Toradex Verdin - Page 9

Verdin Carrier Board Design Guide
Preliminary – Subject to Change
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Abbreviation
Explanation
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), two wire bus based on the I
2
C specifications, used specially in x86
design for system management.
SoC
System on a Chip, IC which integrates the main component of a computer on a single chip
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
UFP
Upstream Facing Port, USB Type-C port that acts as a client
UART
Universal Asynchronous Receiver/Transmitter, serial interface, in combination with a transceiver a 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