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Renesas RL78 Series

Renesas RL78 Series
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RL78/F13, F14 CHAPTER 15 SERIAL ARRAY UNIT
R01UH0368EJ0210 Rev.2.10 999
Dec 10, 2015
Figure 15-146. Flowchart of Address Field Transmission
Remark m: Unit number (m = 0, 1), n: Channel number (n = 0, 1), mn = 00, 01, 10, 11
Starting IIC communication
Writing 0 to the SOmn bit
Address field
transmission completed
Specify the initial settings
while the SEmn bit of
serial channel enable
status register m (SEm) is
0 (operation is stopped).
SMRmn, SCRmn: Setting communication
SPSm, SDRmn[15:9]: Setting transfer rate
Transfer end interrupt
g
enerated?
No
Yes
Writing address and R/W
data to the SDRmn register
Writing 1 to the SSmn bit
Parity error (ACK error) flag
PEFmn = 1 ?
No
Yes
ACK reception error
To data transmission flow
and data reception flow
Writing 1 to the SOEmn bit
Writing 0 to the CKOmn bit

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