PIC16LC771 datasheet(48/224 Pages) MICROCHIP

部件名	PIC16LC771

功能描述	18/20-Pin, 8-Bit CMOS Microcontrollers with 10/12-Bit A/D

PDF	224 Pages

Scroll/Zoom	100%

制造商	MICROCHIP [Microchip Technology]

网页	http://www.microchip.com

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48 / 224 page

PIC16C717/770/771

DS41120C-page 48

 1999-2013 Microchip Technology Inc.

6.1.1

TIMER1 COUNTER OPERATION

In this mode, Timer1 is being incremented via an exter-

nal source. Increments occur on a rising edge. After

Timer1 is enabled in Counter mode, the module must

first have a falling edge before the counter begins to

increment.

FIGURE 6-1:

TIMER1 INCREMENTING EDGE

FIGURE 6-2:

TIMER1 BLOCK DIAGRAM

T1CKI

(Initially high)

T1CKI

(Initially low)

Note: Arrows indicate counter increments.

First falling edge

of the T1ON enabled

First falling edge

of the T1ON enabled

TMR1H

TMR1L

T1OSC

T1SYNC

TMR1CS

T1CKPS<1:0>

SLEEP input

T1OSCEN

Enable

Oscillator(1)

Fosc/4

Internal

Clock

TMR1ON

on/off

Prescaler

1, 2, 4, 8

Synchronize

det

Synchronized

clock input

RB6/T1OSO/T1CKI/P1C

RB7/T1OSI/P1D

Note

1: When the T1OSCEN bit is cleared, the inverter and feedback resistor are turned off. This eliminates power drain.

Set flag bit

TMR1IF on

Overflow

TMR1

PIC16LC771 数据表(PDF) 48 Page - Microchip Technology

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