R01UH0823EJ0100 Rev.1.00 Page 431 of 1823
Jul 31, 2019
RX23W Group 21. I/O Ports
Specifying input pull-up, open-drain output, switching of drive capacity, or 5-V tolerance is available for other signals on
pins that also function as general I/O pins.
Table 21.2 Port Functions
Port Pin Input Pull-up Open Drain Output Drive Capacity Switching 5-V Tolerant
PORT0 P03, P05, P07 — Fixed to normal output —
PORT1 P16, P17
P14, P15 —
PORT2 P21, P22, P25 to P27
—
PORT3 P30, P31
P35 ————
P36, P37
Fixed to normal output —
PORT4 P40 to P47
— Fixed to normal output —
PORTB PB0, PB1, PB3, PB7
—
PB5
PORTC PC0, PC2 to PC7 —
PORTD PD3
— —
PORTE PE0 to PE4
—
PORTJ PJ3
—