MAC

Reception scheduling and ramp up time needed for the CSL receiver to be ready, in units of microseconds.

The default CSL timeout in seconds.

Transmission scheduling and ramp up time needed for the CSL transmitter to be ready, in units of microseconds.

This time must include at least the radio's turnaround time between end of CCA and start of preamble transmission. To avoid early CSL transmission it also must not be configured higher than the actual scheduling and ramp up time.

Define as 1 to add random backoff delay in between frame transmission retries when the previous attempt resulted in no-ack error.

The Data Poll period during attach in milliseconds.

This setting configures if the beacon payload parsing needs to be enabled in MAC.

This is optional and is disabled by default because Thread 1.2.1 has removed support for beacon payloads.

Define to 1 to enable IEEE 802.15.4 Beacons when joining is enabled.

Define as 1 to enable collision avoidance delay feature, which adds a delay wait time after a successful frame tx to a neighbor which is expected to forward the frame.

This delay is applied before the next direct frame tx (towards any neighbor) on an FTD.

The delay interval is specified by OPENTHREAD_CONFIG_MAC_COLLISION_AVOIDANCE_DELAY_INTERVAL (in milliseconds).

Specifies the collision avoidance delay interval in milliseconds.

This is added after a successful frame tx to a neighbor that is expected to forward the frame (when OPENTHREAD_CONFIG_MAC_COLLISION_AVOIDANCE_DELAY_ENABLE is enabled).

This setting configures CSL auto synchronization based on data poll mechanism in Thread 1.2.

CSL receiver debug option.

When this option is enabled, a CSL receiver wouldn't actually sleep in CSL state so it can still receive packets from the CSL transmitter.

This setting configures the maximum CSL timeout that could be used, in units of seconds.

This setting configures the minimum CSL period that could be used, in units of milliseconds.

This setting configures the CSL receiver feature in Thread 1.2.

This setting configures the usage of local time rather than radio time for calculating the elapsed time since last CSL synchronization event in order to schedule the duration of the CSL receive window.

This is done at expense of too short or too long receive windows depending on the drift between the two clocks within the CSL timeout period. In order to compensate for a too short receive window, CSL uncertainty can be increased.

This setting can be useful for platforms in which is important to reduce the number of radio API calls, for instance when they are costly. One typical situation is a multicore chip architecture in which different instances of current time are being kept in host and radio cores. In this case, accessing the radio core current time API requires serialization and it is more costly than just accessing local host time.

Define how many microseconds ahead should MAC deliver CSL frame to SubMac.

Define to 1 to enable csl transmitter logic.

This setting specifies the timeout for receiving the Data Frame (in msec) - after an ACK with FP bit set was received.

The default maximum number of retries allowed after a transmission failure for direct transmissions.

Equivalent to macMaxFrameRetries, default value is 15.

The default maximum number of retries allowed after a transmission failure for indirect transmissions.

Equivalent to macMaxFrameRetries, default value is 0.

Define to 1 to enable MAC filter support.

The number of MAC Filter entries.

Define as 1 to support IEEE 802.15.4-2015 Header IE (Information Element) generation and parsing, it must be set to support following features:

1. Time synchronization service feature (i.e., OPENTHREAD_CONFIG_TIME_SYNC_ENABLE is set).
2. Thread 1.2.

The Beacon version to use when the beacon join flag is set.

The maximum number of backoffs the CSMA-CA algorithm will attempt before declaring a channel access failure.

Equivalent to macMaxCSMABackoffs in IEEE 802.15.4-2006, default value is 4.

The maximum number of backoffs the CSMA-CA algorithm will attempt before declaring a channel access failure.

Equivalent to macMaxCSMABackoffs in IEEE 802.15.4-2006, default value is 4.

Maximum number of received IEEE 802.15.4 Data Requests for a queued indirect transaction.

The indirect frame remains in the transaction queue until it is successfully transmitted or until the indirect transmission fails after the maximum number of IEEE 802.15.4 Data Request messages have been received.

Takes the place of macTransactionPersistenceTime. The time period is specified in units of IEEE 802.15.4 Data Request receptions, rather than being governed by macBeaconOrder.

This setting configures the minimum poll period in milliseconds.

Define to 1 to enable support for IEEE 802.15.4 MAC Multipurpose frame format.

This setting configures if the beacon payload needs to be enabled in outgoing beacon frames.

This is optional and is disabled by default because Thread 1.2.1 has removed support for beacon payloads.

Define to 1 to enable MAC retry packets histogram analysis.

The default size of MAC histogram array for success message retry direct transmission.

Default value is (OPENTHREAD_CONFIG_MAC_DEFAULT_MAX_FRAME_RETRIES_DIRECT + 1).

The default size of MAC histogram array for success message retry direct transmission.

Default value is (OPENTHREAD_CONFIG_MAC_DEFAULT_MAX_FRAME_RETRIES_INDIRECT + 1).

Specifies the maximum backoff exponent when adding random delay in between frame transmission retries on no-ack error.

It is applicable only when OPENTHREAD_CONFIG_MAC_ADD_DELAY_ON_NO_ACK_ERROR_BEFORE_RETRY is enabled.

Specifies the minimum backoff exponent to start with when adding random delay in between frame transmission retries on no-ack error.

It is applicable only when OPENTHREAD_CONFIG_MAC_ADD_DELAY_ON_NO_ACK_ERROR_BEFORE_RETRY is enabled.

This setting configures the retx poll period in milliseconds.

This setting configures the default scan duration in milliseconds.

Define to 1 to enable software ACK timeout logic.

Define to 1 to enable software CSMA-CA backoff logic.

Define to 1 to enable software energy scanning logic.

Define to 1 to enable software retransmission logic.

Define to 1 to enable software rx off when idle switching.

Define to 1 to enable software reception target time logic.

Define to 1 to enable software transmission security logic.

Define to 1 to enable software transmission target time logic.

Define as 1 to stay awake between fragments while transmitting a large packet, and to stay awake after receiving a packet with frame pending set to true.

The number of times each IEEE 802.15.4 broadcast frame is transmitted.

The minimum value is 1. Values larger than 1 may improve broadcast reliability by increasing redundancy, but may also increase congestion.

The minimum time (in microseconds) after the MHR start that the radio should be in receive state in order to properly receive any IEEE 802.15.4 frame.

Defaults to the duration of a maximum size frame, plus AIFS, plus the duration of maximum enh-ack frame. Platforms are encouraged to improve this value for energy efficiency purposes.

The minimum time (in microseconds) before the MHR start that the radio should be in receive state and ready to properly receive in order to properly receive any IEEE 802.15.4 frame.

Defaults to the duration of SHR + PHR.