PIC18F6410ESLASHPTSQTP datasheet(134/404 Pages) MICROCHIP

134 / 404 page

PIC18F6310/6410/8310/8410

DS39635A-page 132

Preliminary

 2004 Microchip Technology Inc.

10.6

PORTF, LATF and TRISF Registers

PORTF is an 8-bit wide, bidirectional port. The corre-

sponding data direction register is TRISF. Setting a

TRISF bit (= 1) will make the corresponding PORTF pin

an input (i.e., put the corresponding output driver in a

high-impedance mode). Clearing a TRISF bit (= 0) will

make the corresponding PORTF pin an output (i.e., put

the contents of the output latch on the selected pin).

The Data Latch register (LATF) is also memory

mapped. Read-modify-write operations on the LATF

PORTF.

All pins on PORTF are implemented with Schmitt

Trigger

input

buffers.

Each

individually

configurable as an input or output.

PORTF is multiplexed with several analog peripheral

functions, including the A/D converter and comparator

inputs, as well as the comparator outputs. Pins RF2

through RF6 may be used as comparator inputs or

outputs by setting the appropriate bits in the CMCON

necessary to turn off the comparators.

EXAMPLE 10-6:

INITIALIZING PORTF

Note:

On a Power-on Reset, RA5 and RA3:RA0

are configured as analog inputs and read

as ‘0’. RA4 is configured as a digital input.

Note 1: On a Power-on Reset, the RF6:RF0 pins

are configured as inputs and read as ‘0’.

2: To configure PORTF as digital I/O, turn off

comparators and set ADCON1 value.

CLRF

PORTF

; Initialize PORTF by

; clearing output

; data latches

CLRF

LATF

; Alternate method

; to clear output

; data latches

MOVLW

0x07

;

MOVWF

CMCON

; Turn off comparators

MOVLW

0x0F

;

MOVWF

ADCON1

; Set PORTF as digital I/O

MOVLW

0xCF

; Value used to

; initialize data

; direction

MOVWF

TRISF

; Set RF3:RF0 as inputs

; RF5:RF4 as outputs

; RF7:RF6 as inputs

PIC18F6410E/PTSQTP Datasheet(PDF) 134 Page - Microchip Technology

PIC18F6410E/PTSQTP Datasheet(HTML) 134 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL