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© 2022 ROHM Co., Ltd.
No. 64UG118E Rev.002
Feb.2022
User’s Guide
5
Appendix
5.1
RKX-A3-EVK-001 Detailed Diagram
For detailed information of the hardware, please refer to the ROHM EVK HW User's Guide.
Figure 88. RKX-A3-EVK-001 Main Features
Table 2. RKX-A3-EVK-001 Main Features
1
TP4 - Test Point 4 for VBUS (Host) input voltage measurement 12 TP1 - Test Point 1 for GND reference voltage measurements
2
LED2 - Orange LED is ON when VDD_SENSOR voltage is ON 13 J9 - Raspberry Pi 6-pin debug header
3
SW4 - Switch that connects VDD_SENSOR to
VBUS/VR1_OUT
14 J8 - Raspberry Pi 40-pin dual-row header
4
LED1 - Green LED is ON when VBUS (Host) Voltage is provided 15 J15 - Infineon CY8CKIT-059 compatible header
5
SW1 - VDD_SENSOR select switch (VBUS or VR1_OUT)
16 J14 - Infineon CY8CKIT-059 compatible header
6. J7 / R64 - VDD_Sensor current measurement header/bypass. 17 J4 - Arduino UNO R3 Compatible Digital Header (bottom mount)
7
SW3 - IO_VDD Select switch (VDD_SENSOR of VR2_OUT) 18 J6 - ROHM EVK EVB compatible header
8
SW2 - 7-position rotary switch to configure VR1_OUT voltage:
1 = 3.3V, 2 = 3.0V, 3 = 2.8V, 4 = 2.5V, 5 = 1.8V, 6 = 1.7V, 7 = 3.6V
19 J10 - ROHM Sensor Module 5-Pin Digital / 4-Pin Analog Header
9
TP3 - Test Point 3 for VDD_SENSOR voltage measurement. 20 J3 – Arduino UNO R3 Compatible Digital Header (bottom mount)
10 J1 - Arduino UNO R3 Compatible Power Header (bottom mount) 21 J11 - ROHM 7-Pin Digital Sensor (SPI) Header
11
J2 - Arduino UNO R3 Compatible Analog Header (bottom mount,
even-numbered pins).
22 J5 - ROHM EVK EVB ribbon cable compatible header