Datasheet

2012 Microchip Technology Inc. Preliminary DS41624B-page 113
PIC16(L)F1512/3
TABLE 12-6: SUMMARY OF REGISTERS ASSOCIATED WITH PORTB
REGISTER 12-9: ANSELB: PORTB ANALOG SELECT REGISTER
U-0 U-0 R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1
ANSB5 ANSB4 ANSB3 ANSB2 ANSB1 ANSB0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets
‘1’ = Bit is set 0’ = Bit is cleared
bit 7-6
Unimplemented: Read as ‘0
bit 5-0
ANSB<5:0>: Analog Select between Analog or Digital Function on pins RB<5:0>, 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.
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.
REGISTER 12-10: WPUB: WEAK PULL-UP PORTB REGISTER
R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1
WPUB7 WPUB6 WPUB5 WPUB4 WPUB3 WPUB2 WPUB1 WPUB0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets
‘1’ = Bit is set ‘0’ = Bit is cleared
bit 7-0
WPUB<7:0>: Weak Pull-up Register bits
1 = Pull-up enabled
0 = Pull-up disabled
Note 1: Global WPUEN bit of the OPTION_REG register must be cleared for individual pull-ups to be enabled.
2: The weak pull-up device is automatically disabled if the pin is in configured as an output.
Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Register
on Page
ANSELB ANSB5 ANSB4 ANSB3 ANSB2 ANSB1 ANSB0 113
APFCON
SSSEL CCP2SEL 106
LATB LATB7 LATB6 LATB5 LATB4 LATB3 LATB2 LATB1 LATB0 112
OPTION_REG WPUEN
INTEDG TMR0CS TMR0SE PSA PS<2:0> 165
PORTB RB7 RB6 RB5 RB4 RB3 RB2 RB1 RB0 112
TRISB TRISB7 TRISB6 TRISB5 TRISB4 TRISB3 TRISB2 TRISB1 TRISB0 112
WPUB WPUB7 WPUB6 WPUB5 WPUB4 WPUB3 WPUB2 WPUB1 WPUB0 113
Legend: x = unknown, u = unchanged, - = unimplemented locations read as ‘0’. Shaded cells are not used by PORTB.