Toradex Verdin, Manual

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Verdin Carrier Board Design Guide
Preliminary
– Subject to Change
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Abbreviation Explanation
GND Ground
GPI General Purpose Input
GPIO General Purpose Input/Output, pin that can be configured being an input or output
GPO General Purpose Output
GSM Global System for Mobile Communications
HDA High Definition Audio (HD Audio), digital audio interface between CPU and audio codec
HDCP High-Bandwidth Digital content Protection, copy protection system that is used by HDMI beside others
HDMI
High-Definition Multimedia Interface, combines audio and video signal for connecting monitors, TV sets or
Projectors, electrical compatible with DVI-D
I
2
C Inter-Integrated Circuit, two-wire interface for connecting low-speed peripherals
I
2
S Integrated Interchip Sound, serial bus for connecting PCM audio data between two devices
IrDA Infrared Data Association, infrared interface for connecting peripherals
JTAG Joint Test Action Group, widely used debug interface
LCD Liquid Crystal Display
LSB Least Significant Bit
LVDS
Low-Voltage Differential Signaling, electrical interface standard that can transport high-speed signals over
twisted-pair cables. Many interfaces like PCIe or SATA use this interface. Since the first successful
application was the Flat Panel Display Link, LVDS became a synonymous for this interface. In this
document, the term LVDS is used for the FPD-Link interface.
MAC Medium Access Control, is part of the second layer (data link layer) in the Ethernet stack
MII Media-Independent Interface, interface between Ethernet MAC and PHY for up to 100Mb/s
MIPI Mobile Industry Processor Interface Alliance
MDI Medium Dependent Interface, physical interface between Ethernet PHY and cable connector
MDIO
Management Data Input/Output, an interface that is used for controlling the Ethernet PHY. The bus
consists of the MDC clock and the MDIO bidirectional data signal.
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
MXM3
Mobile PCI Express Module (second generation), graphic card standard for mobile device, the Apalis form
factor uses the physical connector but not the pin-out and the PCB dimensions of the MXM3 standard.
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 USB client when connected to another host
interface
OWR One Wire (1-Wire), low-speed interface which 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, digitally representation of analog signals, 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
QSPI Quad SPI, SPI interface with four bidirectional data signals
RGB Red Green Blue, color channels in common display interfaces
RGMII Reduced Gigabit Media-Independent Interface, interface between Ethernet MAC and PHY for up to 1Gb/s
RJ45 Registered Jack, common name for the 8P8C modular connector that is used for Ethernet wiring
RMII Reduced Media-Independent Interface, interface between Ethernet MAC and PHY for up to 100Mb/s