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renesas,smartbond-uart

Vendor: Renesas Electronics Corporation

Description

These nodes are “uart” bus nodes.

Renesas SmartBond(tm) UART

Properties

Properties not inherited from the base binding file.

Name

Type

Details

clock-frequency

int

Clock frequency information for UART operation

current-speed

int

Initial baud rate setting for UART. Only a fixed set of baud
rates are selectable on these devices.

Legal values: 4800, 9600, 14400, 19200, 28800, 38400, 57600, 115200, 230400, 500000, 921600, 1000000, 2000000

hw-flow-control

boolean

Set to enable RTS/CTS flow control at boot time

parity

string

Configures the parity of the adapter. Enumeration id 0 for none, 1 for odd
and 2 for even parity. Default to none if not specified.

Legal values: 'none', 'odd', 'even'

stop-bits

string

Sets the number of stop bits.

Legal values: '0_5', '1', '1_5', '2'

data-bits

int

Sets the number of data bits.

Legal values: 5, 6, 7, 8, 9

pinctrl-0

phandles

Pin configuration/s for the first state. Content is specific to the
selected pin controller driver implementation.

pinctrl-1

phandles

Pin configuration/s for the second state. See pinctrl-0.

pinctrl-2

phandles

Pin configuration/s for the third state. See pinctrl-0.

pinctrl-3

phandles

Pin configuration/s for the fourth state. See pinctrl-0.

pinctrl-4

phandles

Pin configuration/s for the fifth state. See pinctrl-0.

pinctrl-names

string-array

Names for the provided states. The number of names needs to match the
number of states.

periph-clock-config

int

Peripheral clock register configuration (COM domain)

This property is required.

hw-flow-control-supported

boolean

Set to indicate RTS/CTS flow control is supported.

rx-wake-gpios

phandle-array

GPIO configured as wake source

rx-wake-timeout

int

Time to prevent UART entering sleep mode after receiving data (ms)

dtr-gpios

phandle-array

DTR pin specification. DTR pin when active tells that the driver that there
is active client on the other side of serial line.
The device driver does not use DTR for hardware flow control.
When device is connected to computer serial converter usually asserts DTR
line when serial port is opened and ready for communication.
This line can be used in Smartbond(tm) driver to detect remote client presence.
If client is not present the device can disable UART, allowing for
power system management to enter more efficient power levels.