PIC16LC773T-04I/JW View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC16LC773T-04I/JW

28/40-Pin, 8-Bit CMOS Microcontrollers w/ 12-Bit A/D

Microchip Technology 

PIC16C77X

5.1.1 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 5-2: TIMER1 INCREMENTING EDGE

T1CKI

(Default high)

T1CKI

(Default low)

Note: Arrows indicate counter increments.

FIGURE 5-3: TIMER1 BLOCK DIAGRAM

Set flag bit

TMR1IF on

Overflow

RC0/T1OSO/T1CKI

RC1/T1OSI

TMR1

0

Synchronized

clock input

TMR1H TMR1L

1

T1OSC

TMR1ON

on/off

T1SYNC

T1OSCEN FOSC/4

Enable

Oscillator(1)

Internal

Clock

1

Prescaler

1, 2, 4, 8

0

2

T1CKPS1:T1CKPS0

Synchronize

det

SLEEP input

TMR1CS

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

DS30275B-page 42

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