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PIC16LC712 датащи(PDF) 32 Page - Microchip Technology

номер детали PIC16LC712
подробное описание детали  8-Bit CMOS Microcontrollers with A/D Converter and Capture/Compare/PWM
PDF  106 Pages
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производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC16LC712 датащи(HTML) 32 Page - Microchip Technology

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PIC16C712/716
DS41106C-page 32
 1999-2013 Microchip Technology Inc.
FIGURE 5-2:
TIMER1 BLOCK DIAGRAM
5.2
Timer1 Module and PORTB
Operation
When Timer1 is configured as timer running from the
main oscillator, PORTB<2:1> operate as normal I/O
lines. When Timer1 is configured to function as a
counter however, the clock source selection may affect
the operation of PORTB<2:1>. Multiplexing details of
the Timer1 clock selection on PORTB are shown in
Figure 3-4 and Figure 3-5.
The clock source for Timer1 in the Counter mode can
be from one of the following:
1.
External circuit connected to the RB1/T1OSO/
T1CKI pin
2.
Firmware controlled DATACCP<0> bit, DT1CKI
3.
Timer1 oscillator
Table 5-1 shows the details of Timer1 mode selections,
control bit settings, TMR1 and PORTB operations.
TMR1H
TMR1L
T1OSC
T1SYNC
TMR1CS
T1CKPS1:T1CKPS0
Sleep input
T1OSCEN
Enable
Oscillator(1)
FOSC/4
Internal
Clock
TMR1ON
on/off
Prescaler
1, 2, 4, 8
Synchronize
det
1
0
0
1
Synchronized
clock input
2
RB1/T1OSO/T1CKI
RB2/T1OSI
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



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