Datasheet

Section 23 Hardware LIN
REJ09B0465-0300 Rev. 3.00 Page 811 of 982
Sep 17, 2010
H8S/20103, H8S/20203, H8S/20223, H8S/20115, H8S/20215, H8S/20235 Group
23.3.3 Bus Conflict Detection Function
The hardware LIN interface can detect bus conflicts if SCI3_1 is enabled for transmission (TE bit
in SCR3 register is 1).
Figure 23.9 shows the example of hardware LIN interface operation for detecting bus conflicts.
TXD pin
"1"
"0"
"1"
"0"
"1"
"0"
"1"
"0"
"1"
"0"
"1"
"0"
"1"
"0"
RXD pin
Transfer clock
LINE bit
in LINCR
TE bit in
SCR3 register
BCDCT flag
in LINST
Timer RA/
HW-LIN
interrupt TRAIF
Write 1 to the
B2CLR bit in LINST.
Set to 1 through programming.
Set to 1 through programming.
Figure 23.9 Example of LIN Operation for Detecting Bus Conflicts