Datasheet

© 2009 Microchip Technology Inc. DS41341E-page 81
PIC16F72X/PIC16LF72X
REGISTER 6-13: TRISD: PORTD TRI-STATE REGISTER
(1)
R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1
TRISD7 TRISD6 TRISD5 TRISD4 TRISD3 TRISD2 TRISD1 TRISD0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 7-0 TRISD<7:0>: PORTD Tri-State Control bits
1 = PORTD pin configured as an input (tri-stated)
0 = PORTD pin configured as an output
Note 1: TRISD is not implemented on PIC16F722/723/726/PIC16LF722/723/726 devices, read as ‘0’.
REGISTER 6-14: ANSELD: PORTD ANALOG SELECT REGISTER
(2)
R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1
ANSD7 ANSD6 ANSD5 ANSD4 ANSD3 ANSD2 ANSD1 ANSD0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 7-0 ANSD<7:0>: Analog Select between Analog or Digital Function on Pins RD<7:0>, 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.
2: ANSELD register is not implemented on the PIC16F722/723/726/PIC16LF722/723/726. Read as ‘0’.