What is a Pinmux?

What is a Pinmux?

PINMUX, also known as padmux, ballmux, alternate functions or mission modes is a way for chip vendors producing some kind of electrical packages to use a certain physical pin (ball, pad, finger, etc) for multiple mutually exclusive functions, depending on the application.

What is meant by pin configuration?

Configuration pins are used to load the design data into SRAM-based FPGAs. The bitstream defines the functional operation of the internal resources, interconnections and I/O for the FPGA. The configuration mode selected to program the FPGA is an important design factor to consider when assigning pins.

What is a Pin Mux?

The i.MX System-On-Chip has a lot of functionality but a limited number of pins (or pads). Even though a single pin can only perform one function at a time, they can be configured internally to perform different functions. This is called pin multiplexing.

What is GPIO Muxing?

A number of the available pins can be used for multiple purposes other than general purpose input/output when needed. Such pins are referred to as multiplexed pins. For example, the UART pins are designated as UART, but are multiplexed so that you can designate and use them as GPIO pins when you want.

What is Pinctrl single?

Required properties: – compatible : “pinctrl-single” or “pinconf-single”. “pinctrl-single” means that pinconf isn’t supported. “pinconf-single” means that generic pinconf is supported. –

What is Pinctrl driver?

The pinctrl subsystem provides: Pin multiplexing, which allows for reusing the same pin for different purposes, such as one pin being a UART TX pin, GPIO line, or HSI data line. Multiplexing can affect groups of pins or individual pins.

What is a wire pinout?

“Pinout” is a term describing how an electrical cable is wired. Some cables do not have pinouts because they only contain a single internal wire, like coax cables. But if a cable has multiple pins on the end of the cable, it will have a pinout. Pinouts also come into play when using a cable with two different ends.

What is multiplexing explain in detail?

Multiplexing is the technology that is able to combine multiple communication signals together in order for them to traverse an otherwise single signal communication medium simultaneously. Multiplexing can be applied to both analog and digital signals.

What is device tree in Linux kernel?

A device tree (DT) is a data structure of named nodes and properties that describe non-discoverable hardware. Operating systems, such as the Linux kernel used in Android, use DTs to support a wide range of hardware configurations used by Android-powered devices.