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# SPDX-License-Identifier: Apache-2.0
description: Atmel SAM Timer Counter (TC) node
compatible: "atmel,sam-tc"
include:
- name: base.yaml
- name: pinctrl-device.yaml
properties:
reg:
required: true
interrupts:
required: true
peripheral-id:
type: array
description: peripheral ID
required: true
channel:
type: int
description: |
Timer / Counter channel to use, channel 0 is the default.
Valid range: 0 - 2
clk:
type: int
description: |
Clock source selection as defined by TCCLKS bit-field of TC_CMR
register. Consult the datasheet for the details.
nodivclk:
type: boolean
description: |
If set to true the `clk` property is ignored. Instead the TC module is
driven directly via MCLK. Only supported on sam4e, same70, same70b,
samv71, samv71b SoC series.
reg-cmr:
type: int
description: |
Alternate value of the CMR (Channel Mode Register) register.
If specified this value will be written to the register during driver
instance initialization instead of the default. It can be used to
configure the timer / counter in the custom mode. Together with other
properties like channel-num, pinctrl-0 this allows e.g. to configure
the driver to count events generated on the TIOA, TIOB signal connected
to the external pin.
reg-rc:
type: int
description: |
Register C compare/match value. RC can be used as compare/match unit
for an specific timer unit. Their use depends on how timer channel
is configured,see reg-cmr. It can be used as trigger for both input
capture or counter mode, or even as event source. The RC register
behavior is SoC dependent. For more information and use cases,
check SoC datasheet and application notes.