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CHAPTER 20 LIN-UART
20.7 Operation of LIN-UART
LIN-UART operates in operation mode 0 for normal bidirectional serial communication,
in mode 2 and 3 in bidirectional communication as master or slave, and in mode 1 as
master or slave in multiprocessor communication.
■ Operation of LIN-UART
●
Operation modes
There are four LIN-UART operation modes: modes 0 to 3. As listed in Table 20.7-1 , an operation mode
can be selected according to the communication method.
Note:
Mode 1 operation is supported both for master or slave operation of LIN-UART in a master-slave
connection system. In Mode 3, the LIN-UART function is locked to 8N1-Format, LSB first.
If the mode is changed, LIN-UART cuts off all possible transmission or reception and awaits then new
action.
Table 20.7-1 Operation Mode of LIN-UART
Operation mode Data length Synchronization
of mode
Length of stop bit Data bit
format
Parity disabled Parity enabled
0 Normal mode 7 or 8 bits Asynchronous 1 or 2 bits LSB first
MSB first
1 Multiprocessor
mode
7 or 8 bits + 1* - Asynchronous
2 Normal mode 8 Synchronous None, 1 or 2 bits
3 LIN mode 8 - Asynchronous 1 bit LSB first
-: Setting disabled
*: "+1" means the indicator bit of the address/data selection used for controlling communication in the multiprocessor mode.