Abbreviations

Standard units of measure used in this developer note include:

A

amperes

MB

megabytes

cm

centimeters

Mbps

megabits per second

dB

decibels

Mbit

megabits

GB

gigabytes

MHz

megahertz

Hz

hertz

mm

millimeters

KB

kilobytes

ns

nanoseconds

kg

kilograms

V

volts

kHz

kilohertz

VDC

volts direct current

mA

milliamperes

Other abbreviations used in this note include:

$n

hexadecimal value n

10Base-T

an Ethernet standard for data transmission at 10 Mbits per second

100Base-T

an Ethernet standard for data transmission at 100 Mbits per second

A/D

analog to digital

AGP

accelerated graphics port

ANSI

American National Standards Institute

API

application programming interface

ATA

Advanced Technology Attachment

ATAPI

ATA Packet Interface

CAS

column address strobe

CAV

constant angular velocity

CD

compact disc

CD-ROM

compact disc read-only memory

CLV

constant linear velocity

CPU

central processing unit

D/A

digital to analog

DAA

data access adapter

DB-DMA

descriptor-based direct memory access

DDR

double data rate, a type of SDRAM

DIMM

Dual Inline Memory Module

DMA

direct memory access

DRAM

dynamic random-access memory

EDO

extended data out

EEPROM

electrically eraseable programmable ROM

EIDE

enhanced integrated device electronics

G4

Generation 4, the fourth generation of PowerPC microprocessors, incorporating Altivec technology

GART

graphics address remapping table

GND

ground

HCRP

hardcopy cable replacement profiler

HFS

hierarchical file system

HID

human interface device, a class of USB devices

IC

integrated circuit

IDE

integrated device electronics

IEC

International Electrotechnical Commission

IIC (I2C)

inter IC control bus

IIS (I2S)

inter IC sound bus

I/O

input and output

Intrepid

memory controller and I/O device and disk controller

ISM

industrial, scientific, and medicine

IR

infrared

ISO

International Organization for Standardization

JEDEC

Joint Electron Device Engineering Council

L1

level 1 or first level

L2

level 2 or second level

LAN

local area network

LED

light emitting diode

MAC

media access controller

Mac OS

Macintosh Operating System

modem

modulator-demodulator

NMI

nonmaskable interrupt

OHCI

Open Host Controller Interface

OS

operating system

PCI

Peripheral Component Interconnect

PLL

phase-locked loop

RADIUS

Remote Authentication Dial-In User Service

RAM

random-access memory

RCA

Radio Corporation of America

rms

root mean square

ROM

read-only memory

SCSI

Small Computer System Interface

SDRAM

synchronous dynamic RAM

SGRAM

synchronous graphics RAM

SNR

signal to noise ratio

SPD

Serial Presence Detect

THD

total harmonic distortion

THD+N

total harmonic distortion plus noise

USB

Universal Serial Bus

VCC

positive supply voltage (voltage for collectors)

VPN

virtual private network

Wi-Fi

wireless fidelity

ZCLV

zone constant linear velocity