Terms and Definitions¶
Bluetooth Low Energy Terms and Acronyms¶
- Anchor Point¶
In Bluetooth Low Energy, it means the start of a connection event.
- API¶
- Application-program interface¶
Refers to the function call.
- BLE¶
- Bluetooth Low Energy¶
Wireless protocol.
- BR¶
- Basic Rate¶
Transmitter characterstic supported by Bluetooth.
- BR/EDR¶
- Basic Rate/Enhanced Data Rate¶
Transmitter characterstic supported by Bluetooth.
- CCCD¶
- Client Characteristic Configuration Descriptor¶
An optional characteristic descriptor that defines how the characteristic may be configured by a specific client.
- CSRK¶
- Connection Signature Resolving Key¶
A key exchanged during Phase 3 of the bonding process. It is a 128-bit key used to sign data and verify signatures on the receiving device.
- Device Address¶
A 48-bit value used to identify a device. A device address can be public, random static, or random private.
- FEC¶
- Forward Error Correction¶
Error correction used to improve the sensitivity in the LE Coded PHY.
- FAL (formerly WL)¶
- Filter Accept List¶
Formerly White List. A filter policy in the Controller’s Link Layer that can prevent unwanted link layer events from waking up the host.
- GAP¶
- Generic Access Profile¶
Defines how each different Bluetooth Low Energy states should be accessed.
- GFSK¶
- Gaussian Frequency-Shift Keying¶
A type of FSK modulation which uses a Gaussian filter to shape the pulses before they are modulated.
- HCI¶
- Host Controller Interface¶
A transport layer between host and the controller, here we refer typically UART.
- IA¶
- Identity Address¶
A Resolvable Private Address that is resolvable with an Identity Resolving Key yields an Identity Address.
- IRK¶
- Identity Resolving Key¶
A key exchanged during Phase 3 of the bonding process. A Resolving List contains a local and a peer Identity Resolving Key as well as an Identity Address.
- ISM¶
- Industrial, Scientific, and Medical,¶
Here we often refer it to ISM radio band which means the radio spectrum reserved for industrial, scientific and medical applications.
- L2CAP¶
- Link Logical Control and Adaption Protocol¶
The protocol defines how packet segmentaion, reassembly and multiplexing.
- LE¶
- Low Energy¶
Bluetooth Low Energy.
- Link Budget¶
The link budget is the ratio between the Tx power and the Rx sensitivity level.
- LL¶
- Link Layer¶
A Bluetooth Low Energy stack layer in on the controller side.
- LTK¶
- Long Term Key¶
A term defined by the Bluetooth Core Specification Version 5.1 referring to the key used for encypted connections.
- MD¶
- More data¶
A bit field in Bluetooth Low Energy which indicates there are more data coming in during specific connection event.
- Multi-path fading¶
When the radio signal is not only received via the direct path, but also via reflections off nearby objects. The direct and reflected paths may interfere constructively or destructively
- PHY¶
- Physical layer¶
The physical layer is the lowest layer of the Bluetooth protocol stack. It configures the physical parameters of the radio transmission and reception. It determines how a bit (and its value) are represented over the air.
- PDU¶
- Protocol Data Unit¶
A packet or message.
- RL¶
- Resolving List¶
A Link Layer maintained table of one or more entries of a local and peer Identity Resolving Key associated to an Identity Address.
- RPA¶
- Resolvable Private Address¶
A resolvable address is one that can be resolved given that the device has an Identity Resolving Key. By resolving a Resolvable Private Address one can determine its Identity Address.
- RPAO¶
- Resolvable Private Address Only¶
A required GATT characteristic called “Resolvable Private Address Only” that is used with Network Privacy Mode.
- RSSI¶
- Received Signal Strength Indicator¶
It is a measurement of the power present in a received radio signal.
- SCA¶
- Sleep Clock Accuracy¶
Sleep clock accuracy determines the average timing of the BLE activities, which should drift less than or equal to +/-500ppm.
- SNV¶
- Simple Non-Volatile storage¶
An abstraction layer used by the BLE-Stack for reading and writing to non volatile memory. The GAPBondMgr layer of stack uses SNV to store keys. This region can also be used by the user.
- SPSM¶
- Simplified Protocol/Service Multiplexer¶
The SPSM field is two octets in length. SPSM values are separated into two ranges. Values in the first range are assigned by the Bluetooth SIG and indicate protocols. Values in the second range are dynamically allocated and used in conjunction with services defined in the GATT server.
General Terms and Acronyms¶
- AP¶
- Application Processor¶
An processor that implements the customer application as well the serial command interface to communicate with a network processor.
- BIM¶
- Boot Image Manager¶
A bootloader that runs after the device’s ROM startup code. The BIM is responsible for analyzing the image header of all images and determining the most suitable image to run. Once the BIM has found the proper image, it will jump to it’s program entry.
- .bss¶
Block started by symbol. This memory section usually contains uninitialized variables including the task stacks.
- CCA¶
- CCFG¶
- Customer Configuration¶
Customer Configuration is set by the application and contains configuration parameters for the ROM boot code, device hardware, and device firmware. It contains lock-bits on the last page of flash. You can read more in the Customer Configuration section in the CC13x0 CC26x0 SimpleLink Wireless MCU Technical Reference Manual.
- CCS¶
- Code Composer Studio¶
An integrated development environment to develop applications for Texas Instruments embedded processors. Download: Code Composer Studio
- cJTAG¶
- compact JTAG¶
Class 4 IEEE 1149.7: Standard for Reduced-pin and Enhanced-functionality Test Access Port and Boundary-scan Architecture. This is known by acronym cJTAG.
- GCC¶
- GNU Compiler Collection¶
A compiler system produced by the GNU Project, which support various programming languages such as C and C++.
- GPRAM¶
- General purpose RAM¶
This memory area is used for the cache per default, but can be configured to be used as RAM.
- HIB¶
- Halt In Boot¶
A mechanism in CC2640R2 to ensure that the external emulator can take control of the device before it executes any application code.
- IAR¶
Refers to IAR Systems’ IAR Embedded Workbench, which is an integrated development environment used for building and debugging embedded applications.
- JTAG¶
- Joint Test Action Group¶
IEEE standard 1149.1: Standard Test Access Port and Boundary Scan Architecture Test Access Port (TAP). This standard is known by the acronym JTAG.
- MCU¶
- Microcontroller Unit¶
A small computer on a single integrated circuit.
- NP¶
- Network Processor¶
A device that contains the wireless protocol stack as well as RF hardware. Stack functionality is exposed via a serial interface.
- NVS¶
- Non-Volatile Storage¶
Storage of data in non-volatile memory (NVM). NVM retains saved data during power cycles. In the context of CC2640R2 devices, NVM either refers to the internal flash or some external flash.
- OAD¶
- Over-the-Air Download¶
The process of performing a device firmware update over the air.
- RCFG¶
TI-RTOS in ROM Configuration Table
- ROM¶
- Read-only Memory¶
Type of non-volatile memory used in computers. Once data is written to ROM, the data cannot be removed and can only be read.
- RTSC¶
- Real Time Software Components¶
A toolset for creating reusable code, used by TI-RTOS. See RTSC and RTSC-Pedia.
- SNV¶
- Simple Non Volatile¶
An abstraction layer used by the BLE-Stack for reading and writing to non volatile memory. This region can also be used by the user.
- SNP¶
- Simple Network Processor¶
A BLE network processor implementation that supports the peripheral and broadcaster GAP Roles.
- SysConfig¶
- System Configuration Tool¶
SysConfig is a graphical interface for configuring software projects. Configuration files, C source files and header files are generated based on the parameters configured in the SysConfig dashboard. SysConfig is not supported on the CC2640R2.
- TI-CGT¶
- TI Code Generation Tools¶
Set of C/C++ Compilers and Assembly Language tools for many TI microcontrollers and processors. For more information, see TI Code Generation Tools.
- UNPI¶
- Unified Network Processor Interface¶
A standardized serial transport format that is implemented by TI for the purposes of interfacing to network processor devices like the SNP. UNPI also manages the handshaking required for the serial interface.
- VIMS¶
Versatile Instruction Memory System. A system control module that handles access to the device memory areas from the CPU and system bus. You can read more in the CC13x0 CC26x0 SimpleLink Wireless MCU Technical Reference Manual.
TI-RTOS Terms and Acronyms¶
- HWI¶
- Hardware Interrupts¶
A TI-RTOS hardware interrupt.
- Idle Task¶
A TI-RTOS default task that is executes when no other higher priority thread needs to run.
- RCFG¶
- ROV¶
- Runtime Object View¶
A TI-RTOS kernel plugin for CCS and IAR to view a target’s instrumentation data.
- RTC¶
- Real-Time Clock¶
An accurate computer clock which keeps track of the current time.
- RTOS¶
- Real Time Operating System¶
An operating system intended to serve applications with real-time requirements.
- SWI¶
- Software Interrupts¶
A TI-RTOS software interrupt.
- TI-RTOS¶
- Texas Instruments Real Time Operating System¶
An RTOS developed by TI for TI microcontrollers.
- Zero-Latency Interrupts¶
An interrupt that will not be routed through the TI-RTOS kernel’s Hwi dispatcher. For more information, see the Hwi module documentation in the TI-RTOS Kernel (SYS/BIOS) User’s Guide.
Over-the-Air Download (OAD) Terms and Acronyms¶
- BIM¶
- Boot Image Manager¶
A bootloader that runs after the device’s ROM startup code. The BIM is responsible for analyzing the image header of all images and determining the most suitable image to run. Once the BIM has found the proper image, it will jump to it’s program entry.
- CRC¶
- Cyclic Redundancy Check¶
An error-detecting code used to check the integrity of blocks of data.
- ECDSA¶
- Elliptic Curve Digital Signature Algorithm¶
A variant of the Digital Signature Algorithm (DSA) which uses elliptic curve cryptography.
- Factory Image¶
The factory image is a “golden” image that resides in external flash as a fail-safe mechanism.
- HIB¶
- Halt In Boot¶
A mechanism in CC2640R2 to ensure that the external emulator can take control of the device before it executes any application code.
- OAD¶
- Over-the-Air Download¶
The process of performing a device firmware update over the air.
- OAD Target¶
The device whose firmware is being upgraded over the air. This is assumed to be a CC26xx or CC13xx device running the TI protocol-specific transport for OAD.
- OAD Distributor¶
The device responsible for accepting an OAD enabled image from the compiler and transferring it over the air to the OAD Target.
Secure Firmware (SFW) Terms and Acronyms¶
- SFW¶
- Secure Firmware¶
The process of verifying an image before running for improved integrity and security
- SFB¶
- Secure Firmware Bootloader¶
The bootloader that verifies the secure firmware image
- SFI¶
- Secure Firmware Image¶
The application image that needs to be verified
- ECC¶
Elliptic Curve Cryptography
- SHA¶
Secure Hash Algorithm
- AES CBC MAC¶
Advanced Encryption Standard Cipher Block Chaining Message Authentication Code
- TLV¶
Type Length Value
Sensor Controller Terms and Acronyms¶
- SC¶
- Sensor Controller¶
A dedicated 16-bit CPU core on CC13xx and CC26xx devices, located in the auxiliary (AUX) power/clock domain. It can perform simple background tasks autonomously and independently of the System CPU and the MCU domain power states.
- SCS¶
- Sensor Controller Studio¶
A stand-alone IDE used to write, test and debug code for the Sensor Controller.
NPI Terms and Acronyms¶
- AIND¶
- Asynchronous Indication¶
An asynchronously received NPI message sent from the network processor to the host / application processor.
- AP¶
- Application Processor¶
An processor that implements the customer application as well the serial command interface to communicate with a network processor.
- AREQ¶
- Asynchronous Request¶
An asynchronously received NPI message sent from the host / application processor to the network processor.
- FCS¶
- Frame Check Sequence¶
An error-detecting code added to a frame
- NP¶
- Network Processor¶
A device that contains the wireless protocol stack as well as RF hardware. Stack functionality is exposed via a serial interface.
- NPI¶
- Network Processor Interface¶
Abstraction level above serial interface for sending / receiving data power management, and data parsing
- MRDY¶
- Master Ready¶
GPIO pin that indicates the state of the master
- SOF¶
- Start of Frame¶
A specific known byte specifying the beginning of a frame
- SRDY¶
- Slave Ready¶
GPIO pin that indicates the state of the slave
- SREQ¶
- Synchronous Request¶
A blocking NPI request that expects an ((SRESP))
- SRESP¶
- Synchronous Response¶
A response to a ((SREQ))
- UNPI¶
- Unified ((NPI))¶
NPI usage except for with HostTest