AN2103 Freescale Semiconductor / Motorola, AN2103 Datasheet - Page 2
AN2103
Manufacturer Part Number
AN2103
Description
Local Interconnect Network (LIN) Demonstration
Manufacturer
Freescale Semiconductor / Motorola
Datasheet
1.AN2103.pdf
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Application Note
master control
master task
slave task
unit
SYNCH
BREAK
Data is transferred across the bus in fixed form messages of selectable
lengths. The master task transmits a header that consists of a break
signal followed by synchronization and identifier fields. The slaves
respond with a data frame that consists of between 2, 4 and 8 data bytes
plus 3 bytes of control information.
concept of message transfer and the message format.
HEADER
•
•
•
•
•
•
•
•
•
Freescale Semiconductor, Inc.
SYNCH
FIELD
For More Information On This Product,
Single wire communications up to 20Kbit/s
Guaranteed latency times
Variable length of data frame (2, 4 and 8 byte)
Configuration flexibility
Multi-cast reception with time synchronization, without crystals or
ceramic resonators.
Data checksum and error detection
Detection of defect nodes
Low cost silicon implementation based on standard UART/SCI
hardware
Enabler for hierarchical networks
Figure 1 LIN Message frame
IDENT
FIELD
Go to: www.freescale.com
MESSAGE FRAME
In-Frame
response
control unit
space
slave task
slave
DATA
FIELD
Figure 1
DATA
FIELD
RESPONSE
Interbyte
Space
shows the communication
control unit
slave task
FIELD
DATA
slave
CHECKSUM
FIELD
MOTOROLA
AN2103
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