C8051F99X_10 Datasheet, PDF (222/322 Pages) Silicon Laboratories – Ultra Low Power, 8-2 kB Flash, Capacitive Sensing MCU

C8051F99x-C8051F98x
SFR Definition 21.3. XBR2: Port I/O Crossbar Register 2
Bit
7
6
5
4
3
2
1
0
Name WEAKPUD XBARE
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reset
0
0
0
0
0
0
0
0
SFR Page = 0x0; SFR Address = 0xE3
Bit
Name
Function
7 WEAKPUD Port I/O Weak Pullup Disable.
0: Weak Pullups enabled (except for Port I/O pins configured for analog mode).
6
XBARE Crossbar Enable.
0: Crossbar disabled.
1: Crossbar enabled.
5:0 Unused Read = 000000b; Write = Don’t Care.
Note: The Crossbar must be enabled (XBARE = 1) to use any Port pin as a digital output.
222
Rev. 1.0