Terms and Definitions

Bluetooth Low Energy Terms and Acronyms

Application-program interface
API
Refers to the function call.
BLE
Bluetooth Low Energy
BR
Basic Rate
BR/EDR
Basic Rate/Enhanced Data Rate
CCCD
Client Characteristic Configuration Descriptor
Coding Indication
CI
Bit field in every BLE packet sent on LE Coded PHY that indicates the coding of the PDU (S=2 or S=8).
Device Address
A 48-bit value used to identify a device. A device address can be public, random static, or random private.
Forward Error Correction
FEC
Error correction used to improve the sensitivity in the LE Coded PHY.
GAP
Generic Access Protocol
GFSK
Gaussian Frequency-Shift Keying
HCI
Host Control Interface
Identity Address
IA
A Resolvable Private Address that is resolvable with an Identity Resolving Key yields an Identity Address.
Identity Resolving Key
IRK
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
L2CAP
Link Logical Control and Adaption Protocol
LE
Low Energy
The link budget is the ratio between the Tx power and the Rx sensitivity level.
LL
A Bluetooth low energy stack layer in on the controller side.
LTK
Long Term Key
A term defined by the Bluetooth Core Specification Version 5.0 referring to the key used for encypted connections.
Physical layer
PHY
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
Resolving List
RL
A Link Layer maintained table of one or more entries of a local and peer Identity Resolving Key associated to an Identity Address.
Resolvable Private Address
RPA
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.
Resolvable Private Address Only
RPAO
A required GATT characteristic called “Resolvable Private Address Only” that is used with Network Privacy Mode.
Simple Non-Volatile storage
SNV
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.
White List
WL
A filter policy in the Controller’s Link Layer that can prevent unwanted link layer events from waking up the host.

General Terms and Acronyms

Customer Configuration
CCFG
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 CC26x2 Technical Reference Manual.
Code Composer Studio
CCS
An integrated development environment to develop applications for Texas Instruments embedded processors
cJTAG
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 (compact JTAG).
IAR
Refers to IAR Systems’ IAR Embedded Workbench, which is an integrated development environment used for building and debugging embedded applications.
JTAG
IEEE standard 1149.1: Standard Test Access Port and Boundary Scan Architecture Test Access Port (TAP). This standard is known by the acronym JTAG (Joint Test Action Group).
MCU
Microcontroller Unit
OAD
Over the Air Download
RTSC
Real Time Software Components. A toolset for creating reusable code, used by TI-RTOS.
ROM
Read-only Memory
Simple Network Processor
SNP
A BLE network processor implementation that supports the peripheral and broadcaster GAP Roles.
Application Processor
AP
The host MCU that implements the user application. Connected to a network processor via a serial interface such as NPI
Unified Network Processor Interface
UNPI
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.
Real Time Software Components
RTSC
See RTSC and RTSC-Pedia.
Versatile Instruction Memory System
VIMS
A system control module that handles access to the device memory areas from the CPU and system bus. You can read more in the CC26x2 Technical Reference Manual.

TI-RTOS Terms and Acronyms

Hwi
A TI-RTOS Hardware interrupt.
Idle Task
A TI-RTOS default task that is executes when no other higher priority thread needs to run.
ROV
Runtime Object View
A TI-RTOS kernel plugin for CCS and IAR to view a target’s instrumentation data.
RTC
Real-time Clock
RTSC
Real Time Software Componenets. A toolset for creating reusable code, used by TI-RTOS.
Swi
A TI-RTOS Software interrupt.
TI-RTOS
Texas Instruments Real Time Operating System
Zero-Latency Interrupts
An interrupt that will not be routed through the TI-RTOS kernel’s Hwi dispatcher. For more information, see this wiki article.

Sensor Controller Terms and Acronyms

SC
Sensor Controller
SCS
Sensor Controller Studio

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 determing the most suitable image to run. Once the BIM has found the proper image, it will jump to it’s program entry.
Factory Image
The factory image is a “golden” image that resides in external flash as a failsafe mechanism.
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 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.