Datasheet

811
SAM3X / SAM3A [DATASHEET]
Atmel-11057C-ATARM-SAM3X-SAM3A-Datasheet_23-Mar-15
35.7.8.10 Node Action
In function of the identifier, the node is concerned, or not, by the LIN response. Consequently, after sending or
receiving the identifier, the USART must be configured. There are three possible configurations:
 PUBLISH: the node sends the response.
 SUBSCRIBE: the node receives the response.
 IGNORE: the node is not concerned by the response, it does not send and does not receive the response.
This configuration is made by the field, Node Action (NACT), in the US_LINMR register (see Section 35.8.16).
Example: a LIN cluster that contains a Master and two Slaves:
 Data transfer from the Master to the Slave 1 and to the Slave 2:
NACT(Master)=PUBLISH
NACT(Slave1)=SUBSCRIBE
NACT(Slave2)=SUBSCRIBE
 Data transfer from the Master to the Slave 1 only:
NACT(Master)=PUBLISH
NACT(Slave1)=SUBSCRIBE
NACT(Slave2)=IGNORE
 Data transfer from the Slave 1 to the Master:
NACT(Master)=SUBSCRIBE
NACT(Slave1)=PUBLISH
NACT(Slave2)=IGNORE
 Data transfer from the Slave1 to the Slave2:
NACT(Master)=IGNORE
NACT(Slave1)=PUBLISH
NACT(Slave2)=SUBSCRIBE
 Data transfer from the Slave2 to the Master and to the Slave1:
NACT(Master)=SUBSCRIBE
NACT(Slave1)=SUBSCRIBE
NACT(Slave2)=PUBLISH