGR Automatic Gain Reduction

AHB Advanced High-performance Bus

AIC Advanced Interrupt Controller

AIFS Arbitration InterFrame Space

AIO Analogue Input/Output

AIO Asynchronous Input/Output

ALC Automatic Level Control

ALU Arithmetic Logic Unit

AM Amplitude Modulation

AM_ADDR Active Member ADDRess

AMBA Advanced Microprocessor Bus Architecture (ARM standard)

AMP Alternate MAC/PHY

AMR Adaptive Multi-Rate

AMR-WB AMR Wide-Band (G.722.2)

AMUX Analogue MUltipleXor



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Term Definition

AP Access Point

AP Access Preamble

APB Advanced Peripheral Bus

APE Audio file format from Monkey's Audio

API Application Programming Interface

APM Advanced Power Management

APME Access Point Management Entity

APSD Automatic Power-Save Delivery

ARIB Association of Radio Industries and Businesses

AR_ADDR Access Request Address

ARC4 Alleged Rivest Cipher 4

ARM Advanced RISC Machines

ARP Address Resolution Protocol

ARQ Automatic Repeat reQuest

AS Authentication Server

ASB Anti-SideBand

ASCII American Standard Code for Information Interchange

ASD Application Specific Device

ASF Advanced Streaming Format

ASIC Application Specific Integrated Circuit

ASN.1 Abstract Syntax Notation One

ASSP Application-Specific Standard Product

AT ATtention, modem command

AT ATtenuation

AT Terminal control commands

ATA Advanced Technology Attachment

ATE Automatic Test Equipment

ATIM Announcement Traffic Indication Message

ATM Asynchronous Transfer Mode

ATP Adaptive TricklePower

ATS Abstract Test Suite

ATS Application Test Suite

ATT ATTribute protocol



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Term Definition

AuriStream CSR proprietary ADPCM codec

AUX Auxiliary

AVCTP Audio/Video Control Transport Protocol

AVDTP Audio/Video Distribution Transport Protocol

AVI Audio Video Interleave

AVRCP Audio/Video Remote Control Profile

AWB Automatic White Balance

b Bit

B Byte

B/W BandWidth

BAF Benefield Anechoic Facility

balun balanced/unbalanced interface or device that changes a balanced output to an unbalanced inputor vice versa

BAR Base Address Register

BB BaseBand

BBRAM Battery Backed RAM

BC BlueCore

BCCH Broadcast Control CHannel

BCCMD BlueCore CoMmanD

BCD Binary Coded Decimal

BCH Bose-Chaudhuri-Hochquenghem error correction code

BCHS BlueCore Host Software

BCSP BlueCore Serial Protocol

BD_ADDR Bluetooth Device ADDRess

BDF Bitstream Distribution Format

BDR Basic Data Rate

BDR Battery Divider Ratio

BE Best-Effort

BE Broadcast Ephemeris

BEC Bit Error Concealment

BER Basic Encoding Rules

BER Bit Error Rate

BFI Bad Frame Indicator

BGA Ball Grid Array



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Term Definition

BHT Bluetooth Hardware Timer

BIOS Basic Input Output System

BIP Basic Imaging Profile

BIP Broadcast Integrity Protocol

BIST Built-In Self-Test

BIU Bus Interface Unit (external memory interface)

BK BacKground

BLE Bluetooth low energy

Block Ack Block Acknowledge

BlueCore® Group term for CSR’s range of Bluetooth wireless technology ICs

BlueICE BlueCore Input Connection Enhancement

BlueFlash Software for programming BlueCore’s associated flash device

BlueLab® CSR’s development toolset for building applications to run in the firmware’s VM

BlueSuite® BlueCore family of software utilities for Bluetooth evaluation and development

BlueTest A programme in the BlueSuite family that runs a BlueCore chip's self test routines

Bluetooth® Set of technologies providing audio and data transfer over short-range radio connections

Bluetooth APM Bluetooth Advanced Power Management

BLS Black Light Scaling

BMC Burst Mode Controller

BMM Base Memory Managers

BNEP Bluetooth Network Encapsulation Protocol

BOM Bill Of Materials

BON Bed Of Nails

bpp bits per pixel

bps Bits Per Second

BPSK Binary Phase Shift Keying

BQA Bluetooth Qualification Administrator

BQB Bluetooth Qualification Body

BQP Bluetooth Qualification Program

BQRB Bluetooth Qualification Review Board

BQTF Bluetooth Qualification Test Facility

BRC Bit Rate Control

BSC Base Station Controller



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Term Definition

BSD Berkeley Standard Distribution

BSP Board Support Package

BSS Base Station Subsystem

BSS Basic Service Set

BSSID BSS IDentification (network address)

BSSLAP Base Station System Location services Assistance Protocol

BSSMAP Base Station System Management Application Part

BT Bluetooth

BTA Bluetooth Technical Assessors

BTAB Bluetooth Technical Advisory Board

BTCli Bluetooth Command Line Interface

BTI WG Bluetooth Test and Interoperability Working Group

BTL Bridge Tied Load

BTS Base Transceiver Station

C/A Code Coarse/Acquisition Code

C/I Carrier over Interferer

C/N Carrier over Noise

C/No Carrier to Noise Density

C99 ISO/IEC 9899:1999 (past version of C programming language)

CAB CABinet, a file format used in a variety of Microsoft installation engines

CABAC Context-based Adaptive Binary Arithmetic Code

CAC Channel Access Code

CAE Computer Aided Engineering

Capability The functional behaviour of a DSPManager operator

CardBus 32-bit high performance bus mastering architecture for PC cards

CAS Column Address Strobe

Casira™ Bluetooth development hardware from CSR

CATS CSR Automated Test System. A general test execution framework for hardware and software

CB Core Board

CC Call Control

CCA Clear Channel Assessment

CCCR Card Common Control Registers

CCD Charge-Coupled Device



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Term Definition

CCH Control CHannel

CCIR International Telecommunication Union - Radiocommunications sector (formerly CCIR)

CCK Complementary Code Keying

CCM Colour Conversion Manager

CCMP CTR (Counter mode) with CBC-MAC (Cipher Block Chaining-Message Authentication Code)Protocol

CCX Cisco Compatible eXtensions

CDAC Digital to Analogue Converter Capacitor

CD ROM Compact Disk Read-Only Memory

CDL Coexistence Decision Logic

CDL Common Display List

CDMA Code Division Multiple Access

CDS Correlation Double Sampling

CDS-AFE Correlation Double Sampling Analogue Front-End

CE Chip Enable

CE Compact Edition

CE Consumer Electronics

CEC Consumer Electronics Control

CELP Code Excited Linear Prediction

CEP Circular Error Probability

CFA Colour Filter Array

CFC Chlorofluorocarbon

CFF Compact Font Format

CFI Common Flash Interface

CFI Compact Flash Interface

CFP Contention-Free Period

CGEE Client Generated Extended Ephemeris

CGI Cell Global Identity

CGI The Common Gateway Interface protocol is a standard for interfacing external scripts orprograms through an HTTP server.

CGU Clock Generation Unit

CI Capacitance Input

CI Cell Identity

CI Command Interpreter



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Term Definition

CID Cell ID

CID Character-IDentified (fonts)

CID Connection ID

CIS CardBus Information Structure

CIS Contact Image Scanner

CKIP Cisco Key Integrity Protocol

CL ConnectionLess

CLI Calling Line Identification

CLK Clock

CLM Client Location Manager

CMA Continuous Memory Areas

CMD CoMmanD

CMOS Complementary Metal Oxide Semiconductor

CMP Customizable (sic) Modular Processing tool

CMRR Common Mode Rejection Ratio

CMY (Colour modelling using) Cyan, Magenta and Yellow

CMYK (Colour modelling using) Cyan, Magenta, Yellow and Key (black)

CNG Comfort Noise Generation

COACH Camera-On-A-CHip device, includes hardware and firmware

COACHWare CSR's COACH firmware library executes on the COACH embedded CPU processor andimplements camera functionality

COACHWare API The API layer through which the host or HCE communicates with COACHWare

COAL CSR OS Abstraction Layer

COD Class Of Device

codec Coder decoder

COF Ciphering OFfset

COFF Common Object File Format

COM A contraction of communications, used to describe the serial port on a PC

COMMS Communication Layer

COMPASS China's GNSS system

CP Call Processor

CP Clip Point

CP Contention Period

CP Control Plane


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Term Definition

CPA Control Plane Agent

CPD Compliant Portion Declaration

Cpk Process Capability Index, a factor in Statistical Process Control

CPSIP ComPactSIP

CPU Central Processing Unit

CQDDR Channel Quality Driven Data Rate

CR Carriage Return

CR Concurrent Rendering

CRC Cyclic Redundancy Check

CRDs Colour Rendering Dictionaries

CS Chip Select

CS-ACELP Conjugate Structure ACELP (e.g. G.729)

CSA Code Storage Area

CSA Colour Space Array

CSB Chip Select

CSI Camera Serial Interface (MIPI)

CSL CID (character-identified font) Support Library

CSL Complementary Subsystem List

CSP Chip Scale Package

CSP Chip Support Package

CSPI CSR Serial Peripheral Interface

CSR Cambridge Silicon Radio

CTE Coefficient of Thermal Expansion

CTP Cordless Telephony Profile

CTR Counter

CTS Clear To Send

CUPS Common UNIX Printing System

CVBS Colour, Video, Blanking and Sync (i.e. composite video)

CVC Clear Voice Capture

CVSD Continuously Variable Slope Delta Modulation

CW Carrier Wave

CW Continuous Wave

CWI Continuous Wave Interference


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Term Definition

DA Destination Address

DAA Data Access Arrangement

DAC Device Access Code

DAC Digital to Analogue Converter

DB Dummy Bursts

dB-Hz Units of C/No in the case 10log10(C/No) since C/No units are W/(W/Hz)

DBI Display Bus Interface (MIPI)

dBm Decibels relative to 1 mW

DC Direct Current

DCB Distributor Consolidated Billing

DCC Delay Compensation Circuitry

DCD Data Carrier Detect

DCF Design rule for Camera File system (JEITA)

DCF Distributed Coordination Function

DCI Default Check Initialisation

DCS Digital Communications System

DCXO Digitally Compensated crystal Oscillator

DDC Display Data Channel

DDR Double Data Rate

DDS Direct Digital Synthesis

DDT Data Decoding Threshold

DE Data Enable

DEVM Differential Error Vector Magnitude

DFS Dynamic Frequency Scaling

DFU Device Firmware Upgrade

DGPS Differential Global Positioning System

DH Data-High Rate

DH Diffie-Hellman

DHCP Dynamic Host Configuration Protocol

DIAC Dedicated Inquiry Access Code

DIB Digital Isolation Buffer

DI Device Id profile

DIFS Distributed InterFrame Space


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Term Definition

DIL Dual In-Line

DIMM Dual In-line Memory Module

DIST Digital Image STabilization

DivX DivX products from DivX Inc., see www.divx.com

DL Display List

DL DownLink

DLCD Digital Liquid Crystal Display

dll dynamically linked library

DLL Delay Locked Loop

DLL Dynamically Linked Library

DLS Direct Link Setup

DM Data (Medium rate)

DM Device Manager

DM Diagnostic Manager

DMA Dynamic Memory Allocation

DMA Direct Memory Access

DMO DirectX Media Object

DNL Differential Non Linearity (ADC accuracy parameter)

DNR DyNamic Range

DNS Domain Name Service

DNS Domain Name System

DoC Declaration of Compliance

DoP Dilution of Precision

DOS Direct Operating System

DP Data Pulsing

DP Parallel processor in the Quatro DSP core of Quatro 45XX

DPCM Differential PCM

DPD Digital PreDistortion

dpi dots per inch

DPI Display Pixel Interface (MIPI)

DPIT Designated Profile Interoperability Testers

DPOF Digital Print Order Format

DQS Distributed Queuing System


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Term Definition

DR Dead Reckoning (inertial instrument based navigation)

DRAM Dynamic Random Access Memory

DRM Digital Rights Management

DSC Digital Still Camera

DSCP Differentiated Services Code Point

DSP Digital Signal Processor (or Processing)

DSPManager The BlueCore facility allowing hosts to configure data connections within the BlueCore device

DSSS Direct Sequence Spread Spectrum

DTBA Descriptor Table Base Address

DTCM Data Tightly-Coupled Memory

DTD Document Type Definition, a schema language for XML and SGML

DTE Data Terminal Equipment

DTIM Delivery Traffic Indication Message

DTM Driver Test Manager

DTMF Dual-Tone Multiple-Frequency

DTX Discontinuous Transmission

DUN Dial-Up Networking

DUT Device Under Test

DV Data Voice

DV Digital Video

DVD Digital Versatile Disc

DVFS Dynamic Voltage and Frequency Scaling

DVI Digital Video Interface

DVM Digital Volt Meter

e.g. exempli gratia, for example

E-Cell Extended Cell

EAG Embedded Audio Gateway

EAP Extensible Authentication Protocol

EAPOL Extensible Authentication Protocol Over LAN

EAQ Enhanced Audio Quality

EARC Edge-Aligned Ratio Counter

EBI External Bus Interface

eBOM electronic Bill of Materials


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Term Definition

EBU European Broadcasting Union

EC Echo Cancellation

ECC Error Correcting Code

ECEF Earth-Centred, Earth-Fixed

ECL Exception Case List

ECLM Embedded Client Locator Module

EDA Electronic Design Automation

EDCA Enhanced Distributed Channel Access

EDGE Enhanced Data rates for GSM Evolution

EDR Enhanced Data Rate

EE Extended Ephemeris

EEPROM Electrically Erasable Programmable Read Only Memory

EGNOS European Geostationary Navigation Overlay Service

EGPRS Enhanced GPRS

eGPS® enhanced GPS

EHCC Extended HCC

EHCI Enhanced Host Controller Interface

EIA Electronic Industries Alliance

EIFS Extended InterFrame Space

EIR Extended Inquiry Response

EIRP Effective Isotropically Radiated Power

EIT External InTerrupt

ELFR Early Life Failure Rate

EMBR Extended Master Boot Record

EMC ElectroMagnetic Compatibility

EMI ElectroMagnetic Interference

e-MMC embedded-MultiMediaCard

EOC End Of Conversion

EOF End Of File

EPC Enhanced Power Control

EPD Energy Peak Detection

EPP Enhanced Parallel Port

EPR Encryption Pause / Resume


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Term Definition

EPROM Erasable Programmable Read Only Memory

EQ EQualiser

ERP Extended Rate PHY

eSCO extended SCO

ESD Electrostatic Discharge

ESR Equivalent Series Resistance

ESS Extended Service Set (infrastructure network)

ESSID Extended Service Set IDentification

ESTB EGNOS System Test Bed

ETB Embedded Trace Buffer

etc et cetera, and the rest, and so forth

ETM Embedded Trace Module

ETS Extended Training Sequence

ETSI European Telecommunications Standards Institute

EVB EValuation Board

EVK EValuation Kit

EVM Error Vector Magnitude

EVM EValuation Module

EXIF EXchange Image Format

FAE Field Application Engineer

FastPipe A reliable data transfer protocol between the host and the BlueCore device

FAT File Allocation Table

FBGA Fine-pitch Ball Grid Array

FBR Function Basic information Registers

FCB Frequency Correction Beacon

FCC Federal Communications Commission

FCD Flexible Clock Divider

FCL Flow Control Layer

FCOFF Flow Controller OFF

FCT Flow Control Token

FCU Focus Control Unit

FD Face Definition

FDD Frequency Division Duplex


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Term Definition

FDMA Frequency Division Multiple Access

FEC Forward Error Correction

FEM Front End Module

FET Field Effect Transistor

FFB Full Frame Buffer

FFT Fast Fourier Transform

FH Frequency Hopping

FHS Frequency Hop Synchronisation

FHSS Frequency Hop Spread Spectrum

FIFO First-In First-Out (queue)

FIPS Federal Information Processing Standards

FIQ Fast Interrupt reQuest

FIR Finite Impulse Response (filter)

FLAC Free Lossless Audio Codec

FlashPix FlashPix File format for bitmapped-graphics with .FPX extension, which maintains an image inseveral resolutions

FM Frequency Modulation

FMC Fixed-Mobile Convergence

FP Frame Pointer

FP Full Power

FPGA Field Programmable Gate Array

fps frames per second

FPU Floating-Point Unit

FS FastStream

FS File System

FSAA Full Screen Anti-Aliasing

FSI File System Interface

FSK Frequency Shift Keying

FSM Finite State Machine

FT2 FreeType 2

FTA Fine Time Aiding

FTP File Transfer Profile

FTP File Transfer Protocol

FTS Functional Test Suite


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Term Definition

FW FirmWare

g Acceleration equal to gravity at mean sea level (~9.8 m/s2)

G.722 An ITU-T standard wideband speech codec operating at 48, 56 and 64 kbps

Galileo Europe's GNSS system

GAP Generic Access Profile

GATT Generic ATTribute protocol

GBC GPS Baseband Control

GCC GNU C Compiler

GCF Global Certification Forum

GCI General Circuit Interface

GDI Graphic Device Interface

GDOP Geometric Dilution of Precision

GFSK Gaussian Frequency Shift Keying

GGA NMEA Term: Global Positioning System Fix Data

GIAC General Inquiry Access Code

GKI Generic Kernel Interface

GLL Generic Location Layer

GLONASS Global Orbiting Navigational Satellite System

GM Group Management

GMC Global Motion Compensation

GMK Group Master Key

GMT Greenwich Mean Time

GN Group ad-hoc Network (Bluetooth PAN)

GND GrouND

GNSS Global Navigation Satellite System

GOEP Generic Object Exchange Profile

GPIB General Purpose Interface Bus

GPIO General Purpose Input/Output

GPRS General Packet Radio Service

GPS Global Positioning System

GPSK Gaussian Phase Shift Keying

GPSMC GPS Monitor Control

GSA NMEA string: GNSS DOP and Active Satellites


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Term Definition

GSIU General Serial Interface Unit

GSM Global System for Mobile communications

GSMA GSM Association

GSV NMEA string: GNSS Satellites in View

GTE GPS Timing Engine

GTK Graphical Tool Kit

GTK Group Temporal Key

GUI Graphical User Interface

GUID Globally Unique IDentifier

GW GateWay

H4+ Nokia extended H4 protocol

H4DS H4 Deep Sleep

H/W HardWare

HA Host Application

HAN Home Area Network

HAST Highly Accelerated Stress Test

HBM Human Body Model

HC Host Controller

HC Howling Control

HCC Hyperbolic Congruence Code

HCE Host COACH Embedded, i.e. embedded host functionality in the COACH that resides in thecustomer’s software layer. HCE interfaces COACHWare via dedicated API commands.

HCI Host Controller Interface

HD High Definition

HD Host Driver

HD Photo Windows Media Photo

HDLC High-Level Data Link

HDMI High-Definition Multimedia Interface

HDOP Horizontal Dilution Of Precision

HDR High Density Range

HDT High-side Dead Time

HDTV High Definition TeleVision

HE-AAC High-Efficiency Advanced Audio Coding

HEC Header Error Check Correction


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Term Definition

HFP Hands-Free Profile

HFK Hands-Free Kit. Voice-processing configuration used in automotive and other hands-free modesof operation.

HI Header ID

HID Human Interface Device

HMI Human Machine Interface

Host A separate processor controlling a BlueCore device over HCI

HP Hewlett-Packard

HPD Hot Plug Detect

HP IPS Hewlett-Packard International Print Solution

HQ Host Query

HR/DSSS High Rate Direct Sequence Spread Spectrum

HRFWG Home RF Working Group

HS HeadSet

HS High Speed

HSDPA High-Speed Downlink Packet Access

HSP HeadSet Profile

HSP High Speed Port

HSPA HSDPA and HSUPA

HSUPA High Speed Uplink Packet Access

HT Higher Throughput

HTML HyperText Markup Language

HTOL High Temperature Operating Life

HTTP HyperText Transfer Protocol

HV Header Value

HV High (quality) Voice

HW HardWare

HWTL HardWare Tracking Loop

I Input

I²C Inter-Integrated Circuit Interface

I²S Inter-Integrated Circuit Sound

IIS Internet Information Server

i.e. Id est, that is

I/O Input/Output


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Term Definition

IAC Inquiry Access Code

IBSS Independent BSS (ad-hoc network)

IC Integrated Circuit

ICC International Color Consortium

ICD Interface Control Document

ICE In-Circuit Emulator

ICE Interactive Connectivity Establishment

ICFT Initial Carrier Frequency Tolerance

ICP InterCom Profile

ICS Implementation Conformance Statement

ICU Interrupt Control Unit

ID IDentifier

IDC Insulation Displacement Connector

IDE Integrated Development Environment

IDMA Internal Direct Memory Access

IE Information Element

IEC International Electrotechnical Commission

IEEE Institute of Electronic and Electrical Engineers

IETF Internet Engineering Task Force

IF Intermediate Frequency

IFO Intra-Frame Offset

IIR Infinite Impulse Response (filter)

iLBC internet (sic) Low Bit-rate Codec

IMES Indoor MEssaging System

IMG IMaGe subsystem

IMT International Mobile Telecommunications

IMU Inertial Measurement Unit

iNAND integrated NAND

INF Setup INformation File, often used for Windows device drivers

Inferno-NL Inferno running on a Non-Linux operating system

INL Integral Non-Linearity (ADC accuracy parameter)

IOC Interrupt On Complete

IOCTL Input/OutputConTroL (Request)


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Term Definition

IP Intellectual Property

IP Internet Protocol

IP2 Inter-modulation Product 2

IPC See www.ipc.org

Iperf Network performance testing tool

IPM Intelligent Power Management

IPP Internet Printing Protocol

IPR Intellectual Property Rights

IPS FIVE CSR's IPS PCL interpreter

IPS PDFt CSR's IPS PDF interpreter

IPS PS3 CSR's IPS PostScript interpreter

IPS XLC CSR's IPS PCL 6 interpreter

IPS XPS CSR's IPS XPS interpreter

IPv4 Internet Protocol version 4

IPv6 Internet Protocol version 6

IPX Internet Packet Exchange

IQ In-Phase and Quadrature

IQ Modulation In-Phase and Quadrature Modulation

IrDA Infrared Data Association

IRPA International Radiation Protection Association

IRP I/O Request Packet

IRQ Interrupt ReQuest

ISDN Integrated Services Digital Network

ISM Industrial, Scientific and Medical

ISO International Organization for Standardization (sic)

ISP Internet Service Provider

ISR Interrupt Service Routine

IST Interrupt Service Thread

ITC Interrupt Threshold Control

ITCM Instruction Tightly-Coupled Memory

ITG Internal Timing Generator

ITU International Telecommunication Union

ITU-T International Telecommunication Union Standardization Sector (sic)


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Term Definition

IUT Implementation Under Test

IVT Information Validation and Testing Corporation

IXIT Implementation eXtra Information for Testing

J-FET Junction Field Effect Transistor

JEDEC Joint Electron Device Engineering Council (now the JEDEC Solid State Technology Association)

JPEG Joint Photographic Experts Group

JRE Java Runtime Environment

JSR Java Specification Request

JTAG Joint Test Access Group

JTDI JTAG Data In

JTDO JTAG Data Out

KA Keep-Alive block containing non-volatile circuits

Kalimba An open platform DSP co-processor, enabling support of enhanced audio applications, such asecho and noise suppression and file compression / decompression

Kb Kilobit

KB Kilobyte

Kbps Kilobits per second

KITL Kernel Independent Transport Layer

L Left

L2CAP Logical Link Control and Adaptation Protocol

LAC Location Area Code

LAN Local Area Network

LANGID Language Identifiers

LAP LAN Access Point

LAP Lower Address Part

LBIPM Low Battery Intelligent Power Management

LBS Location-Based Service

LC An inductor (L) and capacitor (C) network

LC Link Controller

LCD Liquid-Crystal Display

LCDS Low Current Differential Signal

LCP Link Control Protocol

LCS Location Services

LDO Low (voltage) Drop-Out


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Term Definition

LDT Low-side Dead Time

LED Light-Emitting Diode

LF Line Feed

LF Loop Filter

LFBGA Low-profile Fine-pitch Ball Grid Array

LFSR Linear Feedback Shift Register

LGA Land Grid Array

LHCP Left Hand Circularly Polarised

LIAC Limited Inquiry Access Code

LIFO Last-In First-Out (stack)

LJ Left-Justified

LLA Latitude, Longitude, Altitude

LLC Logical Link Control

LM Link Manager

LMC Lens Motor Control

LMP Link Manager Protocol

LMU Location Management Unit

LMU Location Measuring Units

LNA Low Noise Amplifier

LO Local Oscillator

LP Lower Protocol

LP Low Power

LPC Lost Packet Concealment

LPC Low Pin Count

LPDDR Low Power Double Data Rate

LPF Low Pass Filter

LPL Link Pointer Low

LPL Location Protocol Library

LPM Link Power Management

LPO Low-Power Oscillator

LPT Line Printer Terminal

LQFP Low-profile Quad Flat Pack

LRP Latency / Robustness Preference


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Term Definition

LS Least Significant

LSB Least Significant Bit (or Byte)

LSBF Least-Significant Bit First

LSD Line Side Device

L-SIG Legacy SIGnal

LSL Logical Shift Left

LSM Location Session Manager

LSTO Link Supervision Time-Out event

LUT Look-Up Table

MAC Medium Access Control

MAC Multiplier and ACcumulator

MAP Message Access Profile

MAP Multimedia Application Processor

MAPX CSR's audio processing IC family

MAPI Messaging Application Procedure Interface

MAS Main Application Server

MB Main Board

Mb Megabit

MB MegaByte

MB-OFDM MultiBand Orthogonal Frequency Division Multiplexing

Mbps Megabits per second

MBps MegaBytes per second

MCAP Multi-Channel Adaptation Protocol

MCC Mobile Country Code

MCD Misalignment Change Detection

MCM Multi-Chip Module

MCS Modulation and Coding Scheme

MCU MicroController Unit

MCU Modem Controller Unit

MD5 Message Digest algorithm 5

mDDR mobile DDR

MDP Modem Data Pump

MEIF Measurement Engine InterFace


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Term Definition

meloD meloD AUDIO PROCESSING is CSR's suite of audio algorithms

MEMS Micro Electro Mechanical System

MES RSA BSAFE Micro Edition Suite 3.2.1

MFB Multi-Function Button

MFO Multicast Fan-Out

MFP Multi-Function Peripheral

MFP Multi-Function Product

MIB Management Information Base

MID Message ID

MID Mobile Internet Device

MIDI Musical Instrument Digital Interface

MIH Memory Intent Hints

MIL Mirrorless Interchangeable Lens

MIME Multipurpose Internet Mail Extension

MIMO Multiple-In Multiple-Out

MIPI MIPI Alliance, see www.mipi.org/

MIPS Million Instructions Per Second

MIPS MIPS Technologies Inc, see www.mips.com

MISO Master In Slave Out

MITM Man In The Middle

MJPEG Motion JPEG (Joint Photographic Experts Group)

MKV MatrosKa Video

MLC MultiLayer Ceramic

MLC Multi-Level Cell

MLM Multi-Layer Mask

MLME MAC Layer Management Entity

MM Multi-Master

MMAC Multimedia Mobile Access Communication

MMC MultiMediaCard

MMCX Micro-Miniature CoaXial

MMI Man-Machine Interface

MMPDU MAC Management Protocol Data Unit

MMU Memory Management Unit


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Term Definition

MNC Mobile Network Code

modem modulator demodulator

MO-LR Mobile Originated Location Request

MOS Mean Opinion Score

MOS Metal Oxide Semiconductor

MOSI Master Out Slave In

MOST Media Oriented Systems Transport (databus)

MOST Mobile Open Systems Technology

MOV Apple QuickTime MOVie file format

MP MegaPixel(s)

MP Micro Power

MP3 MPEG-1 audio layer 3

MP4 MPEG-4 (Moving Picture Experts Group 4) audio and video compression standard

MPDU MAC Protocol Data Unit

MPM Micro Power Mode

MPEG Moving Picture Experts Group

MPST Memory Parameters Scan Tool

MPU MicroProcessor Unit

MRT Multiple on-chip Render Targets

MS Mobile Station

MS Most Significant

MSA Mobile-Station Assisted

MSAA Multi-Sample Anti-Aliasing

MSAS Multi-functional Satellite Augmentation System (Japan)

MSB Mobile-Station Based

MSB Most Significant Bit (or Byte)

mSBC modified Sub-Band Coding

MSBF Most Significant Bit First

MSC Message Sequence Chart

MSC Mobile Switching Center

MSDU MAC Service Data Unit

MSK NMEA string: MSK Receiver Interface

MSL Mean Sea Level


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Term Definition

MSL Moisture Sensitivity Level

MSM Mini-State Machine

MSPI Master SPI

Msps Megasamples per second

MSS NMEA string: MSK Receiver Signal

MT-LR Mobile Terminated Location Request

MTBA Multiple Traffic ID Block Acknowledgement

MTP Media Transfer Protocol

MTU Maximum Transmission Unit

MusiCore Group term for CSR's range of single-chip audio and Bluetooth wireless technology ICs

Mutex Mutual exclusion (object)

MUX MUltipleXer

MXDW Microsoft XPS Document Writer

N/A Not Applicable

NAK Negative AcKnowledge

NAND Not AND (electronic logic gate)

NAP Network Access Point (Bluetooth PAN)

NAP Non-significant Address Part

NAT Network Address Translation

NAV Network Allocation Vector

NB Narrow Band

NB Normal Burst

NBC Number of BroadCasts

NBNS NetBIOS Naming Service

NC Not Connect

NCO Numerically Controlled Oscillator

NCP Number of Completed Packets

NDA Non-Disclosure Agreement

NDIS Network Driver Interface Specification

NDVC Noise Dependent Volume Control

NetBIOS Network Basic Input/Output System

NetBIOS-DS NetBIOS Datagram Service

NF Noise Floor


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Term Definition

NF Not Fitted

NFC Near Field Communication

NFC-WI NFC-Wired Interface

NFPBF Non-Flushable Packet Boundary Flag

NI Network Initiated

NiCd Nickel Cadmium

NiMH Nickel Metal Hydride

NLP Non-Linear Processing

NMEA National Marine Electronics Association

NOP No OPeration

NOR Not OR (electronic logic gate)

NR Noise Reduction

NRE Non-Recurring Expense

NS Noise Suppression

NSC Non-Supported Command

NSMD Non-Solder Mask Defined

NT Network Terminal

NTC Negative Temperature Coefficient thermistor temperature monitoring circuit

NTSC National Television System Committee

NVM Non-Volatile Memory

O Output

O.C. Open Circuit

OAL OEM Adaptation Layer

OBEX OBject EXchange Protocol

OCD Optional Content Dictionary

OCF Opcode Command Field

OCF Original Composite Fonts

OCMD Optional Content Membership Dictionary

ODM Original Design Manufacturer

ODO ODOmeter

OEM Original End Manufacturer

OFDM Orthogonal Frequency Division Multiplexing

OFFT Overlap FFT


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Term Definition

OGF Opcode Group Field

OHCI Open Host Controller Interface

OID Object IDentifier

OM Options Manager

OMF Object Module Format

OOB Out-Of-Band

OOBE Out Of the Box Experience

Op Operational

OpenGL Open Graphics Library

OpenGL ES Open Graphics Library for Embedded Systems

OpenVG Open Vector Graphics

Operator An active component of DSPManager that processes data streams

OPP Object Push Protocol profile

OS Operating System

OSD On-Screen Display

OSI Open Systems Interconnect

OSKA Operating System Kernel Abstraction

OSP One Socket Protocol

OSP Organic Solderability Preservative

OTA Over-The-Air

OTD Observed Time Differences

OTG USB On-The-Go

OTP One-Time Programmable

OUI Organizationally (sic) Unique Identifier

P-Code Precise Code

PA Power Amplifier

PABX Private Automatic Branch Exchange

PAL Phase Alternating Line (TV)

PAL Platform Abstraction Layer

PAN Personal Area Network

PANU PAN User (Bluetooth PAN)

PAPR Peak to Average Power Reduction

Pb The chemical symbol for lead


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Term Definition

PBAP PhoneBook Access Profile

PBB (PolyBrominated Bi-Phenyl)

PBC Push Button Configuration

PBCC Packet Binary Convolutional Code

PBDE PolyBrominated Diphenyl Ether

PBF Packet Boundary Flags

PBI Peripheral Bus Interface

PC Personal Computer

PC Program Counter

PCB Printed Circuit Board

PCF Point Coordination Function

PCF Portable Compiled Font

PCI Peripheral Component Interconnect

PCIe PCI express

PCM Pulse Code Modulation

PCMCIA Personal Computer Memory Card International Association

PCO Phased Coexistence Operation

PCS Personal Communications System

PD Pull-down

PDA Personal Digital Assistant

PDF Portable Document Format

PDI Page Description Interface

PDL Page Description Language

PDL Paired Device List

PDOP Position Dilution Of Precision

PDR Pedestrian Dead Reckoning

PDU Protocol Data Unit (packet or message)

PEL Picture ELement (i.e. pixel)

PEL Position Estimator Layer

PER Packet Error Rate

Persistent Store Store of configuration values in non-volatile memory

PESQ Perceptual Evaluation of Speech Quality

PFM Pulse Frequency Modulation


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Term Definition

PFRs Portable Font Resources

PGM ProGraM

PHB Per-Hop Behavior (sic)

PHY PHYsical (layer)

PI Programmable Input

PICS Profile Implementation Confirmation Statement

PICS Protocol Implementation Confirmation Statement

PictBridge Direct printing standard from the Camera and Imaging Products Association (CIPA)

PID Product ID used to identify USB devices

PIFA Planar Inverted ‘F’ Antenna

PIM Personal Information Manager

PIN Personal Identification Number

PIP Picture-In-Picture

PIO Parallel Input/Output

PIO Programmable Input/Output, also known as general purpose I/O

PIXIT Protocol Implementation eXtra Information for Testing

PJL Printer Job Language

pk-pk peak-to-peak

PLC Packet Loss Concealment

plc public limited company

PLCP Physical Layer Convergence Protocol

PLL Phase Lock Loop

PLR Packet Loss Rate

Plug n Go® CSR IC with RF matching components (including balun) within the package

PM Physical Memory

PMC Power Management Capabilities

PMCSR Power Management Control/Status Register

PMD Physical Medium Dependent

PMIC Power Management Integrated Circuit

PMK Pairwise Master Key

PMKID Pairwise Master Key IDentifier

PMKSA Pairwise Master Key Security Association

PMP Portable Media Player


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Term Definition

PMU Power Management Unit

PND Personal Navigation Device

PNS Primary Noise Shaper

PO Programmable Output

POP Persistent Organic Pollutants

POR Power On Reset

POSIX Portable Operating System Interface

POTS Plain Old Telephone Service

PP Port Power

ppb parts per billion

PPD PostScript Printer Description

Ppk Process Performance Index, a factor in Statistical Process Control

ppm parts per million

PPP Point to Point Protocol

PPS Precise Positioning Service

PPS Port Power Switching

PRBS Pseudo Random Bit Sequence

PRD Program Reference Document

Pre-PIT Preliminary Profile Interoperability Testers

PRN Pseudo-Random Noise

PRP Power Management Register

PS Parametric Stereo

PS Persistent Store

PS Power Saving

PS Programme Service name

PS Key Persistent Store Key

PsCli Persistent Store Command line interface

PSD Power Spectral Density

PSK Phase Shift Keying

PSK Pre-Shared Key

PSM Protocol Service Multiplexer

PSMP Power Save Multi-Poll

PSP PlayStation Portable


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Term Definition

PSPCli PlayStation Portable Command line interface

PSQM Perceptual Speech Quality Measure

PSRR Power Supply Rejection Ratio

PSTN Public Switched Telephone Network (POTS)

PSTool BlueSuite utility

PSU Power Supply Unit

PTA Packet Traffic Arbitrator

PTAT Proportional to Absolute Temperature

PTC Port Test Control

PTCRB PCS-Type Certification Review Board

PTF Push-To-Fix

PTH Plated-Through Hole

PTK Pairwise Temporal Key

PTP Picture Transfer Protocol

PTY Programme TYpe

PU Pull-Up

pUniTest Name of device control library (DLL) for UniFi production testing

PVC Poly Vinyl Chloride

PVT Position, Velocity and Time

PVT Process, Voltage and Temperature

PWM Pulse Width Modulation

PWR PoWeR

PWRC PoWeR Control

PWRDN PoWeR-DowN

QAM Quadrature Amplitude Modulation

QBSS Quality of Service BSS

QFN Quad-Flat No-lead

QH Queue Head

qMan queue Manager

QoP Quality of Position

QoS Quality of Service

QPL Qualified Products List

QPLN Qualified Product Listing Notice


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Term Definition

QPSK Quadrature Phase Shift Keying

QPWM Quanta Pulse Width Modulator

QZSS Quasi-Zenith Satellite System

R Right

R3T Reduced Raster Resolution Technology

RADIUS Remote Authentication Dial-In User Service

RAM Random Access Memory

RAT Radio Access Technology

RBDS Radio Broadcast Data System

RC A Resistor and Capacitor network

RC4 Rivest Cipher 4

RCA Radio Corporation of America, normally used to refer to a RCA connector (also known as phonoconnector or Cinch connector)

RCLK Reference CLocK

RCPI Received Channel Power Indicator

RCS Revision Control System

RDS Radio Data System

REB REad enaBle

RF Radio Frequency

RFA RF Amplifier

RFCli RFCOMM Command line interface

RFCOMM Radio Frequency COMMunication. Protocol layer providing serial port emulation over L2CAP

RFS Receive Sync Signal

RGB Red Green Blue

RH Relative Humidity

RHCP Right Hand Circularly Polarised

RIFF Resource Interchange File Format

RIFS Reduced Inter-Frame Spacing

RIL Radio Interface Library

RIR Reduced Image Resolution

RISC Reduced Instruction Set Computer

RJ Right-Justified

RLP Roaming Location Protocol

RM Rendering Manager


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Term Definition

RMC Recommended Minimum Specific GNSS Data

rms root mean squared

RMVB RealMedia Variable Bitrate

RNDIS Remote Network Driver Interface Specification

RO Read Only

RoHS Restriction of Hazardous Substances in Electrical and Electronic Equipment Directive (2002/95/EC)

ROPs Raster OPerationS

ROM Read Only Memory

RPC Remote Procedure Call

RPM RPM Package Manager

RR Radio Resource

RRC Radio Resource Control

RRLP Radio Resource Location Services Protocol

RS-232 Recommended Standard-232, a TIA/EIA standard for serial transmission between computersand peripheral devices (modem, mouse, etc.)

RSC Receive Sequence Counter

RSC Resource Sharing Control module

RSN Robust Security Network

RSNA Robust Security Network Association

RSSI Received Signal Strength Indication

RST ReSeT

RT Radio Text

RTC Real-Time Clock

RTCIO Real-Time Clock Input Output

RTCM Radio Technical Commission for Maritime Services

RTCP Real-Time Control Protocol

RTE Run-Time Environment

RTOS Real-Time Operating System

RTP Real-time Transport Protocol

RTS Request To Send

RUT Receiver Under Test

RVDS RealView Developer Suite

RW Read Write


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Term Definition

RX Receive or Receiver

S-parameters Scattering parameters. A way to measure a chip's characteristics when a fixed signal is applied.

S/W SoftWare

SA Selective Availability

SAP Service Access Point

SAPI Service Access Point Identifier

SAR Specific Absorption Rate

SAR Successive Approximation Register (ADC)

SATA Serial Advanced Technology Attachment

SAW Surface Acoustic Wave

SB-ADPCM Sub-Band ADPCM (e.g. G.722)

SBAS Satellite Based Augmentation System

SBC Session Border Controller

SBC Sub-Band Coding

SBR Spectral Band Replication

SBS Suspend/resume

SBU SiRF Bridge Unit

SBZ Should Be Zero

SCB SChmitt-trigger Bidirectional signal

SCH Synchronisation CHannel

SCI SChmitt-trigger Input signal

SCL Serial Clock Line

SCM Single-Chip Modem

SCMS Serial Copy Management System (SCMS-T). A content protection scheme for secure transportand use of compressed digital music

SCO Synchronous Connection-Oriented

SCSI SDIO Continuous SPI Interrupt

SCSI Small Computer System Interface

SCU Snoop Control Unit

SD Storage Device

SD Secure Digital

SDA Serial DAta (line)

SDAP Service Discovery Application Profile

SDC SDIO Direct Commands


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Term Definition

SDC Service Discovery Client

SDD Service Discovery DataBase

SDDCRS Sigma-Delta Downsampling and Conversion ReSampler

SDHC Secure Digital High Capacity

SDIO Secure Digital Input/Output

SDK Software Development Kit

SDL Specification and Description Language

SDMMC Storage Device MultiMedia Card

SDP Service Discovery Protocol; element of Bluetooth

SDR Single Data Rate

SDRAM Synchronous Dynamic Random Access Memory

SDS Service Discovery Server

SDXC Secure Digital eXtended Capacity

SE Secure Elements

SEID Stream End-point IDentifier

SEN System-Equivalent Noise

SEP Spherical Error Probability

SEP Stream End Point

SF Special Function

SFCU Synchronous Flash Control Unit

SFFS Super-Fast Frame Sync

SFNT Soft FoNT

SGEE Server Generated Extended Ephemeris

SHA Secure Hash Algorithm

SI International System of Units

sic Latin, meaning thus or so used in brackets after a word or phrase to indicate that it is quotedaccurately, even if it appears to be a mistake (or contradicts CSR's style guidelines)

SID Sub ID

SIFS Short Inter-Frame Space

SIG (Bluetooth) Special Interest Group

SiGe Silicon-Germanium

SIMD Single Instruction Multiple Data

Sink A component of BlueCore devices that consumes data

SIP Serial Interface Protocol


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Term Definition

SIP Session Initiation Protocol

SLC Service Level Connection

SLC Single-Level Cell

SLIMbus Serial Low-power Inter-chip Media bus

SLIP Serial Link Internet Protocol

SLC Single-Level Cell

SLM SiRF Location Manager

SLS SiRFLoc Server

SMA Sub Miniature version A connector

SMB SDIO Multi-Block

SMD Solder Mask Defined

SMD Surface Mounted Device

SME Station Management Entity

SME Subject Matter Expert

SMLC Serving Mobile Location Centre

SMP Security Manager Protocol

SMP Symmetric Multi-Processor

SMPS Spatial Multiplexing Power Save

SMPS Switch-Mode Power Supply

SMS Short Message Service

SMS4 A propriatary block cipher used in WAPI

SMSRX Short Messaging Service Receive

SMSTX Short Messaging Service Transmit

SMT Surface Mounted Technology

SNAP Sub-Network Access Protocol

SNC Stereo Noise Control

SNK SiNK

SNMP Simple Network Management Protocol

SNR Signal-to-Noise Ratio

SNS Secondary Noise Shaper

SoC System On-Chip

SOF Start Of (micro) Frame

SOLT Short-Open-Load-Through. A calibration technique.


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Term Definition

Source A component of BlueCore devices that generates data

SP Service Period

SP Stack Pointer

SPC Statistical Process Control

SPDIF Sony/Philips Digital InterFace (also IEC 958 type II, part of IEC-60958). An interface designedto transfer stereo digital audio signals between various devices and stereo components withminimal loss.

SPI Serial Peripheral Interface

SPI System Programming Interface

SPL Sound Pressure Level

SPP Serial Port Profile

SPS Samples Per Second, sometimes "SPs"

SPS Standard Positioning Service

SPU Serial Port Unit

SPXO Simple Packaged Crystal Oscillator

SQIF Serial Quad I/O Flash (interface)

SQL Structured Query Language, an interactive and programming language for querying databasesand modifying their data.

SRAM Static Random Access Memory

SRC SouRCe

SRW SDIO Read Wait

SS Supplementary Services

SSB Single Side-Band

SSB SiRF Standard Binary

SSD System Side Device

SSI Signal Strength Indication

SSID Service Set Identifier (network name)

SSL Secure Sockets Layer

SSM System State Machine

SSP Secure Simple Pairing

SSP Synchronous Serial Port

SSR Sniff Sub-Rating

ST Single Task

STA STAtion (includes AP in IEEE 802.11, but not in Wi-Fi)

STBC Space Time Block Coding


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Term Definition

STUN Simple Traversal of UDP through NATs

SUPL Secure User Plane Location

SUT System Under Test

SV Space Vehicle

SW SoftWare

SWAP Shared Wireless Access Protocol

SWP Single-Wire Protocol

SWTL SoftWare Tracking Loop

TA Terminal Adaptor

TA Timing Advance

TA Traffic Announcement identification

TAE Terminal Adaptor Equipment

TBC To Be Confirmed

TBD To Be Defined

TBF Time Between Fixes

TBTT Target Beacon Transmission Time

TC Test Case

TC Test Control

TCH Traffic CHannel

TCI Test Control Interface

Tcl The Tool command language, a scripting language

TCLAS Traffic CLASsification

TCM Tightly-Coupled Memory

TCP Transmission Control Protocol

TCP/IP Transport Control Protocol/Internet Protocol

TCRL Test Case Reference List

TCS Telephony Control protocol Specification

TCS-BIN Telephony Control protocol Specification BINary

TCVCXO Temperature Controlled / Voltage Controlled crystal Oscillator

TCXO Temperature Compensated crystal Oscillator

TCXO Temperature Controlled crystal Oscillator

TD Transfer Descriptor

TDD Time Division Duplex


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Term Definition

TDM Time Division Multiplexing

TDMA Time Division Multiple Access

TDOP Time Dilution Of Precision

TERL Test Equipment Reference List

TFBGA Thin Fine-Pitch Ball Grid Array

TFS Transmit Sync Signal

TG Timing Generator

THD Total Harmonic Distortion

THD+N Total Harmonic Distortion and Noise

TID Traffic IDentifier

TIFF Tagged Image File Format

TIM Traffic Indication Map

TKIP Temporal Key Integrity Protocol

TL TerminaL

TLS Transport Layer Security

TLV Type, Length, Value

TMC Traffic Message Channel

TOW Time Of Week

TP Test Point

TP Test Purposes

TP Traffic Programme identification

TricklePower™ Power-saving feature on SiRFstarIV™

TPC Transmit Power Control

TPO Transmitter Power Output

TRC Tone Response Curve

TriG™ Group term for CSR’s range of Triple GNSS (GPS, GLONASS and Galileo) ICs

TRL Through-Reflect-Line. A calibration technique.

TS Timing Stream

TS Touch Screen

TS Transport Stream

TSC TKIP Sequence Counter

TSC Touch Screen Controller

TSCIF Temporary Sensitive Compartmented Information Facility


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Term Definition

TSF Timing Synchronisation Function

TSID Traffic Stream IDentifier

TSPEC Traffic SPECification

TSS Test Suite Structure

TTB Time-Transfer Board

TTCN Tree and Tabular Combined Notation

TTF Time To Fix

TTFF Time To First Fix

TTL Time To Live

TTP Tiny Transport Protocol

TTR Time-To-Reacquisition

TTS Text-To-Speech

TU Time Unit (1024 microseconds)

TURN Traversal Using Relay NAT

TV TeleVision

TWAIN Image capture API, see www.twain.org

TWC Three Way Calling

TX Transmit or Transmitter

TXD Transmit Data

TXOP Transmit Opportunity

TXSR Self-refresh Exit Time

UA User Asynchronous

UAP Upper Address Part

UART Universal Asynchronous Receiver Transmitter

U-APSD Unscheduled Automated Power Save Delivery

UBM Under-Bump Metallisation

UC User Control

UCID Universal Cell ID

UDI UniFi Device Interface

UDMA Ultra-Direct Memory Access

UDP User Datagram Protocol

UDP/IP User Datagram Protocol/Internet Protocol

UFE Universal Front End


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Term Definition

UFFS Ultra-Fast Frame Sync

UFST Universal Font Scaling Technology

UHCI Upper Host Control Interface

UI User Interface

UIAC Unlimited Inquiry Access Code

UICC Universal Integrated Chip Card

UL UpLink

ULPI UI+ Low-Pincount Interface

UTLI UTmi+ Low pin Interface (12-pin interface standard for connecting USB core logic to a USBtransceiver)

UltraCore® Group term for CSR’s range of Ultra-Wideband ICs

UMA Unlicensed Mobile Access

UMPC Universal Mobile Personal Computer

UMTS Universal Mobile Telecommunications System

UniCli UniFi Command line interface

UniFi® Group term for CSR’s range of ICs designed to meet IEEE 802.11 standards

Unity Collective name for CSR’s Bluetooth/Wi-Fi coexistence schemes

Unity+ CSR’s advanced coexistence scheme. Extra signalling wire used in conjunction with Unity-3 orUnity-3e for improved coexistence with periodic Bluetooth activity.

Unity-3 De facto industry standard 3-wire coexistence signalling scheme

Unity-3e Variant of Unity-3 with tighter timings for enhanced performance

UniVox VoIP phone based on CSR's UniFi single-chip Wi-Fi technology

UP User Plane

UP User Priority

UPA User Plane Agent

URB USB Request Block

URI Uniform Resource Identifier

URL Uniform Resource Locator

US United States

US User Synchronous

USART Universal Serial Asynchronous Receiver Transmitter

USB Universal Serial Bus

USB Upper Side-Band

USB-IF USB Implementers Forum


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Term Definition

USP Universal Serial Ports

USP Universal Storage Platform

UTC Co-ordinated Universal Time

UUID Universally Unique IDentifier

UUT Unit Under Test

UWB Ultra-WideBand

VAD Voice Activity Detection

Varid Variable Identifier

VB Visual Basic

VBG Voltage BandGap

VCO Voltage Controlled Oscillator

VCTCXO Voltage Controlled Temperature Compensated crystal Oscillator

VDOP Vertical Dilution of Precision

VDP Variable Data Processing

VFBGA Very thin, Fine pitch, Ball Grid Array

VFP Vector Floating Point

VGA Variable Gain Amplifier

VGA Video Graphics Array

VGP Vertex Geometry Processor

VGS Volume Gain Setting

VI VIdeo

VI Virtual Instrument

VID Value ID

VID Vendor ID used to identify USB devices

VIP Video Input Port

VIPS Video Image Printer System

VLAN Virtual Local Area Network

VLMU Virtual Local Measurement Unit

VM Virtual Machine

VNA Vector Network Analyser

VO VOice

VoIP Voice over Internet Protocol

VoWi-Fi Voice over Wi-Fi


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Term Definition

VPP Video Post Processor

VREG Linear Voltage REGulator

VSWR Voltage Standing Wave Ratio

VTG NMEA string: Course Over Ground and Ground Speed

VU Vendor Unique

W3C World Wide Web Consortium

WAAS Wide Area Augmentation System

WAE Wireless Application Environment

WAP Wireless Application Protocol

WAPI WLAN Authentication and Privacy Infrastructure

WBE WideBand for Everyone

WBFH WideBand Frequency Hopping

W-CDMA Wideband Code Division Multiple Access

WCS Wireless Coexistence System

WD WatchDog module

WDP Wireless Datagram Protocol

WDR WatchDog Reset

WDS Wireless Distribution System

WE Write Enable

WEB Write EnaBle (active low)

WEL Write Enable Latch

WEP Wired Equivalent Privacy

WEXT Wireless EXTension

WFA Wi-Fi® Alliance

WGS-84 World Geodetic System (1984)

WHCI Wireless Host Controller Interface

WHQL Windows® Hardware Qualification Labs

Wi-Fi® Wireless Fidelity (IEEE 802.11 wireless networking)

Wi-Fi ProtectedSetup™

A standard for easy and secure establishment of a wireless home network, created by the Wi-Fi Alliance

WIA Windows Imaging Acquisition

WiMedia Radio platform standard for high-speed Ultra-Wideband (UWB) wireless connectivity

WinCE Windows Compact Edition

WLAN Wireless Local Area Network


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Term Definition

WLCSP Wafer Level Chip Scale Package

WLK Windows Logo Kit

WLL Wireless Local Loop

WMA Windows Media Audio

WML Wireless Markup Language

WMM® Wi-Fi Multimedia

WMM-AC WMM Admission Control

WMM-PS WMM Power-Save

WMM-SA WMM Scheduled Access

WMR WarM Reset

WMV Windows Media Video

WNR Wind Noise Reduction

WO Write Only

WPA® Wi-Fi Protected Access®

WPA2® Wi-Fi Protected Access 2 (same as IEEE 802.11i)

wpa_supplicant IEEE 802.1x/WPA component used in the Linux client stations

WPF Windows Presentation Foundation

WPS Wi-Fi Protected Setup (DO NOT ABBREVIATE)

WS Word Select

WSD Web Services on Devices

WSP Wireless Session Protocol

WTA Wireless Telephony Application

WTP Wireless Session Protocol

WUG Wireless User Group

WUSB Wireless Universal Serial Bus

www World Wide Web

WZC Wireless Zero Config (Windows)

X eXcluded

XAP Low-power silicon-efficient RISC microprocessor

XCORR Cross CORRelation

XO Crystal Oscillator

XI²C eXtended I²C

xIDE CSR's Integrated Development Environment for BlueCore applications


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Term Definition

XIO eXtended Input Output

XML eXtensible Markup Language, a general-purpose specification for creating custom markuplanguages

XPS XML Paper Specification

XTAL Crystal

YABCSP Variant of BCSP designed for embedded applications

YUV Luminance-Bandwidth-Chrominance

Z Usually in the phrase high Z to mean high impedance

ZDA NMEA string: Time & Date


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Documents

Glossary of Technical Terms - Octopartdatasheet.octopart.com/DK-ADAPTOR-10178-1A-CSR-datasheet-32035489.pdf2G 2nd Generation of mobile communications technology ... BTS Base Transceiver