Experimental API: Feature flag to enable Mbed OS experimental API features, including driver virtual base classes and PSA.
Arm Platform Security Architecture (PSA): Feature representing support for the Arm PSA Root of Trust peripheral. This provides a secure storage environment, cryptography acceleration, secure boot and updates, and more.
Peripheral Drivers Supported
GPIO Port I/O: Driver for using an entire GPIO port as a bidirectional I/O port.
Async I2C Controller/Master: Driver allowing I2C controller mode to be used in the background via interrupts and/or DMA.
Serial (UART): Support for buffered and unbuffered serial (UART) ports
Low-Precision Ticker: Also known as the Low-Power Ticker, this peripheral keeps time at a low-frequency clock (usually 32kHz) and generates events for the application. Usually it is used to implement low power sleep.
Serial RTS/CTS Flow Control: Serial (UART) peripheral supports using RTS and/or CTS pins for hardware flow control.
USB Device: USB Device peripheral. Allows the Mbed target to act as a USB device when connected to a host computer.
True Random Number Generator: Cryptographic-grade True Random Number Generator (TRNG). This is required to implement SSL communications securely unless you provision devices with an entropy seed stored in nonvolatile storage.