PIC16F684

Overview

For a complete list of features, see this printout from the datasheet.

IMPORTANT: See PIC16F684 Registers for detailed information on registers.

Pinout

Description of Pinout Labels

Label	Description
$V_{DD}\,$	+ 5 V
$V_{SS}\,$	Ground
$V_{REF}\,$	External Voltage Reference
$RA\#/RC\#\,$	PORTA/PORTC Programmable I/O
$AN\#\,$	A/D Channel
$INT\,$	External Interrupt Input
$P1A/B/C/D\,$	PWM Output

Configuring I/O

INIT_IO	
	BANK0
	CLRF 		PORTA 			;Init PORTA - initially set to LOW
	MOVLW 	B'000101'			;Set RA<0> as input
	MOVWF 		TRISA 			;	and set RA<5:1>
								;	as outputs
	BANK1
	CLRF 		PORTC 			;Init PORTC - initially set to LOW
	MOVLW 	B'000000'			;Set RC<5:0> as outputs
	MOVWF 		TRISC

	CLRF		ANSEL			;Set all pins initially to digital I/O
	MOVLW	B'000001'
	MOVWF		ANSEL			;Set AN<0> (RA<0>) to Analog input
								;	RA<5:1> remain digital I/O
	RETURN