RL78G22 Fast Prototyping Board pin list

RL78/G22 Fast Prototyping Board

Description

• The RL78/G22 Fast Prototyping Board is provided with interface pins for Arduino Uno conversion.

1. pinlist

• A pin list of the RL78/G22 Fast Prototyping Board is shown below.

RL78/G22 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
P01	IO0	0	〇	-	-	-	-	RXD1	-	-	-	-	-	〇	-	-
P00	IO1	1	〇	-	-	-	-	TXD1	-	-	-	-	-	〇	-	-
P140	IO2	2	〇	-	-	-	-	-	-	-	6	-	-	〇	-	-
P31	IO3	3	〇	-	-	-	〇	-	-	-	4	〇	〇	〇	-	-
P120	IO4	4	〇	-	-	-	-	-	-	-	-	-	-	〇	-	-
P41	IO5	5	〇	-	-	-	〇	-	-	-	-	〇	〇	〇	-	-
P10	IO6	6	〇	-	-	-	-	-	-	-	-	-	-	〇	-	-
P146	IO7	7	〇	-	-	-	-	-	-	-	-	-	-	〇	-	-
P30	IO8	8	〇	-	-	-	-	-	-	-	-	-	-	〇	-	-
P17	IO9	9	〇	-	-	-	-	-	-	-	-	〇	〇	〇	-	-
P16	IO10	10	〇	-	-	-	〇	-	-	-	5	〇	〇	〇	-	-
P13	IO11	11	〇	-	-	-	-	-	-	MOSI	-	-	-	〇	-	-
P14	IO12	12	〇	-	-	-	-	-	-	MISO	-	-	-	〇	-	-
P15	IO13	13	〇	-	-	-	-	-	-	SCK	-	-	-	〇	-	-
P62	-	14	-	〇	-	-	-	-	-	-	-	-	-	〇	LED1	-
P63	-	15	-	〇	-	-	-	-	-	-	-	-	-	〇	LED2	-
P75	-	16	-	〇	-	-	-	-	-	-	-	-	-	〇	-	-
P74	-	17	-	〇	-	-	-	-	-	-	-	-	-	〇	-	-
P73	-	18	-	〇	-	-	-	-	-	-	-	-	-	〇	-	-
P72	-	19	-	〇	-	-	-	-	-	-	-	-	-	〇	-	-
P71	-	20	-	〇	-	-	-	-	-	-	-	-	-	〇	-	-
P70	-	21	-	〇	-	-	-	-	-	-	-	-	-	〇	-	-
P50	-	22	-	〇	-	-	-	-	-	-	-	-	-	〇	-	-
P51	-	23	-	〇	-	-	-	-	-	-	-	-	-	〇	-	-
P12	-	24	-	〇	-	-	-	-	-	-	-	-	-	〇	-	-
P11	-	25	-	〇	-	-	-	-	-	-	-	-	-	〇	-	-
P22	-	26	-	〇	-	-	-	-	-	-	-	-	-	〇	-	-
P21	-	27	-	〇	-	-	-	-	-	-	-	-	-	〇	-	-
P130	-	28	-	〇	-	-	-	-	-	-	-	-	-	〇	-	-
P40	-	29	-	〇	-	-	-	-	-	-	-	-	-	〇	-	-
P124	-	30	-	〇	-	-	-	-	-	-	-	-	-	〇	-	-
P123	-	31	-	〇	-	-	-	-	-	-	-	-	-	〇	-	-
P137	-	32	-	〇	-	-	-	-	-	-	0	-	-	〇	-	〇
P122	-	33	-	〇	-	-	-	-	-	-	-	-	-	〇	-	-
P121	-	34	-	〇	-	-	-	-	-	-	-	-	-	〇	-	-
P60	SCL	35	〇	-	〇	-	-	-	-	-	-	-	-	-	-	-
P61	SDA	36	〇	-	〇	-	-	-	-	-	-	-	-	-	-	-
P147	A0	37	〇	-	-	A0	-	-	-	-	-	-	-	〇	-	-
P27	A1	38	〇	-	-	A1	-	-	-	-	-	-	-	〇	-	-
P26	A2	39	〇	-	-	A2	-	-	-	-	-	-	-	〇	-	-
P25	A3	40	〇	-	-	A3	-	-	-	-	-	-	-	〇	-	-
P24	A4	41	〇	-	-	A4	-	-	-	-	-	-	-	〇	-	-
P23	A5	42	〇	-	-	A5	-	-	-	-	-	-	-	〇	-	-
P20	-	AREF	〇(※1)	-	-	-	-	-	-	-	-	-	-	-	-	-
VDD	-	IOREF	〇	-	〇	-	-	-	-	-	-	-	-	-	-	-
RESET	-	RESET	〇	-	-	-	-	-	-	-	-	-	-	-	-	-
-	-	3V3	〇	-	-	-	-	-	-	-	-	-	-	-	-	-
-	-	5V	〇	-	-	-	-	-	-	-	-	-	-	-	-	-
GND	-	GND	〇	-	〇	-	-	-	-	-	-	-	-	-	-	-
-	-	VIN	〇	-	-	-	-	-	-	-	-	-	-	-	-	-

(※1) External reference voltage supply pin

2. Functions

• The functions of the RL78/G22 Fast Prototyping Board are listed below.

No.	Name	Function
1	Digital IO	14 Digital Input/output pins
2	Analog IO	6 Analog Input pins
3	PWM	3 PWM Output pins
4	Serial(UART)	1 Serial(UART) channels(※1)
5	Wire(I2C)	0 Wire(I2C) channels
6	Interrupt	4 Interrupt pins
7	Tone	4 Tone Output pins
8	Pulse	4 Pulse Input/Output pins
9	ShiftIn/ShitOut	40(20pair) shiftIn/ShiftOut pins
10	LED	2 on Board LED (pin 14 and pin 15)
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/G22 Fast Prototyping Board has 14 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
  0-13

2-2. Analog IO(Analog Input)

• The RL78/G22 Fast Prototyping Board has 6 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	-
A3	-
A4	-
A5	-

2-3. PWM

• The RL78/G22 Fast Prototyping Board has 3 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 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, 5, 10	-

2-4. Serial(UART)

• The RL78/G22 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/G22 Fast Prototyping Board has 0 wire (I2C) channel.
• The pin assignments of the channels are as follows.

Channel	Data pin	Clock pin	memo
Wire	-	-	-

2-6. Interrupt

• 4 channels have 4 external interrupt pins.
• The correspondences between external interrupt numbers and pins are as follows.

Interrupt No.	Interrupt pin	memo
0	32	-
4	3	-
5	5	-
6	1	-

2-7. Tone

• The RL78/G22 Fast Prototyping Board has 4 tone output pins.
• The correspondences between tone outputs and pins are as follows.

Tone output pin	memo
3	-
5	-
9	-
10	-

2-8. Pulse

• The RL78/G22 Fast Prototyping Board has 4 pulse input/output pins.
• The correspondences between pulse inputs/outputs and pins are as follows.

Pulse input/output pin	memo
3	-
5	-
9	-
10	-

2-9. ShiftIn/ShiftOut

• The RL78/G22 Fast Prototyping Board has 40 shift input/output pins (20 pairs).
• The correspondences between shift inputs/outputs and pins are as follows.

Clock pin	Data pin	memo
0-34, 37-42	0-34, 37-42

2-10. LED

• The RL78/G22 Fast Prototyping Board has two LEDs mounted on it.
• The pins connected to the LEDs are as follows.

Name	pin	memo
LED1	14	-
LED2	15	-

2-11. User Switch

• TheRL78/G22 Fast Prototyping Board has one user switch.
• The pin connected to the user switch is as follows.

Name	pin	memo
SW1	32	-