RL78G16 Fast Prototyping Board pin list

RL78/G16 Fast Prototyping Board

Description

• The RL78/G16 Fast Prototyping Board is provided with interface pins for Arduino Uno conversion.

1. pinlist

• A pin list of the RL78/G16 Fast Prototyping Board is shown below.

RL78/G16 port Number	Pin Name	Arduino Pin Number(Digital IO)	Arduino Uno I/F	MCU header	Pmod I/F	Grove I/F	Analog IO	PWM	Serial	Wire	SPI	Interrupt	Tone	PulseIn	ShiftIn	ShiftOut	Servo	Stepper	LED	User Switch
P04	0	0	〇	〇	〇	-	-	-	-	-	-	0	-	-	〇	〇	〇	〇	-	-
P03	1	1	〇	〇	〇	-	-	-	-	-	-	-	-	-	〇	〇	〇	〇	-	-
P11	2	2	〇	〇	〇	-	-	-	-	-	-	1	-	-	〇	〇	〇	〇	-	-
P10	~3	3	〇	〇	〇	-	-	〇	-	-	-	2	〇	〇	〇	〇	〇	〇	-	-
P14	4	4	〇	〇	〇	-	-	-	-	-	-	3	-	-	〇	〇	〇	〇	-	-
P16	5	5	〇	〇	〇	-	-	-	-	-	-	-	-	-	〇	〇	〇	〇	-	-
P17	~6	6	〇	〇	〇	-	-	〇	-	-	-	-	〇	〇	〇	〇	〇	〇	-	-
P43	8	8	〇	〇	〇	-	-	-	-	-	SS	-	-	-	〇	〇	〇	〇	-	-
P21	11	11	〇	〇	〇	-	-	-	-	-	MOSI	-	〇	-	〇	〇	〇	〇	-	-
P20	12	12	〇	〇	-	-	-	-	-	-	MISO	-	-	-	〇	〇	〇	〇	-	-
P41	13	13	〇	〇	-	-	-	-	-	-	SCK	-	-	-	〇	〇	〇	〇	-	-
P40	-	14	-	〇	-	-	-	-	-	-	-	-	-	-	〇	〇	〇	〇	-	-
P137(※1)	-	15	-	〇	〇	-	-	-	-	-	-	4	-	-	〇	-	-	-	-	SW2
P12	-	16	-	〇	〇	-	-	-	-	-	-	-	-	-	〇	〇	〇	〇	LED1	-
P13	-	17	-	〇	〇	-	-	-	-	-	-	5	-	-	〇	〇	〇	〇	-	-
P15	-	18	-	〇	〇	-	-	-	-	-	-	-	-	-	〇	〇	〇	〇	LED2	-
P00	-	19	-	〇	-	-	-	-	TxD0	-	-	-	-	-	〇	〇	〇	〇	-	-
P01	-	20	-	〇	-	-	-	-	RxD0	-	-	-	-	-	〇	〇	〇	〇	-	-
P60	SCL	21	〇	〇	〇	〇	-	-	-	SCL0	-	-	-	-	〇	-	-	-	-	-
P61	SDA	22	〇	〇	〇	〇	-	-	-	SDA0	-	-	-	-	〇	-	-	-	-	-
P05	A0	23	〇	〇	〇	-	A0	-	-	-	-	6	-	-	〇	〇	〇	〇	-	-
-	VDD(IOREF)	-	〇	〇	〇	〇	-	-	-	-	-	-	-	-	-	-	-	-	-	-
-	RESET	-	〇	〇	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
-	3V3	-	〇	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
-	5V	-	〇	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
-	GND	-	〇	〇	〇	〇	-	-	-	-	-	-	-	-	-	-	-	-	-	-

• (※1) Pin 15 (P137) is an input-only port, so the OUTPUT setting cannot be used.

2. Functions

• The functions of the RL78/G16 Fast Prototyping Board are listed below.

No.	Name	Function
1	Digital IO	21 Digital input pins / 18 Digital input_pullup pins / 18 Digital output pins
2	Analog IO	1 Analog input pin
3	PWM	2 PWM output pins
4	Serial(UART)	1 Serial(UART) channel(※1)
5	SoftwareSerial	7 RX pins / 18 TX pins
6	Wire(I2C)	1 Wire(I2C) channel
7	SPI	1 SPI channel
8	Interrupt	7 Interrupt pins
9	Tone	3 Tone output pins
10	PulseIn	2 Pulse input pins
11	ShiftIn	18 Clock output pins / 21 Data input pins
12	ShiftOut	18 Clock output pins / 18 Data output pins
13	Servo	18 Servo output pins
14	Stepper	18 Stepper output pins
15	LED	2 on Board LED (pin 16 and pin 18)(※2)
16	User Switch	1 on Board User Switch (pin 15)(※3)

• (※1) Serial(RxD0, TxD0) connects to a USB Type-C connector via a USB-serial converter.

• (※2) LED1 (pin 16) and LED2 (pin 18) are pulled up on the circuit.

• (※3) User Switch (pin 15) is pulled up on the circuit.

• Refer to the following link for reference on the various functions.

• Arduino Reference - Arduino Reference

2-1. Digital IO

• The RL78/G16 Fast Prototyping Board has 21 Digital input pins and 18 Digital input_pullup pins and 18 Digital output pins.
• When using digital IO, pinMode() must first be called to set the specified pin to operate as an input or output.

• 1. Using pin 2 as an input.

   pinMode(2,INPUT);
   val = digitalRead(2);

• 2. Using pin 3 as an input_pullup.

   pinMode(3,INPUT_PULLUP);
   val = digitalRead(3);

• 3. Using pin 4 as an output.

   pinMode(4,OUTPUT);
   digitailWrite(4,HIGH);

• The pins corresponding to digital I/O are as follows.

Digital input pin	Digital input_pullup pin	Digital output pin	memo
0-6, 8, 11-23	0-6, 8, 11-14, 16-20, 23	0-6, 8, 11-14, 16-20, 23	-

2-2. Analog IO(Analog Input)

• The RL78/G16 Fast Prototyping Board has 1 analog input pin.
• Analog input signals are A/D converted and the resulting digital values are returned.
• To use analog input, use analogRead() to specify the analog pin name and read the data.

• Use A0 pin

val =analogRead(A0);

• The pins corresponding to analog input are as follows.

analog input pin	memo
A0	-

2-3. PWM

• The RL78/G16 Fast Prototyping Board has 2 PWM output pins.
• To use PWM output, use analogWrite() to specify the pin name and duty, and generate PWM output.
• To change the PWM output pulse frequency, use analogWriteFrequency() to set the frequency, then use analogWrite() to generate PWM output.
• The pins corresponding to PWM output are as follows.

PWM output pin	memo
3, 6	-

2-4. Serial(UART)

• The RL78/G16 Fast Prototyping Board has one serial (UART) channel.
• The default transmit buffer size when using each channel is 32 bytes.
• The default receive buffer size when using each channel is 32 bytes.
• The pin assignments of the channels are as follows.

Channel	Transmit pin	Receive pin	memo
Serial	19	20	Connect to USB Type-C port via USB-Serial Converter.

2-5. SoftwareSerial

• The RL78/G16 Fast Prototyping Board has 7 RX pins and 18 TX pins for SoftwareSerial.
• The pins corresponding to SoftwareSerial are listed below.

RX pin	TX pin	memo
0, 2-4, 15, 17, 23	0-6, 8, 11-14, 16-20, 23	-

2-6. Wire(I2C)

• The RL78/G16 Fast Prototyping Board has 1 wire (I2C) channel.
• The pin assignments of the channels are as follows.

Channel	Data pin	Clock pin	memo
Wire	22(SDA)	21(SCL)	-

2-7. SPI

• The RL78/G16 Fast Prototyping Board has 1 SPI channel.
• The pin assignment of the channel is as follows.

Channel	Chip Select pin	Data out pin	Data in pin	Clock pin	memo
SPI	8	11	12	13	-

2-8. Interrupt

• The RL78/G16 Fast Prototyping Board has 7 external interrupt pins.
• The correspondences between external interrupt numbers and pins are as follows.

Interrupt No.	Interrupt pin	memo
0	0	-
1	2	-
2	3	-
3	4	-
4	15(SW)	-
5	17	-
6	23	-

2-9. Tone

• The RL78/G16 Fast Prototyping Board has 3 tone output pins.
• The correspondences between tone outputs and pins are as follows.

Tone output pin	memo
3, 6, 11	-

2-10. PulseIn

• The RL78/G16 Fast Prototyping Board has 2 pulse input pins corresponding to pulseIn().
• The pins corresponding to pulseIn() are as follows.

Pulse input pin	memo
3, 6	-

2-11. ShiftIn

• The RL78/G16 Fast Prototyping Board has 18 clock output pins and 21 data input pins corresponding to shiftIn().
• The pins corresponding to shiftIn() are as follows.

Clock pin	Data pin	memo
0-6, 8, 11-14, 16-20, 23	0-6, 8, 11-23	-

2-12. ShiftOut

• The RL78/G16 Fast Prototyping Board has 18 clock output pins and 18 data output pins corresponding to shiftOut().
• The pins corresponding to shiftOut() are as follows.

Clock pin	Data pin	memo
0-6, 8, 11-14, 16-20, 23	0-6, 8, 11-14, 16-20, 23	-

2-13. Servo

• The RL78/G16 Fast Prototyping Board has 18 Servo output pins.
• The correspondences between Servo output pins are as follows.

Servo output pin	memo
0-6, 8, 11-14, 16-20, 23	-

2-14. Stepper

• The RL78/G16 Fast Prototyping Board has 18 Stepper output pins.
• The correspondences between Stepper output pins are as follows.

Stepper output pin	memo
0-6, 8, 11-14, 16-20, 23	-

2-15. LED

• The RL78/G16 Fast Prototyping Board has two LEDs mounted on it.
• The pins connected to the LEDs are as follows.

Name	pin	memo
LED1	16	-
LED2	18	-

2-16. User Switch

• TheRL78/G16 Fast Prototyping Board has one user switch.
• The pin connected to the user switch is as follows.

Name	pin	memo
SW1	15	-