PIC12F1822-ISLASHMF datasheet(172/398 Pages) MICROCHIP

172 / 398 page

PIC12F/LF1822/16F/LF1823

DS41413A-page 172

Preliminary

 2010 Microchip Technology Inc.

20.0 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

• Dedicated 32 kHz oscillator circuit

• Optionally synchronized comparator out

• Multiple Timer1 gate (count enable) sources

• Interrupt on overflow

• Wake-up on overflow (external clock,

Asynchronous mode only)

• Time base for the Capture/Compare function

• Special Event Trigger (with CCP/ECCP)

• Selectable Gate Source Polarity

• Gate Toggle Mode

• Gate Single-pulse Mode

• Gate Value Status

• Gate Event Interrupt

Figure 20-1 is a block diagram of the Timer1 module.

FIGURE 20-1:

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

T1OSC

FOSC/4

Internal

Clock

T1OSO

T1OSI

T1OSCEN

T1CKI

TMR1CS<1:0>

(1)

Synchronize(3)

det

Sleep input

TMR1GE

T1GPOL

T1GVAL

T1GTM

Single Pulse

Acq. Control

T1GSPM

T1GGO/DONE

T1GSS<1:0>

OUT

FOSC

Internal

Clock

Cap. Sensing

T1GCON

Data Bus

det

Interrupt

TMR1GIF

Set

T1CLK

FOSC/2

Internal

Clock

T1G_IN

TMR1ON

Oscillator

From Timer0

Comparator 1

Overflow

Comparator 2

SYNCC2OUT

SYNCC1OUT

To Comparator Module

To Clock Switching Modules

PIC12F1822-I/MF Datasheet(PDF) 172 Page - Microchip Technology

PIC12F1822-I/MF Datasheet(HTML) 172 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL