Renesas RL78 Series User Manual page 388

RL78/G1D
Serial array unit has up to four serial channels. Each channel can achieve 3-wire serial (CSI), UART, and simplified
2
I C communication.
Function assignment of each channel supported by the RL78/G1D is as shown below.
Unit Channel
0 0
1
2
3
1 0
1
When "UART0" is used for channels 0 and 1 of the unit 0, CSI00 cannot be used, but UART1 of channels 2 and 3 can
be used.
Note For internal communication between MCU and RF transceiver.
R01UH0515EJ0120 Rev.1.20
Dec 16, 2016
CHAPTER 13 SERIAL ARRAY UNIT
Used as CSI
CSI00
–
–
–
CSI20
Note
CSI21
CHAPTER 13 SERIAL ARRAY UNIT
Used as Simplified I
Used as UART
UART0
UART1
–
2
C
IIC00
–
–
–
IIC20
–
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