Renesas EK-RA4M3

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Renesas RA Family EK-RA4M3 v1 – User's Manual

R20UT4803EG0101 Rev 1.01 Page 6 of 29

Jan.06.21 Nov.09.20

Figure 2. EK-RA4M3 Board Bottom Side

1.1 Assumptions and Advisory Notes

1. It is assumed that the user has basic understanding of microcontrollers and embedded systems

hardware.

2. It is recommended that the user refers to the EK-RA4M3 Quick Start Guide to get acquainted with the kit

and the Quick Start example project that EK-RA4M3 board comes pre-programmed with.

3. Flexible Software Package (FSP) and Integrated Development Environment (IDE) such as e

studio are

required to develop embedded applications on EK-RA4M3 kit.

4. Instructions to download and install software, import example projects, build them and program the

EK-RA4M3 board are provided in the quick start guide.

Main Page

Table of Contents5
Kit Overview8
Figure 1. EK-RA4M3 Board Top Side9
Assumptions and Advisory Notes10
Figure 2. EK-RA4M3 Board Bottom Side10
Kit Contents11
Kit Ordering Information11
Figure 3. EK-RA4M3 Kit Contents11
Hardware Architecture and Default Configuration12
Kit Architecture12
Figure 4. EK-RA4M3 Board Functional Area Definitions12
System Block Diagram13
Figure 5. EK-RA4M3 Board Block Diagram13
Jumper Settings14
Copper Jumpers14
Traditional Pin Header Jumpers14
Default Jumper Configuration14
Figure 6. Copper Jumpers14
Table 1. Default Jumper Settings14
System Control and Ecosystem Access Area16
Figure 7. System Control and Ecosystem Access Area16
Power17
Power Supply Options17
Power Supply Considerations17
Power-Up Behavior17
Figure 8. Power Supply Options17
Debug and Trace18
Debug On-Board18
Table 2. Debug Modes18
Table 3. Jumper Connection Summary for Different Debug Modes18
Table 4. Debug USB Connector18
Debug in19
Figure 9. EK-RA4M3 Debug Interface19
Table 5. Debug On-Board Jumper Configuration19
Table 6. Debug in Mode Jumper Configuration19
Debug out20
Table 7. JTAG/SWD/TRACE Connector20
Table 8. JTAG/SWD Connector20
Ecosystem21
Seeed Grove ® Connectors21
Figure 10. Seeed Grove and Qwiic Connectors21
Table 9. Debug out Jumper Configuration21
Table 10. Grove 1 Connector21
Table 11. Grove 2 Connector21
Sparkfun Qwiic Connector22
Digilent Pmod™ Connectors22
Figure 11. Pmod 122
Table 12. Qwiic Connector22
Table 13. Pmod 1 Connector22
Figure 12. Pmod 1 Trace Cut Jumpers23
Table 14. Pmod 2 Connector23
Arduino™ Connector24
Figure 13. Pmod 224
Table 15. Arduino uno Connections24
Mikroelektronika™ Mikrobus Connector25
Figure 14. Arduino uno Connectors25
Table 16. Mikrobus Connections25
Connectivity26
USB Full Speed26
Figure 15. Mikrobus Connection26
Figure 16. USB Full Speed Connector26
Table 17. USB Full Speed Connector26
Miscellaneous27
User and Power Leds27
User and Reset Switches27
Figure 17. User Leds27
Figure 18. Power LED27
Table 18. EK-RA4M3 Board LED Functions27
Table 19. EK-RA4M3 Board Switches27
MCU Boot Mode28
Special Feature Access Area28
Quad-SPI Flash28
Figure 19. Reset and User Switches28
Figure 20. Boot Mode28
Figure 21. Special Feature Access Area28
Table 20. Quad-SPI Flash Port Assignments28
MCU Native Pin Access Area29
Figure 22. Quad-SPI Flash29
Figure 23. Native Pin Access Area29
Breakout Pin Headers30
MCU and USB Current Measurement30
Figure 24. RA USB Current Measurement Circuit30
Figure 25. RA +3.3 V Current Measurement Circuit30
Figure 26. RA MCU Current Measurement30
Certifications31
EMC/EMI Standards31
Material Selection, Waste, Recycling and Disposal Standards31
Safety Standards31
Design and Manufacturing Information32
Website and Support32
Table 21. EK-RA4M3 Board Design Package Contents32
Revision History33

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