RL78G24 Fast Prototyping Board pin list

RL78/G24 Fast Prototyping Board

Description

• The RL78/G24 Fast Prototyping Board is provided with interface pins for Arduino Uno conversion.

1. pinlist

• A pin list of the RL78/G24 Fast Prototyping Board is shown below.

RL78/G24 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	LED	User Switch
P03	0	0	〇	〇	〇	-	-	-	RxD1	-	-	-	-	〇	〇	〇	-	-
P02	1	1	〇	〇	〇	-	-	-	TxD1	-	-	-	-	〇	〇	〇	-	-
P140	2	2	〇	〇	-	-	-	-	-	-	-	0	-	〇	〇	〇	-	-
P17	~3	3	〇	〇	-	-	-	KB32	-	-	-	-	KB32	〇	〇	〇	-	-
P122	4	4	〇	〇	-	-	-	-	-	-	-	1	-	〇	〇	〇	-	-
P16	~5	5	〇	〇	-	-	-	KB32	-	-	-	2	KB32	〇	〇	〇	-	-
P15	~6	6	〇	〇	〇	-	-	RD2	-	-	-	-	RD2	〇	〇	〇	-	-
P121	7	7	〇	〇	-	-	-	-	-	-	-	3	-	〇	〇	〇	-	-
P30	8	8	〇	〇	-	-	-	-	-	-	-	-	-	〇	〇	〇	-	-
P14	~9	9	〇	〇	〇	-	-	RD2	-	-	-	-	RD2	〇	〇	〇	-	-
P13	~10	10	〇	〇	〇	-	-	RD2	-	-	-	-	RD2	〇	〇	〇	-	-
P12	~11	11	〇	〇	-	-	-	RD2	-	-	-	-	RD2	〇	〇	〇	-	-
P11	~12	12	〇	〇	-	〇	-	RD2	-	-	-	-	RD2	〇	〇	〇	-	-
P10	~13	13	〇	〇	-	〇	-	RD2	-	-	-	-	RD2	〇	〇	〇	-	-
P43	-	14	-	〇	〇	-	-	-	-	-	-	4	-	〇	〇	〇	-	-
P42	-	15	-	〇	〇	-	-	-	-	-	-	5	-	〇	〇	〇	-	-
P41	-	16	-	〇	〇	-	-	-	-	-	-	-	-	〇	〇	〇	-	-
P40	-	17	-	〇	-	-	-	-	-	-	-	-	-	〇	〇	〇	-	-
P124	-	18	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
P123	-	19	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
P137(※2)	-	20	-	〇	-	-	-	-	-	-	-	6	-	〇	〇	-	-	SW
P62	-	21	-	〇	-	-	-	-	-	-	-	-	-	〇	〇	〇	LED1	-
P63	-	22	-	〇	-	-	-	-	-	-	-	-	-	〇	〇	〇	LED2	-
P31	-	23	-	〇	〇	-	-	-	-	-	-	-	-	〇	〇	〇	-	-
P77	-	24	-	〇	〇	-	-	-	TxD2	-	-	7	-	〇	〇	〇	-	-
P76	-	25	-	〇	〇	-	-	-	RxD2	-	-	8	-	〇	〇	〇	-	-
P75	-	26	-	〇	-	〇	-	-	-	-	-	-	-	〇	〇	〇	-	-
P74	-	27	-	〇	-	〇	-	-	-	-	-	-	-	〇	〇	〇	-	-
P73	-	28	-	〇	-	-	-	-	-	-	-	-	-	〇	〇	〇	-	-
P72	-	29	-	〇	-	-	-	-	-	-	-	-	-	〇	〇	〇	-	-
P71	-	30	-	〇	-	〇	-	-	-	-	-	-	-	〇	〇	〇	-	-
P70	-	31	-	〇	-	〇	-	-	-	-	-	-	-	〇	〇	〇	-	-
P06	-	32	-	〇	-	-	-	-	-	-	-	-	-	〇	〇	〇	-	-
P05	-	33	-	〇	-	-	-	-	-	-	-	-	-	〇	〇	〇	-	-
P50	-	34	-	〇	-	-	-	-	RxD0	-	-	-	-	〇	〇	〇	-	-
P51	-	35	-	〇	-	-	-	-	TxD0	-	-	-	-	〇	〇	〇	-	-
P52	-	36	-	〇	-	-	-	-	-	-	-	9	-	〇	〇	〇	-	-
P53	-	37	-	〇	〇	-	-	-	-	-	-	10	-	〇	〇	〇	-	-
P54	-	38	-	〇	〇	-	-	-	-	-	-	11	-	〇	〇	〇	-	-
P55	-	39	-	〇	〇	-	-	-	-	-	-	12	-	〇	〇	〇	-	-
P146	-	40	-	〇	-	-	-	-	-	-	-	-	-	〇	〇	〇	-	-
P27	-	41	-	〇	-	-	-	-	-	-	-	-	-	〇	〇	〇	-	-
P26	-	42	-	〇	-	-	-	-	-	-	-	-	-	〇	〇	〇	-	-
P25	-	43	-	〇	-	-	-	-	-	-	-	-	-	〇	〇	〇	-	-
P24	-	44	-	〇	-	-	-	-	-	-	-	-	-	〇	〇	〇	-	-
P21	-	45	-	〇	-	-	-	-	-	-	-	-	-	-	-	-	-	-
P130(※3)	-	46	-	〇	-	-	-	-	-	-	-	-	-	-	-	〇	-	-
P04	-	47	-	〇	〇	-	-	-	-	-	-	-	-	〇	〇	〇	-	-
P141	-	48	-	〇	〇	-	-	-	-	-	-	-	-	〇	〇	〇	-	-
P60	SCL	49	〇	〇	-	-	-	-	-	SCLA0	-	-	-	〇	〇	-	-	-
P61	SDA	50	〇	〇	-	-	-	-	-	SDAA0	-	-	-	〇	〇	-	-	-
P20(※1)	AREF	51	〇	〇	-	-	-	-	-	-	-	-	-	-	-	-	-	-
P147	A0	52	〇	〇	-	-	A0	-	-	-	-	-	-	〇	〇	〇	-	-
P23	A1	53	〇	〇	-	-	A1	-	-	-	-	-	-	〇	〇	〇	-	-
P22	A2	54	〇	〇	-	-	A2	-	-	-	-	-	-	〇	〇	〇	-	-
P01	A3	55	〇	〇	-	-	A3	-	-	-	-	-	-	〇	〇	〇	-	-
P00	A4	56	〇	〇	-	-	A4	-	-	-	-	-	-	〇	〇	〇	-	-
P120	A5	57	〇	〇	-	-	A5	-	-	-	-	-	-	〇	〇	〇	-	-
-	EVDD(IOREF)	-	〇	〇	〇	〇	-	-	-	-	-	-	-	-	-	-	-	-
-	RESET	-	〇	〇	-	-	-	-	-	-	-	-	-	-	-	-	-	-
-	3V3	-	〇	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
-	5V	-	〇	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
-	GND	-	〇	〇	〇	〇	-	-	-	-	-	-	-	-	-	-	-	-

• (※1) External reference voltage supply pin.
• (※2) Pin 20 (P137) is an input-only port, so the OUTPUT setting cannot be used.
• (※3) Pin 46 (P130) is an output-only port, so the INPUT setting cannot be used.

2. Functions

• The functions of the RL78/G24 Fast Prototyping Board are listed below.

No.	Name	Function
1	Digital IO	53 Digital input pins / 44 Digital input_pullup pins / 51 Digital output pins
2	Analog IO	6 Analog input pins
3	PWM	8 PWM output pins(※2)(※3)
4	Serial(UART)	3 Serial(UART) channels(※1)
5	Wire(I2C)	1 Wire(I2C) channel
6	Interrupt	13 Interrupt pins
7	Tone	8 Tone output pins(※2)(※3)
8	PulseIn	53 Pulse input pins
9	ShiftIn	51 Clock output pins / 53 Data input pins
10	ShiftOut	51 Clock output pins / 51 Data output pins
11	LED	2 on Board LED (pin 21 and pin 22)(※4)
12	User Switch	1 on Board User Switch (pin 20)(※5)

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

• (※2) Simultaneous use of PWM/Tone is not allowed between pins using Timer RD2.

• (※3) Simultaneous use of PWM/Tone is not allowed between pins using Timer KB32.

• (※4) LED1 (pin 21) and LED2 (pin 22) are pulled up on the circuit.

• (※5) User Switch (pin 20) 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/G24 Fast Prototyping Board has 53 Digital input pins and 44 Digital input_pullup pins and 51 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
0-17, 20-44, 47-50, 52-57	0-17, 21-40, 47, 48, 52, 55-57	0-17, 21-44, 46-48, 52-57	-

2-2. Analog IO(Analog Input)

• The RL78/G24 Fast Prototyping Board has 6 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.
• The reference voltage used for analog input is 5V by default. When analogReference(INTERNAL) is called, the reference voltage is the internal reference voltage (1.48V).

• Use A0 pin

val =analogRead(A0);

• The pins corresponding to analog input are as follows.

analog input pin	memo
A0-A5	-

2-3. PWM

• The RL78/G24 Fast Prototyping Board has 8 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, 5, 6, 9-13	-

2-4. Serial(UART)

• The RL78/G24 Fast Prototyping Board has 3 serial (UART) channels.
• The default transmit buffer size when using each channel is 256 bytes.
• The default receive buffer size when using each channel is 256 bytes.
• The pin assignments of the channels are as follows.

Channel	Transmit pin	Receive pin	memo
Serial	35	34	Connect to Micro USB port via USB-Serial Converter when J14 is open-circuit
Serial1	1	0	-
Serial2	24	25	-

2-5. Wire(I2C)

• The RL78/G24 Fast Prototyping Board has one wire (I2C) channel.
• The pin assignments of the channels are as follows.

Channel	Data pin	Clock pin	memo
Wire	50(SDA)	49(SCL)

2-6. Interrupt

• The RL78/G24 Fast Prototyping Board has 13 external interrupt pins.
• The correspondences between external interrupt numbers and pins are as follows.

Interrupt No.	Interrupt pin	memo
0	2	-
1	4	-
2	5	-
3	7	-
4	14	-
5	15	-
6	20(SW)	-
7	24	-
8	25	-
9	36	-
10	37	-
11	38	-
12	39	-

2-7. Tone

• The RL78/G24 Fast Prototyping Board has 8 tone output pins.
• The correspondences between tone outputs and pins are as follows.

Tone output pin	memo
3, 5, 6, 9-13	-

2-8. PulseIn

• The RL78/G24 Fast Prototyping Board has 53 pulse input pins corresponding to pulseIn().
• The pins corresponding to pulseIn() are as follows.

Pulse input pin	memo
0-17, 20-44, 47-50, 52-57	-

2-9. ShiftIn

• The RL78/G24 Fast Prototyping Board has 51 clock output pins and 53 data input pins corresponding to shiftIn().
• The pins corresponding to shiftIn() are as follows.

Clock pin	Data pin	memo
0-17, 21-44, 46-48, 52-57	0-17, 20-44, 47-50, 52-57

2-10. ShiftOut

• The RL78/G24 Fast Prototyping Board has 51 clock output pins and 51 data output pins corresponding to shiftOut().
• The pins corresponding to shiftOut() are as follows.

Clock pin	Data pin	memo
0-17, 21-44, 46-48, 52-57	0-17, 21-44, 46-48, 52-57

2-11. LED

• The RL78/G24 Fast Prototyping Board has two LEDs mounted on it.
• The pins connected to the LEDs are as follows.

Name	pin	memo
LED1	21	-
LED2	22	-

2-12. User Switch

• The RL78/G24 Fast Prototyping Board has one user switch.
• The pin connected to the user switch is as follows.

Name	pin	memo
SW1	20	-