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(※2)	Interrupt	Tone	Pulse	ShiftIn/ShiftOut	LED	User Switch
P01	IO0	0	〇	-	-	-	-	RXD1	-	-	-	-	〇	〇	-	-
P00	IO1	1	〇	-	-	-	-	TXD1	-	-	-	-	〇	〇	-	-
P140	IO2	2	〇	-	-	-	-	-	-	-	0	-	〇	〇	-	-
P31	IO3	3	〇	-	-	-	〇	-	-	-	1	〇	〇	〇	-	-
P120	IO4	4	〇	-	-	-	-	-	-	-	-	-	〇	〇	-	-
P41	IO5	5	〇	-	-	-	〇	-	-	-	-	〇	〇	〇	-	-
P10	IO6	6	〇	-	-	-	-	-	-	-	-	-	〇	〇	-	-
P146	IO7	7	〇	-	-	-	-	-	-	-	-	-	〇	〇	-	-
P30	IO8	8	-	-	-	-	-	-	-	-	-	-	-	-	-	-
P17	IO9	9	〇	-	-	-	〇	-	-	-	-	〇	〇	〇	-	-
P16	IO10	10	〇	-	-	-	〇	-	-	SS	2	〇	〇	〇	-	-
P13	IO11	11	〇	-	-	-	-	TXD2(※2)	-	MOSI	-	-	〇	〇	-	-
P14	IO12	12	〇	-	-	-	-	RXD2(※2)	-	MISO	-	-	〇	〇	-	-
P15	IO13	13	〇	-	-	-	-	-	-	SCK	-	-	〇	〇	-	-
P62	-	14	-	〇	-	-	-	-	-	-	-	-	〇	〇	LED1	-
P63	-	15	-	〇	-	-	-	-	-	-	-	-	〇	〇	LED2	-
P75	-	16	-	〇	-	-	-	-	-	-	-	-	〇	〇	-	-
P74	-	17	-	〇	-	-	-	-	-	-	-	-	〇	〇	-	-
P73	-	18	-	〇	-	-	-	-	-	-	-	-	〇	〇	-	-
P72	-	19	-	〇	-	-	-	-	-	-	-	-	〇	〇	-	-
P71	-	20	-	〇	-	-	-	-	-	-	-	-	〇	〇	-	-
P70	-	21	-	〇	-	-	-	-	-	-	-	-	〇	〇	-	-
P50	-	22	-	〇	-	-	-	-	-	-	-	-	〇	〇	-	-
P51	-	23	-	〇	-	-	-	-	-	-	-	-	〇	〇	-	-
P12	-	24	-	〇	-	-	-	TXD0	-	-	-	-	〇	〇	-	-
P11	-	25	-	〇	-	-	-	RXD0	-	-	-	-	〇	〇	-	-
P22	-	26	-	〇	-	-	-	-	-	-	-	-	-	-	-	-
P21	-	27	-	〇	-	-	-	-	-	-	-	-	-	-	-	-
P130	-	28	-	〇	-	-	-	-	-	-	-	-	〇	〇	-	-
P40	-	29	-	〇	-	-	-	-	-	-	-	-	〇	〇	-	-
P124	-	30	-	-	-	-	-	-	-	-	-	-	-	-	-	-
P123	-	31	-	-	-	-	-	-	-	-	-	-	-	-	-	-
P137	-	32	-	〇	-	-	-	-	-	-	3	-	〇	〇	-	〇
P122	-	33	-	〇	-	-	-	-	-	-	-	-	〇	〇	-	-
P121	-	34	-	〇	-	-	-	-	-	-	-	-	〇	〇	-	-
P20	-	35(REF)	〇(※1)	-	-	-	-	-	-	-	-	-	-	-	-	-
P60	SCL	36	〇	-	〇	-	-	-	SCL0	-	-	-	-	-	-	-
P61	SDA	37	〇	-	〇	-	-	-	SDA0	-	-	-	-	-	-	-
P147	A0	38	〇	-	-	A0	-	-	-	-	-	-	〇	〇	-	-
P27	A1	39	〇	-	-	A1	-	-	-	-	-	-	〇	〇	-	-
P26	A2	40	-	-	-	-	-	-	-	-	-	-	-	-	-	-
P25	A3	41	-	-	-	-	-	-	-	-	-	-	-	-	-	-
P24	A4	42	-	-	-	-	-	-	-	-	-	-	-	-	-	-
P23	A5	43	-	-	-	-	-	-	-	-	-	-	-	-	-	-
VDD	-	IOREF	〇	-	〇	-	-	-	-	-	-	-	-	-	-	-
RESET	-	RESET	〇	-	-	-	-	-	-	-	-	-	-	-	-	-
-	-	3V3	〇	-	-	-	-	-	-	-	-	-	-	-	-	-
-	-	5V	〇	-	-	-	-	-	-	-	-	-	-	-	-	-
GND	-	GND	〇	-	〇	-	-	-	-	-	-	-	-	-	-	-
-	-	VIN	〇	-	-	-	-	-	-	-	-	-	-	-	-	-

(※1) External reference voltage supply pin (※2) Serial2(RXD2,TXD2) cannot be used simultaneously with the SPI channel.

2. Functions

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

No.	Name	Function
1	Digital IO	34 Digital Input/output pins
2	Analog IO	2 Analog Input pins
3	PWM	4 PWM Output pins
4	Serial(UART)	1 Serial(UART) channels(※1)
5	Wire(I2C)	1 Wire(I2C) channels
6	SPI	1 SPI channels
7	Interrupt	4 Interrupt pins
8	Tone	4 Tone Output pins
9	Pulse	34 Pulse Input/Output pins
10	ShiftIn/ShitOut	34(17pair) shiftIn/ShiftOut pins
11	LED	2 on Board LED (pin 14 and pin 15)
12	User Switch	1 on Board User Switch (pin 32)

• (※1) One serial channel (Serial) connects to a Micro-USB connector via a USB-serial converter.
• (※2) Serial2(RXD2,TXD2) cannot be used simultaneously with the SPI channel.
• 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 34 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
  0-7, 9-25, 28, 29, 32-34, 36-39

2-2. Analog IO(Analog Input)

• The RL78/G22 Fast Prototyping Board has 2 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	-

2-3. PWM

• The RL78/G22 Fast Prototyping Board has 4 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, 9, 10	-

2-4. Serial(UART)

• The RL78/G22 Fast Prototyping Board has 3 serial (UART) channels.
• A serial channel (Serial) is connected to a Micro-USB connector via a USB-serial converter.
• The Serial2 channel and SPI channel cannot be used simultaneously.
• The pin assignments of the channels are as follows.

Channel	Transmit pin	Receive pin	memo
Serial	24	25
Serial1	1	0
Serial2	11	12	Serial2 cannot be used simultaneously with the SPI channel.

2-5. Wire(I2C)

• The RL78/G22 Fast Prototyping Board has 1 wire (I2C) channel.
• The pin assignments of the channels are as follows.

Channel	Data pin	Clock pin	memo
Wire	37	36	-

2-6. SPI

• The RL78/G22 Fast Prototyping Board has one SPI channel.
• The SPI channel cannot be used simultaneously with the Serial2 channel.
• The pin assignment of the channel is as follows.

Channel	Chip Select pin	Data out pin	Data in pin	Clock pin	memo
SPI	10	11	12	13	Serial2 cannot be used simultaneously with the SPI channel.

2-7. Interrupt

• The RL78/G22 Fast Prototyping Board have 4 external interrupt pins.
• The correspondences between external interrupt numbers and pins are as follows.

Interrupt No.	Interrupt pin	memo
0	2	-
1	3	-
2	10	-
3	32	-

2-8. 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	-

2-9. Pulse

• The RL78/G22 Fast Prototyping Board has 34 pulse input/output pins.
• The correspondences between pulse inputs/outputs and pins are as follows.

Pulse input pin	memo
0-7, 9-25, 28, 29, 32-34, 36-39

2-10. ShiftIn/ShiftOut

• The RL78/G22 Fast Prototyping Board has 34 shift input/output pins (17 pairs).
• The correspondences between shift inputs/outputs and pins are as follows.

Clock pin	Data pin	memo
0-7, 9-25, 28, 29, 32-34, 36-39	0-7, 9-25, 28, 29, 32-34, 36-39

2-11. 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	-

2-12. 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	-