ambiq-header

Vendor: Generic or vendor-independent

Description

GPIO pins exposed on Ambiq Apollo4p EVB headers

The Ambiq Apollo4p EVB layout provides 5x16 and 1x20 pin headers.

The binding provides a nexus mapping for these pins as depicted below.

        J7                              J12

VDD_MCU - VDD_MCU -             GPIO22 22 GND     -
VDD_EXT - VDD_EXT -             GPIO23 23 GPIO24 24
nRST    - GND     -             VDD_MCU - GND     -
VDD_EXT - VDD_EXT -             GND     - GPIO64 64
VDD_5V  - VDD_5V  -             GPIO61 61 GPIO65 65
GND     - GND     -             GPIO63 63 GPIO66 66
GND     - GPIO100 100           GPIO62 62 GPIO67 67
VDDH2   - GPIO97  97            GPIO47 47 GPIO68 68
                                GPIO49 49 GPIO69 69
        J9                      GPIO48 48 GPIO70 70

GPIO19 19 GPIO96  96                    J11
GPIO18 18 GPIO95  95
GPIO17 17 GPIO98  98            GPIO53 53 GPIO71 71
GPIO16 16 GPIO99  99            GPIO52 52 GPIO72 72
GPIO15 15 GPIO102 102           GPIO91 91 GPIO73 73
GPIO14 14 GPIO34  34            GPIO90 90 GPIO93 93
GPIO13 13 GPIO35  35            GPIO11 11 GPIO92 92
GPIO12 12 GPIO36  36            GPIO10 10 GPIO33 33
                                GPIO8  8  GPIO32 32
                                GPIO9  9  GPIO31 31

                                        J10

                                GPIO28 28 GPIO60 60
                                GPIO30 30 GPIO59 59
                                GPIO94 94 GPIO58 58
                                GPIO55 55 GPIO7  7
                                GPIO0  0  GPIO54 54
                                GPIO51 51 GPIO1  1
                                GPIO2  2  GPIO50 50
                                GPIO3  3  GPIO4  4

                                  Voltage Header

                                VDD_EXT - VDD_5V -
                                GND     - GND    -
                                BIAS    - BIAS   -
                                GND     - AUDA   -
                                GND     - GND    -
                                D1P     - DON    -
                                D1N     - DOP    -
                                GND     - GND    -

Properties

Node specific 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.

Deprecated node specific properties

Deprecated properties not inherited from the base binding file.

(None)

Base properties

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 “ambiq-header” 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. This property is deprecated.
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
power-domains	phandle-array	Power domain specifiers
power-domain-names	string-array	Provided names of power domain specifiers
#power-domain-cells	int	Number of cells in power-domains property
zephyr,deferred-init	boolean	Do not initialize device automatically on boot. Device should be manually initialized using device_init().
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.
zephyr,pm-device-runtime-auto	boolean	Automatically configure the device for runtime power management after the init function runs.
zephyr,disabling-power-states	phandles	List of power states that will disable this device power.