PIC12F609-I/PQTP MICROCHIP [Microchip Technology], PIC12F609-I/PQTP Datasheet - Page 47
PIC12F609-I/PQTP
Manufacturer Part Number
PIC12F609-I/PQTP
Description
8-Pin Flash-Based, 8-Bit CMOS Microcontrollers
Manufacturer
MICROCHIP [Microchip Technology]
Datasheet
1.PIC12F609-IPQTP.pdf
(168 pages)
- Current page: 47 of 168
- Download datasheet (3Mb)
6.0
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
• 3-bit prescaler
• Optional LP oscillator
• Synchronous or asynchronous operation
• Timer1 gate (count enable) via comparator or
• Interrupt on overflow
• Wake-up on overflow (external clock,
• Time base for the Capture/Compare function
• Special Event Trigger (with ECCP)
• Comparator output synchronization to Timer1
Figure 6-1 is a block diagram of the Timer1 module.
6.1
The Timer1 module is a 16-bit incrementing counter
which is accessed through the TMR1H:TMR1L register
pair. Writes to TMR1H or TMR1L directly update the
counter.
When used with an internal clock source, the module is
a timer. When used with an external clock source, the
module can be used as either a timer or counter.
© 2006 Microchip Technology Inc.
T1G pin
Asynchronous mode only)
clock
TIMER1 MODULE WITH GATE
CONTROL
Timer1 Operation
PIC12F609/615/12HV609/615
Preliminary
6.2
The TMR1CS bit of the T1CON register is used to select
the clock source. When TMR1CS = 0, the clock source
is F
supplied externally.
F
F
T1CKI pin
Clock Source
OSC
OSC
OSC
/4
/4. When TMR1CS = 1, the clock source is
Clock Source Selection
TMR1CS
0
0
1
DS41302A-page 45
T1ACS
0
1
x
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