Pull-Up Control Register (Pcr) - Renesas RX100 Series User Manual

RX13T Group
17.3.7

Pull-Up Control Register (PCR)

Address(es): PORT1.PCR 0008 C0C1h, PORT2.PCR 0008 C0C2h, PORT3.PCR 0008 C0C3h, PORT4.PCR 0008 C0C4h,
PORT7.PCR 0008 C0C7h, PORT9.PCR 0008 C0C9h, PORTA.PCR 0008 C0CAh, PORTB.PCR 0008 C0CBh,
PORTD.PCR 0008 C0CDh
b7 b6
B7 B6
0 0
Value after reset:
Bit Symbol Bit Name
b0 B0 Pm0 Input Pull-Up Resistor Control
b1 B1 Pm1 Input Pull-Up Resistor Control
b2 B2 Pm2 Input Pull-Up Resistor Control
b3 B3 Pm3 Input Pull-Up Resistor Control
b4 B4 Pm4 Input Pull-Up Resistor Control
b5 B5 Pm5 Input Pull-Up Resistor Control
b6 B6 Pm6 Input Pull-Up Resistor Control
b7 B7 Pm7 Input Pull-Up Resistor Control
m = 1 to 4, 7, 9, A, B, D
While a pin is in the input state with the corresponding bit in PORTm.PCR set to 1, the pull-up resistor connected to the
pin is enabled.
When a pin is used as a general port output pin, or a peripheral function output pin, the pull-up resistor for the pin is
disabled regardless of the settings of the PCR register.
The pull-up resistor is also disabled in the reset state.
The bit corresponding to a pin that does not exist is also reserved. A reserved bit is read as 0. The write value should be 0.
R01UH0822EJ0100 Rev.1.00
Jul 31, 2019
b5 b4 b3 b2
B5 B4 B3 B2
0 0 0 0
b1 b0
B1 B0
0 0
Description
0: Disables an input pull-up resistor.
1: Enables an input pull-up resistor.
17. I/O Ports
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
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