R01UH0822EJ0100 Rev.1.00
Page 300 of 1041
Jul 31, 2019
RX13T Group
17. I/O Ports
17.3.4
Port Mode Register (PMR)
m = 1 to 3, 7, 9, A, B, D, E
Each bit of PORTm.PMR corresponds to each pin of port m; pin function can be specified in 1-bit units.
Bits corresponding to port m on the 48 pin-product but which do not exist on a product with fewer than 48 pins are
reserved. Write 0 to these bits.
The bit corresponding to a pin that does not exist is reserved. A reserved bit is read as 0. The write value should be 0.
Address(es): PORT1.PMR 0008 C061h, PORT2.PMR 0008 C062h, PORT3.PMR 0008 C063h, PORT7.PMR 0008 C067h,
PORT9.PMR 0008 C069h, PORTA.PMR 0008 C06Ah, PORTB.PMR 0008 C06Bh, PORTD.PMR 0008 C06Dh,
PORTE.PMR 0008 C06Eh
b7
b6
b5
b4
b3
b2
b1
b0
B7
B6
B5
B4
B3
B2
B1
B0
Value after reset:
0
0
0
0
0
0
0
0
Bit
Symbol
Bit Name
Description
R/W
b0
Pm0 Pin Mode Control
0: Use pin as general I/O port.
1: Use pin as I/O port for peripheral
functions.
R/W
b1
Pm1 Pin Mode Control
R/W
b2
Pm2 Pin Mode Control
R/W
b3
Pm3 Pin Mode Control
R/W
b4
Pm4 Pin Mode Control
R/W
b5
Pm5 Pin Mode Control
R/W
b6
Pm6 Pin Mode Control
R/W
b7
Pm7 Pin Mode Control
R/W