RL78G15 Fast Prototyping Board pin list

RL78/G15 Fast Prototyping Board

Description

• The RL78/G15 Fast Prototyping Board is provided with interface pins for Arduino Uno conversion.

1. pinlist

• A pin list of the RL78/G15 Fast Prototyping Board is shown below.

RL78/G15 port Number	Pin Name	Arduino Pin Number(Digital IO)	Arduino Uno I/F	MCU header	Grove I/F	Analog IO	PWM	Serial	Wire	SPI	Interrupt	Tone	Pulse	ShiftIn/ShiftOut	LED	User Switch
P04	IO0	0	〇	〇	-	-	-	RXD1	-	-	0	〇	〇	〇	-	-
P03	IO1	1	〇	〇	-	-	-	TXD1	-	-	-	-	-	〇	-	-
P137	IO2	2	〇	〇	-	-	-	-	-	-	1	-	-	〇	-	〇
P41	IO3	3	〇	〇	-	-	〇	-	-	-	2	〇	〇	〇	-	-
P21	IO4	4	〇	〇	-	-	-	-	-	-	-	-	-	〇	LED2	-
P20	IO7	7	〇	〇	-	-	-	-	-	-	-	-	-	〇	LED1	-
P05	IO13	13	〇	〇	-	-	-	-	-	-	-	〇	〇	〇	-	-
P23	A0	14	〇	〇	-	A0	-	-	-	-	-	-	-	〇	-	-
P22	A1	15	〇	〇	-	A1	-	-	-	-	-	-	-	〇	-	-
P02	A2	16	〇	〇	-	A2	-	-	-	-	-	-	-	〇	-	-
P06	SCL	18	〇	〇	-	-	-	-	SCL0	-	-	-	-	-	-	-
P07	SDA	19	〇	〇	-	-	-	-	SDA0	-	-	-	-	-	-	-
-	-	IOREF	〇		-	-	-	-	-	-	-	-	-	-	-	-
RESET	-	RESET	〇		-	-	-	-	-	-	-	-	-	-	-	-
-	-	3V3	〇		-	-	-	-	-	-	-	-	-	-	-	-
-	-	5V	〇		-	-	-	-	-	-	-	-	-	-	-	-
GND	-	GND	〇		-	-	-	-	-	-	-	-	-	-	-	-

2. Functions

• The functions of the RL78/G15 Fast Prototyping Board are listed below.

No.	Name	Function
1	Digital IO	10 Digital Input/output pins
2	Analog IO	3 Analog Input pins
3	PWM	1 PWM Output pins
4	Serial(UART)	1 Serial(UART) channels(※1)
5	Wire(I2C)	1 Wire(I2C) channels
6	Interrupt	3 Interrupt pins
7	Tone	3 Tone Output pins
8	Pulse	3 Pulse Input/Output pins
9	ShiftIn/ShitOut	10(5pair) shiftIn/ShiftOut pins
10	LED	2 on Board LED (pin 7 and pin 4)
11	User Switch	1 on Board User Switch (pin 2)

• (※1) One serial channel (Serial) connects to a Micro-USB connector via a USB-serial converter.
• Refer to the following link for reference on the various functions.
• Arduino Reference - Arduino Reference

2-1. Digital IO

• The RL78/G15 Fast Prototyping Board has 10 digital inputs and outputs.
• In order to use digital I/O, it is necessary to first configure pin direction settings using

• 1. Using pin3 as an input.

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

• 2. Using pin4 as an output.

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

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

  Digital pin	memo
  0-4, 7, 13-16

2-2. Analog IO(Analog Input)

• The RL78/G15 Fast Prototyping Board has three analog inputs and outputs.
• 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	-
A1	-
A2	-

2-3. PWM

• The RL78/G15 Fast Prototyping Board has one PWM output pin.
• 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 analogWritePinFrequency() 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	-

2-4. Serial(UART)

• The RL78/G15 Fast Prototyping Board has one serial (UART) channel.
• A serial channel (Serial) is connected to a Micro-USB connector via a USB-serial converter.
• The Serial1 channel and SPI channel cannot be used simultaneously.
• The pin assignments of the channels are as follows.

Channel	Transmit pin	Receive pin	memo
Serial1	1	0	Serial1 cannot be used simultaneously with the SPI channel.

2-5. Wire(I2C)

• The RL78/G15 Fast Prototyping Board has one wire (I2C) channel.
• The Wire1 channel is connected to the Grove interface pin.
• The pin assignments of the channels are as follows.

Channel	Data pin	Clock pin	memo
Wire	19	18	-

2-6. Interrupt

• Three channels have three 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	-

2-7. Tone

• The RL78/G15 Fast Prototyping Board has three tone output pins.
• The correspondences between tone outputs and pins are as follows.

Tone output pin	memo
0	-
3	-
13	-

2-8. Pulse

• The RL78/G15 Fast Prototyping Board has three pulse input/output pins.
• The correspondences between pulse inputs/outputs and pins are as follows.

Pulse input/output pin	memo
0	-
3	-
13	-

2-9. ShiftIn/ShiftOut

• The RL78/G15 Fast Prototyping Board has 10 shift input/output pins (5 pairs).
• The correspondences between shift inputs/outputs and pins are as follows.

Clock pin	Data pin	memo
0-4, 7, 13-16	0-4, 7, 13-16

2-10. LED

• The RL78/G15 Fast Prototyping Board has two LEDs mounted on it.
• The pins connected to the LEDs are as follows.

Name	pin	memo
LED1	7	-
LED2	4	-

2-11. User Switch

• The RL78/G15 Fast Prototyping Board has one user switch.
• The pin connected to the user switch is as follows.

Name	pin	memo
SW1	2	-