RL78/F13, F14 CHAPTER 17 LIN/UART MODULE (RLIN3)
R01UH0368EJ0210 Rev.2.10 1213
Dec 10, 2015
(3) Multi-Byte Response Transmission/Reception Function
Normally in LIN communications, a response is 9 bytes or less (including a checksum field); however, responses in 10 bytes
or greater can also be sent and received.
In such a case, the bit error, framing error, response preparation error detection, and auto checksum functions are enabled.
If the data length is greater than 8 bytes, the LSS bit should be set to 1 (indicating that the next data group to be sent or
received is not the final data group) in the first data group (variable in 0 to 8 bytes) before sending or receiving the data
group. After the transmission or reception, the user should determine whether the next data group is the final data group. If
it is the final data group, the LSS bit should be set to 0 (indicating that the next data group to be sent or received is the final
data group), and a checksum should be appended to the final data group.
By changing the RFDL bit settings when the RTS bit is 0, the user can change the data length for each data group.
When performing multi-byte response transmission/reception in LIN master mode, set the FSM bit in the LDFCn register to
1 (frame separate mode).
Caution In LIN slave mode, the LIN/UART module can detect a new break field during the transmission or
reception of a response.
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