８
Term
Description
Basic Module
COM Express 125mm x 95mm Module form factor.
BIOS
Basic Input Output System – firmware in PC-AT system that is used to
initialize system components before
handing control over to the operating system.
BMC
Baseboard Management Controller
CAN
Controller-area network (CAN or CAN-bus) is a vehicle bus standard
designed to allow microcontrollers to
communicate with each other within a vehicle without a host computer.
Carrier Board
An application specific circuit board that accepts a COM Express Module.
Compact Module
COM Express 95x95 Module form factor
DIMM
Dual In-line Memory Module
DRAM
Dynamic Random Access Memory
EAPI
Embedded Application Programming Interface
Software interface for COM Express specific industrial functions
• System information
• Watchdog timer
• I2C Bus
• Flat Panel brightness control
• User storage area
• GPIO
EEPROM
Electrically Erasable Programmable Read-Only Memory
eSPI
Enhanced Serial Peripheral Interface
Extended Module
COM Express 155mm x 110mm Module form factor.
FR4
A type of fiber-glass laminate commonly used for printed circuit boards.
Gb
Gigabit
GBE
Gigabit Ethernet
GPI
General Purpose Input
GPIO
General Purpose Input Output
GPO
General Purpose Output
I2C
Inter Integrated Circuit – 2 wire (clock and data) signaling scheme allowing
communication between integrated circuits, primarily used to read and load
register values.
LAN
Local Area Network
Legacy Device
Relics from the PC-AT computer that are not in use in contemporary PC
systems: primarily the ISA bus, UART-based serial ports, parallel printer
ports, PS-2 keyboards, and mice. Definitions vary as to what constitutes a
legacy device. Some definitions include IDE as a legacy device.
