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
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.