RL78G23 64pin Fast Prototyping Board

RL78/G23-64p Fast Prototyping Board

Description

• The RL78/G23-64p Fast Prototyping Board is provided with interface pins for Arduino Uno conversion.

1. pinlist

• A pin list of the RL78/G23-64p Fast Prototyping Board is shown below.

RL78/G23 port Number	Pin Name	Arduino Pin Number(Digital IO)	Arduino Uno I/F	MCU header	Grove I/F	Analog IO	PWM	Serial(※4)	Wire	SPI(※4)	Interrupt	Tone	Pulse	ShiftIn/ShiftOut	LED	User Switch
P03	IO0	0	〇		-	A0	-	RXD1	-	-	-	-	〇	〇	-	-
P02	IO1	1	〇		-	A7	-	TXD1	-	-	-	-	〇	〇	-	-
P43	IO2	2	〇		-	-	-	-	-	-	-	-	〇	〇	-	-
P42	IO3	3	〇		-	-	〇	-	-	-	-	〇	〇	〇	-	-
P77	IO4	4	〇		-	-	-	-	-	-	0	-	〇	〇	-	-
P41	IO5	5	〇		-	-	〇	-	-	-	-	〇	〇	〇	-	-
P31	IO6	6	〇		-	-	〇	-	-	-	1	〇	〇	〇	-	-
P76	IO7	7	〇		-	-	-	-	-	-	2	-	〇	〇	-	-
P73	IO8	8	〇		-	-	-	-	-	-	-	-	〇	〇	-	-
P06	IO9	9	〇		-	-	〇	-	-	-	-	〇	〇	〇	-	-
P05	IO10	10	〇		-	-	〇	-	-	SS	-	〇	〇	〇	-	-
P51	IO11	11	〇		-	-	〇	-	-	MOSI	3	〇	〇	〇	-	-
P50	IO12	12	〇		-	-	-	-	-	MISO	4	-	〇	〇	-	-
P30	IO13	13	〇		-	-	-	-	-	SCK	5	-	〇	〇	-	-
P40	-	14	-	〇	-	-	-	-	-	-	-	-	〇	〇	-	-
P52	-	15	-	〇	-	-	-	-	-	-	-	-	〇	〇	LED2	-
P53	-	16	-	〇	-	-	-	-	-	-	-	-	〇	〇	LED1	-
P54	-	17	-	〇	-	-	-	-	-	-	-	-	〇	〇	-	-
P55	-	18	-	〇	-	-	-	-	-	-	-	-	〇	〇	-	-
P70	-	19	-	〇	-	-	-	-	-	-	-	-	〇	〇	-	-
P71	-	20	-	〇	-	-	-	-	-	-	-	-	〇	〇	-	-
P72	-	21	-	〇	-	-	-	-	-	-	-	-	〇	〇	-	-
P74	-	22	-	〇	-	-	-	-	-	-	-	-	〇	〇	-	-
P75	-	23	-	〇	-	-	-	-	-	-	-	-	〇	〇	-	-
P121	-	24	-	〇	-	-	-	-	-	-	-	-	〇	〇	-	-
P122	-	25	-	〇	-	-	-	-	-	-	-	-	〇	〇	-	-
P137	-	26	-	〇	-	-	-	-	-	-	6	-	〇	〇	-	SW1
P123	-	27	-	〇	-	-	-	-	-	-	-	-	〇	〇	-	-
P124	-	28	-	〇	-	-	-	-	-	-	-	-	〇	〇	-	-
P120	-	29	-	〇	-	A8	-	-	-	-	-	-	〇	〇	-	-
P04	-	30	-	〇	-	-	-	-	-	-	-	-	〇	〇	-	-
P17	-	31	-	〇	-	-	-	-	-	-	-	〇	〇	〇	-	-
P16	-	32	-	〇	-	-	〇	-	-	-	-	〇	〇	〇	-	-
P15	-	33	-	〇	-	-	-	-	-	-	-	-	〇	〇	-	-
P14	-	34	-	〇	-	-	-	RXD2	-	-	-	-	〇	〇	-	-
P13	-	35	-	〇	-	-	-	TXD2	-	-	-	-	〇	〇	-	-
P12	-	36	-	〇	-	-	-	TXD0(※1)	-	-	-	-	〇	〇	-	-
P11	-	37	-	〇	-	-	-	RXD0(※1)	-	-	-	-	〇	〇	-	-
P10	-	38	-	〇	-	-	-	-	-	-	-	-	〇	〇	-	-
P146	-	39	-	〇	-	-	-	-	-	-	-	-	〇	〇	-	-
P147	-	40	-	〇	-	A9	-	-	-	-	-	-	〇	〇	-	-
P21	-	41	-	〇	-	-	-	-	-	-	-	-	〇	〇	-	-
P130	-	42	-	〇	-	-	-	-	-	-	-	-	〇	〇	-	-
P01	-	43	-	〇	-	-	-	-	-	-	-	-	〇	〇	-	-
P00	-	44	-	〇	-	-	-	-	-	-	-	-	〇	〇	-	-
P141	-	45	-	〇	-	-	-	-	-	-	-	-	〇	〇	-	-
P140	-	46	-	〇	-	-	-	-	-	-	-	-	〇	〇	-	-
P60	SCL	47	〇		-	-	-	-	SCL0	-	-	-	-	-	-	-
P61	SDA	48	〇		-	-	-	-	SDA0	-	-	-	-	-	-	-
P62	-	49	-		〇	-	-	-	SCL1(※2)	-	-	-	-	-	-	-
P63	-	50	-		〇	-	-	-	SDA1(※2)	-	-	-	-	-	-	-
P22	A0	51	〇		-	A0	-	-	-	-	-	-	〇	〇	-	-
P23	A1	52	〇		-	A1	-	-	-	-	-	-	〇	〇	-	-
P24	A2	53	〇		-	A2	-	-	-	-	-	-	〇	〇	-	-
P25	A3	54	〇		-	A3	-	-	-	-	-	-	〇	〇	-	-
P26	A5	55	〇		-	A4	-	-	-	-	-	-	〇	〇	-	-
P27	A6	56	〇		-	A5	-	-	-	-	-	-	〇	〇	-	-
-	-	IOREF	〇		-	-	-	-	-	-	-	-	-	-	-	-
RESET	-	RESET	〇		-	-	-	-	-	-	-	-	-	-	-	-
-	-	3V3	〇		-	-	-	-	-	-	-	-	-	-	-	-
-	-	5V	〇		-	-	-	-	-	-	-	-	-	-	-	-
GND	-	GND	〇		-	-	-	-	-	-	-	-	-	-	-	-
-	-	VIN	〇		-	-	-	-	-	-	-	-	-	-	-	-
P20	-	REF	〇		-	〇(※3)	-	-	-	-	-	-	-	-	-	-

• (※1) Connection to USB-serial converter
• (※2) Connection to Grove connector
• (※3) External reference voltage supply pin
• (※4) The Serial1 (RXD1 or TXD1) channel and SPI channel cannot be used simultaneously.

2. Functions

• The functions of the RL78/G23-64p Fast Prototyping Board are listed below.

No.	Name	Function
1	Digital IO	57 Digital Input/output pins
2	Analog IO	8 Analog Input pins
3	PWM	6 PWM Output pins
4	Serial(UART)	3 Serial(UART) channels(※1)(※3)
5	Wire(I2C)	2 Wire(I2C) channels(※2)
6	SPI	1 SPI channels(※3)
7	Interrupt	7 Interrupt pins
8	Tone	6 Tone Output pins
9	Pulse	53 Pulse Input/Output pins
10	ShiftIn/ShitOut	52(26pair) shiftIn/ShiftOut pins
11	LED	2 on Board LED (pin 15 and pin 16)
12	User Switch	1 on Board User Switch (pin 26)

• (※1) One serial channel (Serial) connects to a Micro-USB connector via a USB-serial converter.
• (※2) One wire channel (Wire1) connects to a Grove connector.
• (※3) The Serial1 (RXD1 or TXD1) channel and SPI channel cannot be used simultaneously.
• Refer to the following link for reference on the various functions.
• Arduino Reference - Arduino Reference

2-1. Digital IO

• The RL78/G23-64p Fast Prototyping Board has 57 digital inputs and outputs.
• In order to use digital I/O, it is necessary to first configure pin direction settings using pinMode().

• 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
  0-56

2-2. Analog IO(Analog Input)

• The RL78/G23-64p Fast Prototyping Board has eight 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/G23-64p Fast Prototyping Board has six 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	-
10	-
11	-

2-4. Serial(UART)

• The RL78/G23-64p Fast Prototyping Board has three serial (UART) channels.
• 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
Serial	36	37	Connect to Micro USB port via USB-Serial Converter when J13 is open-circuit
Serial1	1	0	Serial1 cannot be used simultaneously with the SPI channel.
Serial2	35	34	-

2-5. Wire(I2C)

• The RL78/G23-64p Fast Prototyping Board has two wire (I2C) channels.
• 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	48	47	-
Wire1	50	49	Connected to Grove interface.

2-6. SPI

• The RL78/G23-64p Fast Prototyping Board has one SPI channel.
• The SPI channel cannot be used simultaneously with the Serial1 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	Serial1 cannot be used simultaneously with the SPI channel.

2-7. Interrupt

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

Interrupt No.	Interrupt pin	memo
0	4	-
1	6	-
2	7	-
3	11	-
4	12	-
5	13	-
6	26	-

2-8. Tone

• The RL78/G23-64p Fast Prototyping Board has six tone output pins.
• The correspondences between tone outputs and pins are as follows.

Tone output pin	memo
3	-
5	-
6	-
9	-
10	-
11	-

2-9. Pulse

• The RL78/G23-64p Fast Prototyping Board has 53 pulse input/output pins.
• The correspondences between pulse inputs/outputs and pins are as follows.

Pulse input/output pin	memo
0-13,15-46,A0-A5

2-10. ShiftIn/ShiftOut

• The RL78/G23-64p Fast Prototyping Board has 52 shift input/output pins (26 pairs).
• The correspondences between shift inputs/outputs and pins are as follows.

Clock pin	Data pin	memo
0-13,15-46,A0-A5	0-13,15-46,A0-A5

2-11. LED

• The RL78/G23-64p Fast Prototyping Board has two LEDs mounted on it.
• The pins connected to the LEDs are as follows.

Name	pin	memo
LED1	16	-
LED2	15	-

2-12. User Switch

• The RL78/G23-64p Fast Prototyping Board has one user switch.
• The pin connected to the user switch is as follows.

Name	pin	memo
SW1	26	-