arduino-nano-header-r3

Description

GPIO pins exposed on Arduino Nano (R3) headers.

The Arduino Nano layout provides two headers on opposite edges of the board.

* A 15-pin header with mostly digital signals. The additional NRST (pin3)
  and GND (pin 4) pins are not exposed by this binding.
* A 15-pin Analog Input and power supply header. This has analog input
  signals labeled from A0 through A7, as well a digital signal D13. The
  power supply and reset pins are not exposed by this binding.

This binding provides a nexus mapping for 22 pins where parent pins 0
through 13 correspond to D0 through D13, and parent pins 14 through 21
correspond to A0 through A7, as depicted below.

    1  D1                   VIN    -
    0  D0                   GND    -
    -  RESET                RESET  -
    -  GND                  5V     -
    2  D2                   A7/D21 21
    3  D3                   A6/D20 20
    4  D4                   A5/D19 19
    5  D5                   A4/D18 18
    6  D6                   A3/D17 17
    7  D7                   A2/D16 16
    8  D8                   A1/D15 15
    9  D9                   A0/D14 14
    10 D10                  AREF   -
    11 D11                  3V3    -
    12 D12                  D13    13

Properties

Properties not inherited from the base binding file.

Name	Type	Details
`gpio-map`	`compound`	This property is required.
`gpio-map-mask`	`compound`
`gpio-map-pass-thru`	`compound`
`#gpio-cells`	`int`	Number of items to expect in a GPIO specifier This property is required.

Properties inherited from the base binding file, which defines common properties that may be set on many nodes. Not all of these may apply to the “arduino-nano-header-r3” compatible.

Name	Type	Details
`status`	`string`	indicates the operational status of a device Legal values: `'ok'`, `'okay'`, `'disabled'`, `'reserved'`, `'fail'`, `'fail-sss'` See Important properties for more information.
`compatible`	`string-array`	compatible strings This property is required. See Important properties for more information.
`reg`	`array`	register space See Important properties for more information.
`reg-names`	`string-array`	name of each register space
`interrupts`	`array`	interrupts for device See Important properties for more information.
`interrupts-extended`	`compound`	extended interrupt specifier for device
`interrupt-names`	`string-array`	name of each interrupt
`interrupt-parent`	`phandle`	phandle to interrupt controller node
`label`	`string`	Human readable string describing the device (used as device_get_binding() argument) See Important properties for more information.
`clocks`	`phandle-array`	Clock gate information
`clock-names`	`string-array`	name of each clock
`#address-cells`	`int`	number of address cells in reg property
`#size-cells`	`int`	number of size cells in reg property
`dmas`	`phandle-array`	DMA channels specifiers
`dma-names`	`string-array`	Provided names of DMA channel specifiers
`io-channels`	`phandle-array`	IO channels specifiers
`io-channel-names`	`string-array`	Provided names of IO channel specifiers
`mboxes`	`phandle-array`	mailbox / IPM channels specifiers
`mbox-names`	`string-array`	Provided names of mailbox / IPM channel specifiers
`wakeup-source`	`boolean`	Property to identify that a device can be used as wake up source. When this property is provided a specific flag is set into the device that tells the system that the device is capable of wake up the system. Wake up capable devices are disabled (interruptions will not wake up the system) by default but they can be enabled at runtime if necessary.
`power-domain`	`phandle`	Power domain the device belongs to. The device will be notified when the power domain it belongs to is either suspended or resumed.