Renesas R-IN32M3 Series User Manual page 229

R-IN32M3-EC User's Manual
8.5.3 Port 4 Buffer Function Change Registers (DRCTLP4L, DRCTLP4H)
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9
DRCTLP4L 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0
R/W
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9
DRCTLP4H 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0
R/W
Bit Position Bit Name
−
31 to 16
15, 14, 11, PUIOP4n,
10, 7, 6, 3,
PDIOP4n
2
Remark: n = 7 to 0
R18UZ0003EJ0501
Jan. 12, 2021
0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
Reserved. (Be sure to write 0 to these bits. If read, 0 is returned.)
These bits specify whether to connect a pull-up or pull-down resistor to the P47 to P40 pins.
PUIO PDIO
0 0
0 1
1 0
1 1
0 1 0 1
0 R/W R/W 0 1 R/W R/W 0
0
0 1 0 1
0 R/W R/W 0 1 R/W R/W 0
0
Description
Connection of a Pull-Up or Pull-Down Resistor
to the P47 to P40 Pins
Do not connect a pull-up or pull-down resistor.
Connect a pull-down resistor.
Connect a pull-up resistor.
Setting prohibited
8. Port Function
8 7 6 5 4 3 2 1 0
0 1 0 1
1 R/W R/W 0 1 R/W R/W 0
1
8 7 6 5 4 3 2 1 0
0 1 0 1
1 R/W R/W 0 1 R/W R/W 0
1
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Address
BASE + 0240H
Initial Value
0000 9999H
Address
BASE + 0244H
Initial Value
0000 9999H