Renesas RL78/G13

RL78/G13 CHAPTER 12 SERIAL ARRAY UNIT
R01UH0146EJ0100 Rev.1.00 534
Sep 22, 2011
CHAPTER 12 SERIAL ARRAY UNIT
Serial array unit 0 has four serial channels, and serial array unit 1 has two. Each channel can achieve 3-wire serial
(CSI), UART, and simplified I
2
C communication.
Function assignment of each channel supported by the RL78/G13 is as shown below.
• 20, 24, 25-pin products
Unit Channel Used as CSI Used as UART
Used as Simplified I
2
C
0 CSI00 IIC00
1
−
UART0
−
2
− −
0
3 CSI11
UART1
IIC11
0
− −
1
1
−
−
−
• 30, 32-pin products
Unit Channel Used as CSI Used as UART
Used as Simplified I
2
C
0 CSI00 IIC00
1
−
UART0
−
2
− −
0
3 CSI11
UART1
IIC11
0 CSI20 IIC20 1
1
−
UART2 (supporting LIN-bus)
−
• 36, 40, 44-pin products
Unit Channel Used as CSI Used as UART
Used as Simplified I
2
C
0 CSI00 IIC00
1
−
UART0
−
2
− −
0
3 CSI11
UART1
IIC11
0 CSI20 IIC20 1
1 CSI21
UART2 (supporting LIN-bus)
IIC21
• 48, 52-pin products
Unit Channel Used as CSI Used as UART
Used as Simplified I
2
C
0 CSI00 IIC00
1 CSI01
UART0
IIC01
2
− −
0
3 CSI11
UART1
IIC11
0 CSI20 IIC20 1
1 CSI21
UART2 (supporting LIN-bus)
IIC21