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PIC16F913 Datasheet(PDF) 87 Page - Microchip Technology

Part # PIC16F913
Description  28/40/44-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver and nanoWatt Technology
PDF  272 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC16F913 Datasheet(HTML) 87 Page - Microchip Technology

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© 2005 Microchip Technology Inc.
Preliminary
DS41250E-page 85
PIC16F917/916/914/913
6.0
TIMER1 MODULE WITH GATE
CONTROL
The PIC16F917/916/914/913 has a 16-bit timer.
Figure 6-1 shows the basic block diagram of the Timer1
module. Timer1 has the following features:
• 16-bit timer/counter (TMR1H:TMR1L)
• Readable and writable
• Internal or external clock selection
• Synchronous or asynchronous operation
• Interrupt-on-overflow from FFFFh to 0000h
• Wake-up upon overflow (Asynchronous mode)
• Optional external enable input:
- Selectable gate source: T1G or C2 output
(T1GSS)
- Selectable gate polarity (T1GINV)
• Optional LP oscillator
The Timer1 Control register (T1CON), shown in
Register 6-1, is used to enable/disable Timer1 and
select the various features of the Timer1 module.
FIGURE 6-1:
TIMER1 ON THE PIC16F917/916/914/913 BLOCK DIAGRAM
Note:
Additional information on timer modules is
available in the “PICmicro® Mid-Range MCU
Family Reference Manual” (DS33023).
TMR1H
TMR1L
LP OSC
T1SYNC
T1CKPS<1:0>
Sleep Input
FOSC/4
Internal
Clock
Prescaler
1, 2, 4, 8
Synchronize
det
1
0
0
1
Synchronized
Clock Input
2
OSC1/T1OSI
OSC2/T1OSO
Set Flag bit
TMR1IF on
Overflow
TMR1(1)
TMR1ON
T1GE
TMR1ON
T1GE
FOSC = 000
T1OSCEN
FOSC = x00
1
0
C2OUT
T1GSS
T1GINV
To C2 Comparator Module
TMR1 Clock
Note 1:
Timer1 increments on the rising edge.
2:
ST Buffer is low-power type when using LP oscillator or high-speed type when using T1CKI.
RC4/T1G/
1
0
RC5/T1CKI/
T1CS
(2)
Clear on special
event trigger
SDO/SEG11
CCP1/SEG10



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