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User's Manual l MBa57xx UM 0100 l © 2020, TQ-Systems GmbH
Page 55
Acronyms and definitions (continued)
Acronyms (continued)
Acronym
Meaning
NA
Not Applicable
NC
Not Connected
NOR
Not-Or
NP
Not Placed
OTG
On-The-Go
PCB
Printed Circuit Board
PCIe
Peripheral Component Interconnect Express
PCMCIA
People Can't Memorize Computer Industry Acronyms
PD
Pull-Down
PHY
Physical (Interface)
PMIC
Power Management Integrated Circuit
PU
Pull-Up
PWM
Pulse-Width Modulation
QSPI
Quad Serial Peripheral Interface
REACH
®
Registration, Evaluation, Authorisation (and restriction of) Chemicals
RGB
Red Green Blue
RGMII
Reduced Gigabit Media Independent Interface
RJ45
Registered Jack 45
RMII
Reduced Media-Independent Interface
RoHS
Restriction of (the use of certain) Hazardous Substances
RS-232, RS-485
Recommended Standard (serial interface)
RTC
Real-Time Clock
SAI
Serial Audio Interface
SATA
Serial ATA
SD
Secure Digital
SDHC
Secure Digital High Capacity
SIM
Subscriber Identity Module
SPI
Serial Peripheral Interface
SVHC
Substances of Very High Concern
UART
Universal Asynchronous Receiver and Transmitter
UHS
Ultra High-Speed (Speed Grades I, II, III)
UM
User's Manual
UN
United Nations
USB
Universal Serial Bus
WEEE
®
Waste Electrical and Electronic Equipment
WLAN
Wireless Local Area Network
WP
Write-Protection
WPAN
Wireless Personal Area Network
WWAN
Wireless Wide Area Network