PIC16F1847_13 Datasheet, PDF (127/440 Pages) Microchip Technology – 18/20/28-Pin Flash Microcontrollers with XLP Technology

PIC16(L)F1847
REGISTER 12-11: WPUB: WEAK PULL-UP PORTB REGISTER
R/W-1/1
WPUB7
bit 7
R/W-1/1
WPUB6
R/W-1/1
WPUB5
R/W-1/1
WPUB4
R/W-1/1
WPUB3
R/W-1/1
WPUB2
R/W-1/1
WPUB1
R/W-1/1
WPUB0
bit 0
Legend:
R = Readable bit
u = Bit is unchanged
‘1’ = Bit is set
W = Writable bit
x = Bit is unknown
‘0’ = Bit is cleared
U = Unimplemented bit, read as ‘0’
-n/n = Value at POR and BOR/Value at all other Resets
bit 7-0
Note 1:
2:
WPUB<7:0>: Weak Pull-up Register bits
1 = Pull-up enabled
0 = Pull-up disabled
Global WPUEN bit of the OPTION_REG register must be cleared for individual pull-ups to be enabled.
The weak pull-up device is automatically disabled if the pin is in configured as an output.
REGISTER 12-12: ANSELB: PORTB ANALOG SELECT REGISTER
R/W-1/1
ANSB7
bit 7
R/W-1/1
ANSB6
R/W-1/1
ANSB5
R/W-1/1
ANSB4
R/W-1/1
ANSB3
R/W-1/1
ANSB2
R/W-1/1
ANSB1
U-0
—
bit 0
Legend:
R = Readable bit
u = Bit is unchanged
‘1’ = Bit is set
W = Writable bit
x = Bit is unknown
‘0’ = Bit is cleared
U = Unimplemented bit, read as ‘0’
-n/n = Value at POR and BOR/Value at all other Resets
bit 7-1
bit 0
ANSB<7:1>: Analog Select between Analog or Digital Function on Pins RB<7:1>, respectively
0 = Digital I/O. Pin is assigned to port or digital special function.
1 = Analog input. Pin is assigned as analog input⁽¹⁾. Digital input buffer disabled.
Unimplemented: Read as ‘0’
Note 1: When setting a pin to an analog input, the corresponding TRIS bit must be set to Input mode in order to
allow external control of the voltage on the pin.
 2011-2013 Microchip Technology Inc.
Preliminary
DS40001453D-page 127