Datasheet

PIC16(L)F1507
DS41586A-page 107 Preliminary  2011 Microchip Technology Inc.
TABLE 11-6: SUMMARY OF REGISTERS ASSOCIATED WITH PORTB
REGISTER 11-10: ANSELB: PORTB ANALOG SELECT REGISTER
U-0 U-0 R/W-1/1 R/W-1/1 U-0 U-0 U-0 U-0
— — ANSB5 ANSB4 — — — —
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 5-4 ANSB<5:4>: Analog Select between Analog or Digital Function on pins RB<5:4>, respectively
1 = Analog input. Pin is assigned as analog input
(1)
. Digital input buffer disabled.
0 = Digital I/O. Pin is assigned to port or digital special function.
bit 3-0 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.
REGISTER 11-11: WPUB: WEAK PULL-UP PORTB REGISTER
R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1 U-0 U-0 U-0 U-0
WPUB7 WPUB6 WPUB5 WPUB4 — — — —
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 7-4 WPUB<7:4>: Weak Pull-up Register bits
1 = Pull-up enabled
0 = Pull-up disabled
bit 3-0 Unimplemented: Read as ‘0’
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 — — — — 107
LATB LATB7 LATB6 LATB5 LATB4
— — — — 106
PORTB RB7 RB6 RB5 RB4
— — — — 106
TRISB TRISB7 TRISB6 TRISB5 TRISB4
— — — — 106
WPUB WPUB7 WPUB6 WPUB5 WPUB4
— — — — 107
Legend: x = unknown, u = unchanged, - = unimplemented locations read as ‘0’. Shaded cells are not used by
PORTB.