PIC16F753 Datasheet, PDF (63/238 Pages) Microchip Technology – 14/16-Pin, Flash-Based 8-Bit CMOS Microcontrollers

PIC16F753/HV753
7.0 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)
• Selectable internal or external clock sources
• 2-bit prescaler
• Synchronous or asynchronous operation
• 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)
• Selectable Gate Source Polarity
FIGURE 7-1:
T1GSS<1:0>
TIMER1 BLOCK DIAGRAM
• Gate Toggle mode
• Gate Single-pulse mode
• Gate Value Status
• Gate Event Interrupt
Figure 7-1 is a block diagram of the Timer1 module.
T1G
00
T0_overflow
01
C1OUT_sync
10
C2OUT_sync
11
T1GPOL
TMR1ON
T1GTM
D
Q
CK
Q
R
T1GSPM
1
0
Single Pulse
D
Q
1
Acq. Control
0
Q1
T1GGO/DONE
Interrupt
det
T1GVAL
set bit
TMR1GIF
set flag bit
TMR1IF
T1_overflow
TMR1⁽²⁾
TMR1H TMR1L
T1CLK
TMR1GE
EN
Q
D
TMR1ON
Synchronized Clock Input
0
1
T1SYNC
TMR1CS<1:0>
T1CKI
LFINTOSC
(1)
Fosc
Internal Clock
Fosc/4
Internal Clock
Note 1: ST Buffer is high speed type when using T 1CKI.
2: Timer1 register increments on rising edge.
3: Synchronize does not operate while in Sleep .
11
10
Prescaler
01
1,2,4,8
Synchronize⁽³⁾
det
00
2
Fosc/2
T1CKPS<1:0> _Internal
Sleep
Clock
Input
 2013 Microchip Technology Inc.
Preliminary
DS40001709A-page 63