Drive Capacity Control Register (Dscr) - Renesas RX100 Series User Manual

RX13T Group
17.3.8

Drive Capacity Control Register (DSCR)

Address(es): PORT1.DSCR 0008 C0E1h, PORT2.DSCR 0008 C0E2h, PORT7.DSCR 0008 C0E7h, PORT9.DSCR 0008 C0E9h,
PORTA.DSCR 0008 C0EAh, PORTB.DSCR 0008 C0EBh, PORTD.DSCR 0008 C0EDh
b7 b6
B7 B6
0 0
Value after reset:
Bit Symbol Bit Name
b0 B0 Pm0 Drive Capacity Control
b1 B1 Pm1 Drive Capacity Control
b2 B2 Pm2 Drive Capacity Control
b3 B3 Pm3 Drive Capacity Control
b4 B4 Pm4 Drive Capacity Control
b5 B5 Pm5 Drive Capacity Control
b6 B6 Pm6 Drive Capacity Control
b7 B7 Pm7 Drive Capacity Control
m = 1, 2, 7, 9, A, B, D
The bit corresponding to a pin with the fixed drive capacity can be read from or written to. However, the drive capacity
cannot be changed.
When high-drive output is selected, switching noise increases compared to when normal output is selected. Carefully
evaluate the effect of noise on the MCU caused by adjacent pins before selecting high-drive output.
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.
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: Normal drive output
1: High-drive output
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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