R01UH0823EJ0100 Rev.1.00 Page 1703 of 1823
Jul 31, 2019
RX23W Group 50. Flash Memory (FLASH)
Table 50.9 Pin Handling in Boot Mode (USB Interface) in Bus-Powered Mode
Pin Name Name I/O Function
VCC, VSS Power supply — Input the voltage between 3.0 V and 3.6 V to the VCC pin.
Input 0 V to the VSS pin.
VCC_USB, VSS_USB USB power supply — Connect the VCC_USB pin to the VCC pin.
Connect the VSS_USB pin to the VSS pin.
AVCC0, AVSS0 12-bit A/D converter power
supply
— Connect the AVCC0 pin to the VCC pin.
Connect the AVSS0 pin to the VSS pin.
VCL Decoupling capacitor connect
pin
— Connect to the VSS pin via a decoupling capacitor for stabilizing
the internal voltage.
XTAL, EXTAL Main clock I/O pin I/O Connect a 4, 6, 8, 12, or 16 MHz crystal or ceramic resonator or
oscillator.
MD Operating mode control Input Input low.
PC7/UB Operating mode control Input Input high.*
1
P35/UPSEL USB power mode control Input Input high.
RES# Reset input Input Reset pin. Connect to the reset circuit.
USB0_DP USB on-chip transceiver D+
I/O pin
I/O Connect to the circuit described in section 32, USB 2.0
Host/Function Module (USBc).
USB0_DM USB on-chip transceiver D–
I/O pin
I/O Connect to the circuit described in section 32, USB 2.0
Host/Function Module (USBc).
P16/USB0_VBUS USB cable connection
monitor pin
Input Connect to the USB0_VBUS pin to the VCC pin.
Note 1. Maintain the input level for 2 ms or longer after a reset is released.
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