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2017
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Terminology
Term
Description
PCIe
Peripheral Component Interface Express – next-generation high speed Serialized I/O bus
PCI Express Lane
One PCI Express Lane is a set of 4 signals that contains two differential lines for
Transmitter and two differential lines for Receiver. Clocking information is embedded into the data stream.
x1, x2, x4, x8, x16
x1 refers to one PCI Express Lane of basic bandwidth; x2 to a collection of two PCI Express Lanes; etc.. Also referred to as x1, x2, x4,
x8, or x16 link.
eMMC
Embedded MultiMediaCard
SD card
Secure Digital card is a non-volatile memory card format developed for use in portable devices.
USB
Universal Serial Bus
SATA
Serial AT Attachment: serial-interface standard for hard disks
HDA
High Definition Audio
DDI
Digital Display Interface. DDI can operate as DisplayPort, HDMI or DVI.
DP
DisplayPort is a VESA open digital communications interface.
HDMI
High Definition Multimedia Interface. HDMI supports standard, enhanced, or high-definition video, plus multi-channel digital audio
on a single cable.
TMDS
Transition Minimized Differential Signaling. TMDS is a signaling interface defined by Silicon Image that is used for DVI and HDMI.
DVI
Digital Visual Interface is a video interface standard developed by the Digital Display Working Group (DDWG).
LPC
Low Pin-Count is a low speed interface used for peripheral circuits such as Super I/O controllers, which typically combine legacy
device support into a single IC.
I²C Bus
Inter-Integrated Circuit Bus is a simple two-wire bus with a software-defined protocol that was developed to provide the
communications link between integrated circuits in a system.
SM Bus
System Management Bus is a popular derivative of the I²C-bus.
SPI Bus
Serial Peripheral Interface is a synchronous serial data link standard that operates in full duplex mode.
GbE
Gigabit Ethernet
LVDS
Low-Voltage Differential Signaling
DDC
Display Data Channel is an I²C bus interface between a display and a graphics adapter.
N.C.
Not connected
N.A.
Not available
T.B.D.
To be determined
