PIC16F716-I/P View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC16F716-I/P

8-bit Flash-based Microcontroller with A/D Converter and Enhanced Capture/Compare/PWM

Microchip Technology 

PIC16F716

FIGURE 3-2:

BLOCK DIAGRAM OF

RA4/T0CKI PIN

DATA

BUS

WR

PORT

WR

TRIS

Data Latch

D

Q

CK Q

TRIS Latch

D

Q

CK Q

RA4/T0CKI

N

VSS

VSS

Schmitt

Trigger

Input

Buffer

RD PORT

RD TRIS

QD

ENEN

TMR0 Clock Input

TABLE 3-1: PORTA FUNCTIONS

Name

Bit# Buffer

Function

RA0/AN0

bit 0 TTL Input/output or analog input

RA1/AN1

bit 1 TTL Input/output or analog input

RA2/AN2

bit 2 TTL Input/output or analog input

RA3/AN3/VREF bit 3 TTL Input/output or analog input or VREF

RA4/T0CKI

bit 4

ST Input/output or external clock input for Timer0

Output is open drain type

Legend: TTL = TTL input, ST = Schmitt Trigger input

TABLE 3-2: SUMMARY OF REGISTERS ASSOCIATED WITH PORTA

Address Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0

Value on

POR,

BOR

Value on all

other

Resets

05h

PORTA

— — —(1) RA4 RA3 RA2 RA1 RA0 --xx 0000 --uu uuuu

85h

TRISA

— — —(1) PORTA Data Direction Register

--11 1111 --11 1111

9Fh

ADCON1 — — — — — PCFG2 PCFG1 PCFG0 ---- -000 ---- -000

Legend: x = unknown, u = unchanged, - = unimplemented locations read as ‘0’. Shaded cells are not used by

PORTA.

Note 1: Reserved bits, do not use.

DS41206A-page 20

Preliminary

 2003 Microchip Technology Inc.

Share Link: