Renesas RL78/G1H User Manual

RL78/G1H CHAPTER 14 SERIAL ARRAY UNIT
R01UH0575EJ0120 Rev. 1.20 Page 369 of 920
Dec 22, 2016
Figure 14 - 37 Flowchart of Master Reception (in Single-Reception Mode)
Note For the initial setting, refer to Figure 14 - 33.(Select Transfer end interrupt)
SAU default setting
Starting CSI communication
Wait for receive completes
End of communication
Clear interrupt request flag (XXIF), reset interrupt mask (XXMK) and set
interrupt enable (EI)
Reading receive data to
SIOp (= SDRmn [7:0])
Yes
No
Setting receive data
Setting storage area of the receive data, number of communication data
(Storage area, Reception data pointer, Number of communication data and
Communication end flag are optionally set on the internal RAM by the software)
Enables interrupt
Writing dummy data to
SIOp (= SDRmn [7:0])
Writing to SIOp makes SCKp signals out
(communication starts)
Transfer end interrupt
generated?
When transfer end interrupt is generated , it
moves to interrupt processing routine
Read receive data then writes to storage area .
Update receive data pointer and number of
communication data.
RETI
All reception completed?
Disable interrupt (MASK)
Write STmn bit to 1
Check the number of communication data
Main routineInterrupt processing routineMain routine
Note

Renesas RL78/G1H Specifications

General

Brand	Renesas
Model	RL78/G1H
Category	Microcontrollers
Language	English