Lin Communication Function - Fujitsu 8FX Hardware Manual

CHAPTER 14 LIN-UART
14.6 Operations of LIN-UART and LIN-UART
Setting Procedure Example
14.6.7

LIN Communication Function

In LIN-UART communication, a LIN device can be used in a LIN master system
or a LIN slave system.
■ LIN Master/Slave Mode Communication Function
Figure 14.6-16 shows the required settings for the LIN communication mode (operating mode
3) of the LIN-UART.
Figure 14.6-16 Settings of LIN-UART Operating Mode 3 (LIN)
bit15 bit14 bit13 bit12 bit11 bit10 bit9
SCR, SMR PEN P
Mode 3 + ×
SSR,
PE ORE FRE
RDR/TDR
Mode 3 ×
ESCR, ECCR LBIE LBD LBL1 LBL0 SOPE SIOP CCO SCES
Mode 3
: Bit to be used
× : Unused bit
1 : Set to "1"
0 : Set to "0"
+ : Bit correctly set automatically
● LIN device connection
Figure 14.6-17 shows an example of communication in a LIN bus system.
The LIN-UART can operate as a LIN master or a LIN slave.
Figure 14.6-17 Example of LIN Bus System Communication
LIN master
240
SBL CL AD CRE RXE TXE MD1 MD0 OTO EXT REST UPCL SCKE SOE
+ + × 0
BDS RIE
RDRF TDRE
+
SOT
SIN
Transceiver
FUJITSU SEMICONDUCTOR LIMITED
bit8 bit7 bit6
1 1
Set conversion data (during writing)
TIE
Retain reception data (during reading)
LBR MS SCDE SSM
Reserved
0 0 0
LIN bus
Transceiver
MB95630H Series
bit5 bit4 bit3 bit2 bit1
0 0 0
RBI
Reserved
× × × 0
SOT
SIN
LIN slave
MN702-00009-2v0-E
bit0
TBI