Toradex Colibri - Page 8

Colibri Carrier Board Design Guide
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Abbreviation
Explanation
Since the first successful application was the Flat Panel Display Link, LVDS has become synonymous
with this interface. In this document, the term LVDS is used for the FPD-Link interface.
MIPI
Mobile Industry Processor Interface Alliance
MDI
Medium Dependent Interface - a physical interface between Ethernet PHY and cable connector
MDIX
Medium Dependent Interface Crossed - an MDI interface with crossed RX and TX interfaces
mini PCIe
PCI Express Mini Card - card form factor for internal peripherals. The interface features PCIe and USB
2.0 connectivity
MMC
MultiMediaCard - flash memory card
MSB
Most Significant Bit
mSATA
Mini-SATA - a standardized form factor for small solid-state drive, similar dimensions as mini PCIe
N/A
Not Available
N/C
Not Connected
OD
Open-Drain
OTG
USB On-The-Go - a USB host interface that can also act as a USB client when connected to another host
interface
OWR
One Wire (1-Wire) - a low-speed interface that needs just one data wire plus ground
PCB
Printed Circuit Board
PCI
Peripheral Component Interconnect - parallel computer expansion bus for connecting peripherals
PCIe
PCI Express - high-speed serial computer expansion bus, replaces the PCI bus
PCM
Pulse-Code Modulation - digital representation of analog signals and a standard interface for digital audio
PD
Pull Down Resistor
PHY
Physical Layer of the OSI model
PMIC
Power Management IC - integrated circuit that manages amongst others the power sequence of a system
PU
Pull-up Resistor
PWM
Pulse-Width Modulation
RGB
Red Green Blue - color channels in standard display interfaces
RJ45
Registered Jack - common name for the 8P8C modular connector that is used for Ethernet wiring
RS232
Single-ended serial port interface
RS422
Differential signaling serial port interface - full-duplex
RS485
Differential signaling serial port interface - half-duplex, multi-drop configuration possible
R-UIM
Removable User Identity Module - identifications card for CDMA phones and networks, an extension of
the GSM SIM card
S/PDIF
Sony/Philips Digital Interconnect Format - optical or coaxial interface for audio signals
SATA
Serial ATA, high-speed differential signaling interface for hard drives and SSD
SD
Secure Digital - flash memory card
SDIO
Secure Digital Input Output - an external bus for peripherals that uses the SD interface
SIM
Subscriber Identification Module - identification card for GSM phones
SMBus
System Management Bus (SMB) - a two-wire bus based on the I
2
C specifications, used mainly in x86
design for system management.
SoC
System on a Chip - IC which integrates the main component of a computer on a single chip
SO-DIMM
Small Outline Dual Inline Memory Module - form factor for mobile RAM modules, the Colibri module uses
the SO-DIMM (DDR, 2.5V variant) connector as the primary interface
SPI
Serial Peripheral Interface Bus - synchronous four-wire full-duplex bus for peripherals
TIM
Thermal Interface Material - thermal conductive material between CPU and heat spreader or heat sink
TMDS
Transition-Minimized Differential Signaling - serial high-speed transmitting technology that is used by DVI
and HDMI
TVS Diode
Transient-Voltage-Suppression Diode - diode that is used to protect interfaces against voltage spikes
UART
Universal Asynchronous Receiver/Transmitter - serial interface, in combination with a transceiver an
RS232, RS422, RS485, IrDA, or similar interface can be achieved
USB
Universal Serial Bus - serial interface for internal and external peripherals
VCC
Positive supply voltage
VGA
Video Graphics Array - analog video interface for monitors
Table 1: Abbreviations