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1 A[edit source]
- A2DP
- Advanced Audio Distribution Profile
- ABI
- Application binary interface
In computer software, an application binary interface (ABI) describes the low-level interface between a computer program and the operating system or another program.
- ACL
- Automatic current limit (LCD power improvement solution)
- ADB
- Android debug bridge (Android specific)
- ADC
- Analog-to-digital converter. The process of converting a sampled analog signal to a digital code that represents the amplitude of the original signal sample.
- AES
- Advanced Encryption Standard
- AF
- GPIO alternate function - NEW
- AHB
- Advanced High-performance Bus - NEW
- aka:also known as - NEW
- ALSA
- Advanced Linux sound architecture - NEW
- AOSP
- Android Open Source Project
- APB
- Advanced Peripheral Bus - NEW
- API
- Application programming interface
- Arm ®
- https://www.arm.com/ (see https://www.arm.com/company/policies/trademarks/arm-trademark-list/cortex-trademark )- NEW
- ASoC
- ALSA System on Chip - NEW
- AVB
- Audio Video Bridging over Ethernet (set of IEEE standards for transporting audio and other real-time content over Ethernet)
- AVD
- Analog Voltage Detector
2 B[edit source]
- BSP
- Board support package
- BL1
- Boot Loader stage 1
- BL2
- Boot Loader stage 2
- BL32
- Boot Loader stage 3-2
- BL33
- Boot Loader stage 3-3
- BLE
- Bluetooth Low Energy
Bluetooth Low Energy (Bluetooth LE, BLE, marketed as Bluetooth Smart) is a wireless personal area network technology designed and marketed by the Bluetooth Special Interest Group aimed at novel applications in the healthcare, fitness, beacons, security, and home entertainment industries. Compared to Classic Bluetooth, Bluetooth Smart is intended to provide considerably reduced power consumption and cost while maintaining a similar communication range. (sourcehttps://en.wikipedia.org/wiki/Bluetooth_Low_Energy)
- BoardId
- eval - NEW
Generic term used only for Android, to complete configuration modules paths depending on used board
- BOR
- Brownout reset
- BSEC
- Boot and Security and OTP control - NEW
- BT
- BlueTooth
3 C[edit source]
- CABC
- Content-Adaptative Backlight Control (LCD power improvement solution)
- CAB
- Content-Adaptative Backlight (LCD power improvement solution)
- CEC
- Consumer Electronics Control (HDMI standard)
- CLUT
- Colour Look-Up Table
- CMSIS
- Cortex Microcontroller Software Interface Standard - NEW
- configfs
- Configuration File System (See https://en.wikipedia.org/wiki/Configfs for more details) - NEW
- Cortex ®
- NEW
- CPL
- Common Public License - NEW
- CPU
- Central processing unit
- CRC
- Cyclic redundancy check calculation unit
- CRYP
- Cryptographic processor
- CSG
- Constructive Solid Geometry
- CSS
- Cascading Style Sheets (web standard)
- CTS
- Compatibility Test Suite (Android specific)
4 D[edit source]
- DAC
- Digital-to-analog converter
Electronic circuit that converts abinary number into a continuously varying value.
- DAI
- Digital Audio Interface - NEW
- DAPM
- Dynamic Audio Power Management
- DBI
- Display Bus Interface (Mipi standard)
- DCMI
- Digital Camera Memory Interface - NEW
- DDB
- Device Descriptor Block (Mipi standard)
- DDC
- Display Data Channel (VESA standard)
- DDR
- Doubledata rate (memory domain)
- debugfs
- Debug File System (See https://en.wikipedia.org/wiki/Debugfs for more details) - NEW
- devfs
- Device File System (See https://en.wikipedia.org/wiki/Device_file#DEVFS for more details) - NEW
- DES
- Data Encryption Standard
- DFSDM
- Digital Filter for Sigma-Delta Modulator
- DFU
- Device Firmware Upgrade
- DISCO
- Discovery board - NEW
- DMA
- Direct Memory Access
- DMA2D
- Chrom-Art Accelerator™ controller (STM32 specific)
- DMIC
- Digital microphone - NEW
- DPI
- Display Pixel Interface (Mipi standard)
- DRD
- Dual-Role Device - NEW
USB standard defines host and device roles. OTG controllers support both roles and can be called Dual-Role Devices controllers.
- DRI
- Direct Rendering Infrastructure (Linux framework for allowing direct access to graphics hardware... find more information on official DRI web site http://dri.freedesktop.org/wiki/FrontPage)
- DRM
- Direct Rendering Manager
(kernel module that gives direct hardware access to DRI clients, find more information on official DRI web site http://dri.freedesktop.org/wiki/DRM)
- DRP
- NEW Dual Role Port, an USB port that can operate in host or device mode
- DSI
- Display Serial Interface (MIPI(R) standard)
- DT
- Device Tree
- DTS
- Device Tree Source (in software context) or Digital Temperature Sensor (in peripheral context)- NEW
- DTB
- Device Tree Binary (or Blob)
- DVI
- Digital Visual Interface (Digital Display Working Group)
5 E[edit source]
- EAL
- Evaluation Assurance Level - NEW
- ECC
- Error Correction Capability - NEW
- ECC
- Elliptic curve cryptography - NEW
- ECDSA
- Elliptic Curve Digital Signature Algorithm
- EDID
- Extended Display Identification Data (HDMI standard)
- EDP
- Embedded Display Port (VESA standard). See http://www.displayport.org/ for more details
- EEPROM
- Electrically-erasable programmable read-only memory - NEW
- EGL
- Khronos Native Platform Graphics Interface (See http://www.khronos.org/egl/ for more details)
- EHCI
- Enhanced Host Controller Interface
- EMI
- External memory interface
- eMMC
- former spelling for e•MMC ('e' in italic) - NEW
- e•MMC
- Embedded Multi-Media Card - NEW
- EOT
- End Of Transmission (MIPI DSI standard)
- ETH
- Ethernet
- ETM
- Embedded Trace Macrocell- NEW
- ETZPC
- Extended TrustZone Protection Controller - NEW
- EXTI
- External Interrupt - NEW
- EVAL
- Evaluation board - NEW
6 F[edit source]
- FB
- Frame Buffer (could be the Kernel framebuffer linked to the display, a GPU framebuffer, an imaging framebuffer...)
- FHS
- File Hierarchy Standard defines by Linux Fundation
- Flash
- Flash memory shortened to gain space in titles, tables and block diagrams
- Flash memory
- Flash memories combine high density and cost effectiveness of EPROMs with the electrical erasability of EEPROMs. For this reason, the Flash memory market is one of the most exciting areas of the semiconductor industry today and new applications requiring in system reprogramming, such as cellular telephones, automotive engine management systems, hard disk drives, PC BIOS software for Plug & Play, digital TV, set top boxes, fax and other modems, PC cards and multimedia CD-ROMs, offer the prospect of very high volume demand.
- foo_driver
- foo_driver could be any driver that needs to control a GPIO - NEW
- FPS
- Frames per second
- FTR
- First Time Right
- FSBL
- First Stage Boot Loader
7 G[edit source]
- GDB
- GNU dedugger, a portable debugger that runs on many Unix-like systems
- GIC
- Generic Interrupt Controller - NEW
- GP
- Geometry Processor, used to execute Vertex Shaders (3D IP/IC specific).
- GPIO
- General-Purpose Input/Output
A realization of open ended transmission between devices on an embedded level. These pins available on a processor can be programmed to be used to either accept input or provide output to external devices depending on user desires and applications requirements.
- GRALLOC
- GRaphic ALLOCation HAL or library (Android specific)
- GPGPU
- General-Purpose computation on Graphics Processing Units
- GPT
- GUID Partition Table
- GPU
- Graphics Processing Units
- GUI
- Graphical User Interface
8 H[edit source]
- HAL
- Hardware Abstraction Layer
- HDCP
- High-Bandwidth Digital Content Protection (HDMI standard)
- HDMI
- High-Definition Multimedia Interface (HDMI standard)
- HDP
- Hardware Debug Port - NEW
- HDR
- High Dynamic Range (HDMI standard)
- HID
- Human Interface Device (for USB, Bluetooth...)
- HMAC
- Hash-based Message Authentication Code
- HPD
- Hot Plug Detect
- HS
- High Speed (MIPI DSI standard)
- HSI
- High Speed Internal oscillator (STM32 clock source) or High Speed Synchronous Serial Interface (MIPI standard)
- HSLV
- High Speed Low Voltage pin mode - NEW
9 I[edit source]
- I2C
- Inter-Integrated Circuit
Bi-directional 2-wire bus standard for efficient inter-IC control.
- I2S
- Integrated Interchip Sound
I2S (without the 2 in superscript) refers to the STMicroelectronics integrated interchip sound IP.
- IIC
- Inter-Integrated Circuit
Bi-directional 2-wire bus standard for efficient inter-IC control.
- IDE
- (Software)Integrated development/design/debugging environment
- IIC
- Inter Integrated Circuit
- IIO
- Industrial I/O Linux subsystem - NEW
- IFP
- Image Formatting Pipeline
- IO
- input/output - NEW
- IPC
- Inter-Processor Communication
- IPCC
- Inter-Processor Communication Controller
- IPP
- Image Preprocessor Pipeline
- ITM
- Instruction Trace Macrocell - NEW
- IWDG
- Independent Watchdog
- I420
- fourcc of YUV420 planar pixel format
10 J[edit source]
- JIT
- Just-In-Time (Way of working for a given Virtual Machine)
11 K[edit source]
- KMS
- Kernel Mode Setting
12 L[edit source]
- LDISC
- Line Discipline
- LED
- Light-emitting diode
- LIN
- Local Interconnect Network
- LDO
- Low-dropout regulator
- LL
- Low layer of STM32Cube - NEW
- LP
- Low Power (MIPI DSI standard)
- LTDC
- LCD TFT Display Controller (STM32 specific)
- LPTIM
- low-power timer (STM32 specific) - NEW
13 M[edit source]
- MD5
- Message Digest 5
- MIPI
- Mobile Industry Processor Interface, open membership organization that includes leading companies in the mobile industry that share the objective of defining and promoting open specifications for interfaces inside mobile terminals, see MIPI(R) Alliance web site https://www.mipi.org
- MCU Microcontroller Unit
MCUs have internal flash memory and are intended to operate with a minimum amount of external support ICs. They commonly are a self-contained, system-on-chip (SoC) designs.
- MFD
- Multifunction device - NEW
- MMC
- MultimediaCard - NEW
- MPU
- Microprocessor Unit
- MMU
- Memory Management Unit
A hardware device or circuit that supports virtual memory and paging by translating virtual addresses into physical addresses.
- MTD
- Memory Technology Device - NEW
- microSDTM;
- eg microSD card ('m' in lowcase whatever its position)
- Micro-USB
- eg Micro-USB connector ('M' in uppercase whatever its position)
- Micro-AB
- Micro-AB connector/port ('M' in uppercase whatever its position)
14 N[edit source]
- NA
- Non Applicable
- NDA
- Non-disclosure agreement
- NV12
- fourcc of YUV420 semi-planar pixel format
- NVM
- Non Volatile Memory, like a flash memory - NEW
15 O[edit source]
- OGL
- Open Graphics Library (See http://www.opengl.org/ for more details)
- OHCI
- Open Host Controller Interface
- ONFI
- Open NAND Flash interface
The ONFI working group, acronym for Open NAND Flash Interface, was founded in 2005. The group’s mission consists in creating a common industry standard for NAND Flash interfaces, to simplify integration of NAND Flash memory into consumer electronics (CE) devices and computing platforms. ST is one of the co-founder companies together with Hynix, Intel, Micron, Phison and Sony.
- OpenCL
- Open Computing Language (See http://www.opencl.org/ for more details)
- OpenGL
- Open Graphics Library (See http://www.opengl.org/ for more details)
- OpenGLES
- Open Graphics Library for Embedded System (See http://www.khronos.org/opengles/ for more details)
- OpenVG
- Open Vector Graphics (See http://www.khronos.org/openvg/ for more details)
- OPP
- Operating Performance Point (link to voltage and frequency scalings)
- OP-TEE
- Open Portable Trusted Execution Environment
- OS
- Operating System
- OSS
- Open Source Software
- OST
- Open System Trace
- OTG
- USB On-The-Go
Capability/type of USB port, acting primarily as USB device, to also act as USB host. Also known as USB OTG.
- OTP
- One Time Programmed
16 P[edit source]
- PCB
- Printed Circuit Board - NEW
- PLB
- Polygon List Builder (3D IP/IC specific)
- PMIC
- Power Management Integrated Circuit
- PMU
- Power Management Unit
- POSIX
- Portable Operating System Interface based on uniX (https://en.wikipedia.org/wiki/POSIX_terminal_interface for more details)
- POT
- Power Of Two (could be linked to Graphics, like in OpenGL textures)
- PP
- Pixel Processor, used to execute Fragment Shaders (3D IP/IC specific)
- procfs
- Process File System (See https://en.wikipedia.org/wiki/Procfs for more details) - NEW
- PVD
- Programmable Voltage Detector
- PWM
- Pulse Width Modulation - NEW
17 Q[edit source]
18 R[edit source]
- RAM
- Random Access Memory
Early computer memories generally hadserial access. Memories where any given address can be accessed when desired were then called "random access" to distinguish them from the memories where contents can only be accessed in a fixed order. The term is used today forvolatile random-accesssemiconductor memories.
- RCC
- Reset and Clock Control
- REGMAP
- Register map (Linux registers map abstraction API) - NEW
- RMA
- Return Materials Authorization - NEW
- RNG
- Random Number Generator
- ro
- Read Only
- ROM
- Read Only Memory - NEW
- RTC
- Real Time Clock - NEW
- RTOS
- Real Time Operating System
- RX
- Receive - NEW
19 S[edit source]
- SAI
- Serial Audio Interface
Mechanism used to transfer non-buffered audio data between processors and/or audio converters.
- SCL
- Serial Clock Line - NEW
- SD
- secure digital - NEW
- SDA
- Serial DAta line - NEW
- SDIO
- secure digital input/output
- SDK
- Software development kit
A programming package that enables a programmer to develop applications for a specific platform.
- Serdev
- Serial device bus - NEW
- SHA
- Secure Hash Algorithm
- SLC
- Single-Level Cell is a kind of NAND flash - NEW
- SocId
- stm32mp1, sti - NEW
Generic term used only for Android, to complete configuration modules paths depending on used STM32 microprocessor devices
- SOM
- System-On-Module
- SOT
- Start Of Transmission (MIPI DSI standard)
- S/PDIF
- Sony/Philips Digital Interface Format
Protocol (IEC-60958)
- SMC
- Secure Monitor Call
- SMBus
- System Management Bus -NEW
- SMP
- symmetric multiprocessing - NEW
- SP_min
- Secure Payload minimal
- SPI
- Serial Peripheral Interface
- SPL
- Also known as U-Boot SPL
- Secondary Program Loader - NEW
- SSBL
- Second Stage Boot Loader
- STGEN
- System Time Generator - NEW
- STM
- System Trace Module - NEW
- STP
- System Trace Protocol (MIPI standard specifying the protocol to carry above system traces)
- SSP
- Secure Secret Provisioning - NEW
- SYSCFG
- System Configuration - NEW
- sysfs
- System File System (See https://en.wikipedia.org/wiki/Sysfs for more details) - NEW
- SDIO
- Secure Digital Input Output - NEW
- SDIO card
- SDIO is an SD-size card with extended input/output functions
- SWD
- Serial Wire Debug - NEW
20 T[edit source]
- TA
- Trusted Application
- TAF
- Trusted Application Function
- TAMP
- Tamper
- TBG
- Test Byte Generator, part of DSI, used to generate - on CPU demand - a stream of byte to the DSI D-PHY. The goal is to perform basic DSI D-PHY lane check
- TCG
- Trusted Computing Group
- TCM
- Tightly Coupled Memory
- TDES
- Triple Data Encryption Standard
- TEE
- Trusted Execution Environment
- termios
- terminal input output structure
- TF-A
- Trusted Firmware for Arm Cortex-A
- TFTP
- Trivial File Transfer Protocol - NEW
- TPM
- Trusted Platform Module
- TrEQ
- Transducer Equalizer
- TSS
- TrouSerS
- TTY
- TeleTYpewriter
- TVG
- Test Video Generator, part of DSI, used to generate a video stream automatically (for verification and validation task)
- TX
- Transmit - NEW
- TZ
- Trust Zone
- TZC
- TrustZone address space Controller for DDR - NEW
21 U[edit source]
- UART
- Universal Asynchronous Receiver/Transmitter
- UDC
- USB Device Controller
- UI
- User Interface
- UMS
- User-space Mode Setting
- µClinux
- The letters "μC" are for "microcontroller", the name is pronounced "you-see-Linux" (http://www.uclinux.org/)
- UP
- uniprocessor - NEW
- USART
- Universal Synchronous/Asynchronous Receiver/Transmitter
- USBH
- USB Host (STM32 specific) - NEW
- USB Type-A
- USB port or connector
- USB Type-C
- USB port or connector
- UTMI
- USB 2.0 Transceiver Macrocell Interface
- USB On-The-Go
- Capability/type of USB port, acting primarily as USB device, to also act as USB host. Also known as USB OTG.
22 V[edit source]
- VESA
- Video Electronics Standards Association
- V4L2
- Video 4 Linux version 2
- VREFBUF
- voltage reference buffer (STM32 specific) - NEW
23 W[edit source]
- Wi-Fi
- technology for wireless local area networking with devices based on the IEEE 802.11 standards
24 X[edit source]
- XTI
- Protocol specifying a way to define OST frame boundary and to support trace activation using uart channel.
- XIP
- Execute In Place. Method of executing programs directly from long term storage rather than copying it into RAM (linked to NOR Flash).
25 Y[edit source]
- YAVTA
- Yet Another V4L2 Test Application (V4L2 standard)
26 Z[edit source]
27 0-9[edit source]
28 See Also[edit source]
Arm® is a registered trademark of Arm Limited (or its subsidiaries) in the US and/or elsewhere. 
Arm® is a registered trademark of Arm Limited (or its subsidiaries) in the US and/or elsewhere.