PIC16F722 Datasheet, PDF (64/302 Pages) Microchip Technology – 28/40/44-Pin Flash Microcontrollers with nanoWatt XLP Technology

PIC16F72X/PIC16LF72X
REGISTER 6-7: WPUB: WEAK PULL-UP PORTB REGISTER
R/W-1
WPUB7
bit 7
R/W-1
WPUB6
R/W-1
WPUB5
R/W-1
WPUB4
R/W-1
WPUB3
R/W-1
WPUB2
R/W-1
WPUB1
R/W-1
WPUB0
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 7-0
Note 1:
2:
WPUB<7:0>: Weak Pull-up Register bits
1 = Pull-up enabled
0 = Pull-up disabled
Global RBPU bit of the OPTION 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 6-8: IOCB: INTERRUPT-ON-CHANGE PORTB REGISTER
R/W-0
IOCB7
bit 7
R/W-0
IOCB6
R/W-0
IOCB5
R/W-0
IOCB4
R/W-0
IOCB3
R/W-0
IOCB2
R/W-0
IOCB1
R/W-0
IOCB0
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 7-0
IOCB<7:0>: Interrupt-on-Change PORTB Control bits
1 = Interrupt-on-change enabled
0 = Interrupt-on-change disabled
REGISTER 6-9: ANSELB: PORTB ANALOG SELECT REGISTER
U-0
—
bit 7
U-0
R/W-1
R/W-1
R/W-1
R/W-1
—
ANSB5
ANSB4
ANSB3
ANSB2
R/W-1
ANSB1
R/W-1
ANSB0
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 7-6
bit 5-0
Unimplemented: Read as ‘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.
DS41341E-page 64
© 2009 Microchip Technology Inc.