Renesas RL78 Series User Manual page 421

RL78/G1D
The channels supporting 3-wire serial I/O (CSI00, CSI20, CSI21) are channels 0 and 2 of SAU0 and channel 1 of SAU1.
Unit Channel
0 0
1
2
3
1 0
1
3-wire serial I/O (CSI00, CSI20, CSI21) performs the following eight types of communication operations.
● Master transmission
● Master reception
● Master transmission/reception
● Slave transmission
● Slave reception
● Slave transmission/reception
● SNOOZE mode function
● CSI21 transmission/reception
Note For internal communication between MCU and RF transceiver.
R01UH0515EJ0120 Rev.1.20
Dec 16, 2016
Used as CSI
CSI00
–
–
–
CSI20
Note
CSI21
(See 13.5.1.)
(See 13.5.2.)
(See 13.5.3.)
(See 13.5.4.)
(See 13.5.5.)
(See 13.5.6.)
(See 13.5.7.)
(See 2.2.)
CHAPTER 13 SERIAL ARRAY UNIT
Used as Simplified I
Used as UART
UART0
UART1
–
2
C
IIC00
–
–
–
IIC20
–
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