RL78G23 64pin Fast Prototyping Board

RL78/G23 Fast Prototyping Board

Description

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

1. pinlist

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

RL78/G23 port Number	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	0	〇		-	A0	-	RXD1	-	-	-	-	-	〇	-	-
P02	1	〇		-	A7	-	TXD1	-	-	-	-	-	〇	-	-
P43	2	〇		-	-	-	-	-	-	-	-	-	〇	-	-
P42	3	〇		-	-	-	-	-	-	0	〇	〇	〇	-	-
P77	4	〇		-	-	-	-	-	-	-	-	-	〇	-	-
P41	5	〇		-	-	〇	-	-	-	-	〇	〇	〇	-	-
P31	6	〇		-	-	〇	-	-	-	1	〇	〇	〇	-	-
P76	7	〇		-	-	-	-	-	-	2	-	-	〇	-	-
P73	8	〇		-	-	-	-	-	-	-	-	-	〇	-	-
P06	9	〇		-	-	-	-	-	-	-	〇	〇	〇	-	-
P05	10	〇		-	-	〇	-	-	SS	-	〇	〇	〇	-	-
P51	11	〇		-	-	-	-	-	MOSI	3	-	-	〇	-	-
P50	12	〇		-	-	-	-	-	MISO	4	-	-	〇	-	-
P30	13	〇		-	-	-	-	-	SCK	5	-	-	〇	-	-
P20	14	-		-	〇(※3)	-	-	-	-	-	-	-	-	-	-
P52	15	-	〇	-	-	-	-	-	-	-	-	-	〇	LED2	-
P53	16	-	〇	-	-	-	-	-	-	-	-	-	〇	LED1	-
P54	17	-	〇	-	-	-	-	-	-	-	-	-	〇	-	-
P55	18	-	〇	-	-	-	-	-	-	-	-	-	〇	-	-
P70	19	-	〇	-	-	-	-	-	-	-	-	-	〇	-	-
P71	20	-	〇	-	-	-	-	-	-	-	-	-	〇	-	-
P72	21	-	〇	-	-	-	-	-	-	-	-	-	〇	-	-
P74	22	-	〇	-	-	-	-	-	-	-	-	-	〇	-	-
P75	23	-	〇	-	-	-	-	-	-	-	-	-	〇	-	-
P121	24	-	〇	-	-	-	-	-	-	-	-	-	〇	-	-
P122	25	-	〇	-	-	-	-	-	-	-	-	-	〇	-	-
P137	26	-	〇	-	-	-	-	-	-	-	-	-	〇	-	SW1
P123	27	-	〇	-	-	-	-	-	-	-	-	-	〇	-	-
P124	28	-	〇	-	-	-	-	-	-	-	-	-	〇	-	-
P120	29	-	〇	-	A8	-	-	-	-	-	-	-	〇	-	-
P04	30	-	〇	-	-	-	-	-	-	-	-	-	〇	-	-
P17	31	-	〇	-	-	-	-	-	-	-	〇	〇	〇	-	-
P16	32	-	〇	-	-	〇	-	-	-	-	〇	〇	〇	-	-
P15	33	-	〇	-	-	-	-	-	-	-	-	-	〇	-	-
P14	34	-	〇	-	-	-	RXD2	-	-	-	-	-	〇	-	-
P13	35	-	〇	-	-	-	TXD2	-	-	-	-	-	〇	-	-
P12	36	-	〇	-	-	-	TXD0(※1)	-	-	-	-	-	〇	-	-
P11	37	-	〇	-	-	-	RXD0(※1)	-	-	-	-	-	〇	-	-
P10	38	-	〇	-	-	-	-	-	-	-	-	-	〇	-	-
P146	39	-	〇	-	-	-	-	-	-	-	-	-	〇	-	-
P147	40	-	〇	-	A9	-	-	-	-	-	-	-	〇	-	-
P21	41	-	〇	-	-	-	-	-	-	-	-	-	〇	-	-
P130	42	-	〇	-	-	-	-	-	-	-	-	-	〇	-	-
P01	43	-	〇	-	-	-	-	-	-	-	-	-	〇	-	-
P00	44	-	〇	-	-	-	-	-	-	-	-	-	〇	-	-
P141	45	-	〇	-	-	-	-	-	-	-	-	-	〇	-	-
P140	46	-	〇	-	-	-	-	-	-	-	-	-	〇	-	-
P60	47	〇		-	-	-	-	SCL0	-	-	-	-	-	-	-
P61	48	〇		-	-	-	-	SDA0	-	-	-	-	-	-	-
P62	49	-		〇	-	-	-	SCL1(※2)	-	-	-	-	-	-	-
P63	50	-		〇	-	-	-	SDA1(※2)	-	-	-	-	-	-	-
P22	51	〇		-	A0	-	-	-	-	-	-	-	〇	-	-
P23	52	〇		-	A1	-	-	-	-	-	-	-	〇	-	-
P24	53	〇		-	A2	-	-	-	-	-	-	-	〇	-	-
P25	54	〇		-	A3	-	-	-	-	-	-	-	〇	-	-
P26	55	〇		-	A4	-	-	-	-	-	-	-	〇	-	-
P27	56	〇		-	A5	-	-	-	-	-	-	-	〇	-	-
-	IOREF	〇		-	-	-	-	-	-	-	-	-	-	-	-
RESET	RESET	〇		-	-	-	-	-	-	-	-	-	-	-	-
-	3V3	〇		-	-	-	-	-	-	-	-	-	-	-	-
-	5V	〇		-	-	-	-	-	-	-	-	-	-	-	-
GND	GND	〇		-	-	-	-	-	-	-	-	-	-	-	-
-	VIN	〇		-	-	-	-	-	-	-	-	-	-	-	-

• (※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 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	4 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	6 Interrupt pins
8	Tone	7 Tone Output pins
9	Pulse	7 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 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 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 Fast Prototyping Board has four 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 anaglogPinFrequency() to set the frequency, then use analogWrite() to generate PWM output.
• The pins corresponding to PWM output are as follows.

PWM output pin	memo
4	-
5	-
10	-
32	-

2-4. Serial(UART)

• The RL78/G23 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
Serial1	1	0	If use SPI channel,Serial1 can not use.
Serial2	35	34	-

2-5. Wire(I2C)

• The RL78/G23 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	Connect Grove I/F

2-6. SPI

• The RL78/G23 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.

annel	Chip Select pin	Data out pin	Data in pin	Clock pin	memo
SPI	10	11	12	13	If use Serial1 channel,SPI can not use.

2-7. Interrupt

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

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

2-8. Tone

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

Tone output pin	memo
3	-
5	-
6	-
9	-
10	-
31	-
32	-

2-9. Pulse

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

Pulse output pin	memo
3	-
5	-
6	-
9	-
10	-
31	-
32	-

2-10. ShiftIn/ShiftOut

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

Name	pin	memo
SW1	26	-