nRF52840 DK v1.0.0


The glossary contains terms and acronyms that are used in this document.

Clear to Send (CTS)

In flow control, the receiving end is ready and telling the far end to start sending.


Data Terminal Ready (DTR)

A control signal in RS-232 serial communications transmitted from data terminal equipment, such as a computer, to data communications equipment.


Development Kit (DK)

A development platform used for application development.


Hardware Flow Control (HWFC)

A handshaking mechanism used to prevent an overflow of bytes in modems. It is utilizing two dedicated pins on the RS-232 connector, Request to Send and Clear to Send.


Integrated Development Environment (IDE)

A software application that provides facilities for software development.


Mass Storage Device (MSD)

Any storage device that makes it possible to store and port large amounts of data in a permanent and machine-readable fashion.


Near Field Communication (NFC)

A standards-based short-range wireless connectivity technology that enables two electronic devices to establish communication by bringing them close to each other.


NFC-A Listen Mode

Initial mode of an NFC Forum Device when it does not generate a carrier. The device listens for the remote field of another device. See Near Field Communication (NFC).

Operational Amplifier (op-amp)

A high-gain voltage amplifier that has a differential input and, usually, a single output.


Receive Data (RXD)

A signal line in a serial interface that receives data from another device.


Request to Send (RTS)

In flow control, the transmitting end is ready and requesting the far end for a permission to transfer data.


Root Mean Square (RMS)

An RMS meter calculates the equivalent direct current (DC) value of an alternating current (AC) waveform. A true-RMS meter can accurately measure both pure waves and the more complex nonsinusoidal waves.


SubMiniature Version A (SMA) Connector

A semi-precision coaxial RF connector for coaxial cables with a screw-type coupling mechanism.


System on Chip (SoC)

A microchip that integrates all the necessary electronic circuits and components of a computer or other electronic systems on a single integrated circuit.


Transmit Data (TXD)

A signal line in a serial interface that transmits data to another device.


Universal Asynchronous Receiver/Transmitter (UART)

A hardware device for asynchronous serial communication between devices.