Renesas RA Microcontrollers EK-RA4M1 v1 – User's Manual
R20UT4579EU0100 Rev.1.00 Page 14 of 32
Oct.02.19
5.3 Main Components
• Main MCU
Renesas RA4M1 MCU device, part number R7FA4M1AB3CFP (U1)
• J-Link MCU
Renesas Synergy™ S124 MCU device, part number R7FS124773A01CFM#AA0 (U2)
• USB Connectors
FCI, part number 10118192-0001LF (J9, J11)
• Micro USB 2.0 Female connector
• Primary communication with Main MCU and J-Link MCU
• Push-Buttons
C&K, part number PTS645SM43SMTR92 LFS (S1, S2)
• Momentary push-button switch
• Used for system reset and user defined functions
• LDO Regulator
Diodes Inc., part number AP7215-33YG-13 (U3)
• Low-drop out linear regulator
• Generates system 3.3 V from J-Link USB 5 V input
• PMOD A Connector
Samtec, part number SSW-106-02-F-D-RA (J5)
• 12-pin right angle connector for PMOD A
• PMOD B Connector
Samtec, part number SSW-106-02-FM-S-RA (J6)
• 6-pin right angle connector for PMOD B
• Pin Headers
Sullins, part number PRPC020DAAN-RC (J1, J2, J3, J4)
• 40 position pin header, 0.1” pitch
• Provides signal breakout and access for Main MCU signals
• System LED
Dialight, part number 598-8610-207F (LED2)
• Dual color red/green LED
• System status indicator for power and J-Link status
• User LED
Lite-On, part number LTST-C191KRKT (LED1)
• User defined
• Single color red LED as needed for user environment
• User Potentiometer
Bourns, part number 3352T-1-1-3LF (POT1)
• User defined
• Provides variable resistance as needed for user environment
• Not populated by default
5.4 Connectivity and Settings
Throughout this section, feature configuration using copper jumpers is described. See section 4.1.1, Copper
Jumpers for information on using copper jumpers.
5.4.1 Device USB
The DEVICE USB Micro-B connection jack connects the Main MCU to an external USB
Host, FS capable, allowing communications for testing and use of the Main MCU firmware.
Power for the board cannot be received from this connector. The DEVICE USB interface
can detect the presence of power from the USB Host PC. USB Host power received at the
DEVICE USB interface is not connected to the 5 V power bus.
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