Renesas RL78 Series - Page 882

RL78/F13, F14 CHAPTER 15 SERIAL ARRAY UNIT
R01UH0368EJ0210 Rev.2.10 850
Dec 10, 2015
Figure 15-38. Flowchart of Master Reception (in Single-Reception Mode)
Remark m: Unit number (m = 0, 1), n: Channel number (n = 0, 1), p: CSI number (p = 00, 01, 10, 11),
mn = 00, 01, 10, 11
Starting CSI communication
Port manipulation
Setting the SAU1EN and
SAU0EN bits of the PER0 register to 1
Setting transfer rate with the SPSm
register
No
Writing 1 to the SSmn bit
Writing dummy data to
the SDRmn register
Transfer end interrupt
generated?
Reading the SDRmn register
Setting the SAU1EN and SAU0EN bits
of the PER0 register to 0
End of communication
No
Starting reception
Reception completed?
Writing 1 to the STmn bit
Yes
Yes
SMRmn, SCRmn: Setting communication
SDRmn[15:9]: Setting transfer rate
SOm: Setting SCKp output
Specify the initial settings while the SEmn bit is
0.