Renesas RL78/D1A User Manual

RL78/F13, F14 CHAPTER 15 SERIAL ARRAY UNIT
R01UH0368EJ0210 Rev.2.10 984
Dec 10, 2015
Figure 15-139. Flowchart for LIN Transmission
Note When LIN-bus start from sleep status only
Remark Default setting of the UART is complete, and the flow from the transmission enable status.
Starting LIN
communication
Transmitting wakeup signal frame
(
80H → TxD
0
)
UART 0 st op
(1 → ST00 bit)
End of LIN
communication
Trans mi tti ng
s
y
nc field
Operation of the hardware (reference
)
Ye s
TSF00 = 0?
No
Transmitting wakeup
signal frame
No t e
Waiting for completion
of transmission
8 bitsTxD0
Wakeup signal frame generation
Tra nsm i t da ta
Changing UART0 baud rate
(
zz → SDR
[
15:9
])
Changing baud rate
for BF
UART0 restar t
(1 → SS00 bit)
BF transmission
00 → TxD0
Yes
TSF00 = 0?
No
Waiting for
completion of BF
transmission
13-bit length TxD0
BF generation
Tra nsmi t da ta
UART0 stop
(
1 → ST00 bit
)
Changing UART
0
baud rate
(xx → SDR[15:9])
Retur n the baud rate
UART0 restart
(1 → SS00 bit
)
55H
TxD0
Sync field data generation
Waiting for completion of transmission (transmission
completed to the LIN bus)
Transmitting ID to
checksum
Transmitting sync field
55H → TxD0
Yes
TSF00 = 0?
No
Data → TxD0
Ye s
BFF00 = 0?
No
Yes
BFF00 = 0?
No
Yes
Completing all data
transmission?
No
Waiting for buffer
empty
Waiting for buffer empty
Waiting for transmission ID to checksum

Renesas RL78/D1A Specifications

General

Brand	Renesas
Model	RL78/D1A
Category	Computer Hardware
Language	English