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	Pmod I/F	Analog IO	PWM	Serial	Wire	Interrupt	Tone	PulseIn	ShiftIn	ShiftOut	LED	User Switch
P04	IO0	0	〇	〇	-	-	-	-	-	0	〇	-	〇	〇	-	-
P03	IO1	1	〇	〇	-	-	-	-	-	-	-	-	〇	〇	-	-
P137(※1)	IO2	2	〇	〇	〇	-	-	-	-	1	-	-	〇	〇	-	SW
P41	IO3	3	〇	〇	〇	-	〇	-	-	2	〇	〇	〇	〇	-	-
P21	IO4	4	〇	〇	-	-	-	-	-	-	-	-	〇	〇	LED2	-
P20	IO7	7	〇	〇	-	-	-	-	-	-	-	-	〇	〇	LED1	-
P05	IO13	13	〇	〇	-	-	-	-	-	-	〇	-	〇	〇	-	-
P23	A0	14	〇	〇	〇	A0	-	-	-	-	-	-	〇	〇	-	-
P22	A1	15	〇	〇	〇	A1	-	-	-	-	-	-	〇	〇	-	-
P02	A2	16	〇	〇	〇	A2	-	-	-	-	-	-	〇	〇	-	-
P06	SCL	18	〇	〇	〇	-	-	-	SCLA0	-	-	-	〇	〇	-	-
P07	SDA	19	〇	〇	〇	-	-	-	SDAA0	-	-	-	〇	〇	-	-
P00	-	-	-	〇	-	-	-	TxD0	-	-	-	-	-	-	-	-
P01	-	-	-	〇	-	-	-	RxD0	-	-	-	-	-	-	-	-
-	EVDD(IOREF)	-	〇	〇	〇	-	-	-	-	-	-	-	-	-	-	-
-	RESET	-	〇	-	-	-	-	-	-	-	-	-	-	-	-	-
-	3V3	-	〇	-	-	-	-	-	-	-	-	-	-	-	-	-
-	5V	-	〇	-	-	-	-	-	-	-	-	-	-	-	-	-
-	GND	-	〇	〇	〇	-	-	-	-	-	-	-	-	-	-	-

• (※1) Pin 2 (P137) is an input-only port, so the OUTPUT setting cannot be used.

2. Functions

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

No.	Name	Function
1	Digital IO	12 Digital input pins / 11 Digital output pins
2	Analog IO	3 Analog input pins
3	PWM	1 PWM output pin
4	Serial(UART)	1 Serial(UART) channel(※1)
5	Wire(I2C)	1 Wire(I2C) channel
6	Interrupt	3 Interrupt pins
7	Tone	3 Tone output pins
8	PulseIn	1 Pulse input pin
9	ShiftIn	11 Clock output pins / 12 Data input pins
10	ShiftOut	11 Clock output pins / 11 Data output pins
11	LED	2 on Board LED (pin 7 and pin 4)(※2)
12	User Switch	1 on Board User Switch (pin 2)(※3)

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

• (※2) LED1 (pin 7) and LED2 (pin 4) are pulled up on the circuit.

• (※3) User Switch (pin 2) 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/G15 Fast Prototyping Board has 12 Digital input pins and 11 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 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 input pin	Digital output pin	memo
0-4, 7, 13-16, 18, 19	0, 1, 3, 4, 7, 13-16, 18, 19	-

2-2. Analog IO(Analog Input)

• The RL78/G15 Fast Prototyping Board has 3 analog input pins.
• 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.
• analogReference(INTERNAL) and analogReference(EXTERNAL) is not supported.

• 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 1 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 analogWriteFrequency() to set the frequency, then use analogWrite() to generate PWM output.
• The range of frequencies that can be set with analogWriteFrequency() is 500 Hz to 8 MHz, and analogWrite() cannot control the duty ratio in detail at high frequencies.
• The pin corresponding to PWM output are as follows.

PWM output pin	memo
3	-

2-4. Serial(UART)

• The RL78/G15 Fast Prototyping Board has 1 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	-(P00)	-(P01)	Connect to Micro USB port via USB-Serial Converter when J14 is open-circuit

2-5. Wire(I2C)

• The RL78/G15 Fast Prototyping Board has 1 wire (I2C) channel.
• The pin assignments of the channels are as follows.

Channel	Data pin	Clock pin	memo
Wire	19(SDA)	18(SCL)	-

2-6. Interrupt

• The RL78/G15 Fast Prototyping Board has 3 external interrupt pins.
• The correspondences between external interrupt numbers and pins are as follows.

Interrupt No.	Interrupt pin	memo
0	0	-
1	2(SW)	-
2	3	-

2-7. Tone

• The RL78/G15 Fast Prototyping Board has 3 tone output pins.
• The range of frequencies that can be set with Tone() is from 500 Hz to 65535 Hz.
• The correspondences between tone outputs and pins are as follows.

Tone output pin	memo
0, 3, 13	-

2-8. PulseIn

• The RL78/G15 Fast Prototyping Board has 1 pulse input pin corresponding to pulseIn().
• The default time before timeout is 65535 us and can be set from 2 us to 65535 us.
• Measurable pulse length is 1 us to 131072 us.
• Pulse measurement is not available when interrupt processing is disabled.
• The pin corresponding to pulseIn() are as follows.

Pulse input pin	memo
3	-

2-9. ShiftIn

• The RL78/G15 Fast Prototyping Board has 11 clock output pins and 12 data input pins corresponding to shiftIn().
• The pins corresponding to shiftIn() are as follows.

Clock pin	Data pin	memo
0, 1, 3, 4, 7, 13-16, 18, 19	0-4, 7, 13-16, 18, 19	-

2-10. ShiftOut

• The RL78/G15 Fast Prototyping Board has 11 clock output pins and 11 data output pins corresponding to shiftOut() and shiftOutEx().
• The pins corresponding to shiftOut() and shiftOutEx() are as follows.

Clock pin	Data pin	memo
0, 1, 3, 4, 7, 13-16, 18, 19	0, 1, 3, 4, 7, 13-16, 18, 19	-

2-11. 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	-

2-12. 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
SW	2	-