NUC970 Technical Reference Manual
Publication Release Date: Dec. 15, 2015
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Revision V1.30
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Structure of LIN Frame
According to the LIN protocol, all information is transmitted packed as frames; a frame consist
(provided by the master task) a header and a response (provided by a slave task). That is any
communication on the LIN bus is started by the master sending a header, followed by the response.
The header (provided by the master task) consists of a break field and sync field followed by a frame
identifier (frame ID). The frame identifier uniquely defines the purpose of the frame. The slave task
appointed for providing the response associated with the frame ID and the response consists of a data
field and a checksum field. The following diagram is the structure of LIN function mode.
Figure 5.16-11 LIN Frame Structure
Data 1
Data 2
Data N
Check
Sum
Protected
Identifier
field
Header
Response
space
Response
Inter-
frame
space
Frame
Frame slot
Synch
field
Break
Field
Inter-byte spaces
Inter-byte spaces
Break/Sync
Delimiter Length