PIC16F1508TESSQTO datasheet(167/384 Pages) MICROCHIP

167 / 384 page

 2011 Microchip Technology Inc.

Preliminary

DS41609A-page 167

PIC16(L)F1508/9

19.0 TIMER1 MODULE WITH GATE

CONTROL

The Timer1 module is a 16-bit timer/counter with the

following features:

• 16-bit timer/counter register pair (TMR1H:TMR1L)

• Programmable internal or external clock source

• 2-bit prescaler

• Optionally synchronized comparator out

• Multiple Timer1 gate (count enable) sources

• Interrupt on overflow

• Wake-up on overflow (external clock,

Asynchronous mode only)

• Special Event Trigger

• Selectable Gate Source Polarity

• Gate Toggle mode

• Gate Single-Pulse mode

• Gate Value Status

• Gate Event Interrupt

Figure 19-1 is a block diagram of the Timer1 module.

FIGURE 19-1:

TIMER1 BLOCK DIAGRAM

TMR1H

TMR1L

T1SYNC

T1CKPS<1:0>

Prescaler

1, 2, 4, 8

Synchronized

Clock Input

Set flag bit

TMR1IF on

Overflow

TMR1(2)

TMR1ON

Note 1: ST Buffer is high speed type when using T1CKI.

2: Timer1 register increments on rising edge.

3: Synchronize does not operate while in Sleep.

T1G

FOSC/4

Internal

Clock

TMR1CS<1:0>

Synchronize(3)

det

Sleep input

TMR1GE

T1GPOL

T1GVAL

T1GTM

Single Pulse

Acq. Control

T1GSPM

T1GGO/DONE

T1GSS<1:0>

FOSC

Internal

Clock

LFINTOSC

T1GCON

Data Bus

det

Interrupt

TMR1GIF

Set

T1CLK

FOSC/2

Internal

Clock

t1g_in

TMR1ON

From Timer0

Overflow

To ADC Auto-Conversion

SYNCC1OUT

SYNCC2OUT

To Clock Switching

Modules

Secondary

SOSCO/T1CKI

SOSCI

T1OSCEN

(1)

OUT

Oscillator

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