PIC12F609-H/MD MICROCHIP [Microchip Technology], PIC12F609-H/MD Datasheet - Page 61
PIC12F609-H/MD
Manufacturer Part Number
PIC12F609-H/MD
Description
8-Pin, Flash-Based 8-Bit CMOS Microcontrollers
Manufacturer
MICROCHIP [Microchip Technology]
Datasheet
1.PIC12F609-HMD.pdf
(212 pages)
- Current page: 61 of 212
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7.10
If a ECCP is configured to trigger a special event, the
trigger will clear the TMR1H:TMR1L register pair. This
special event does not cause a Timer1 interrupt. The
ECCP module may still be configured to generate a
ECCP interrupt.
In this mode of operation, the CCPR1H:CCPR1L
register pair effectively becomes the period register for
Timer1.
Timer1 should be synchronized to the F
the Special Event Trigger. Asynchronous operation of
Timer1 can cause a Special Event Trigger to be
missed.
In the event that a write to TMR1H or TMR1L coincides
with a Special Event Trigger from the ECCP, the write
will take precedence.
FIGURE 7-2:
2010 Microchip Technology Inc.
T1CKI = 1
when TMR1
Enabled
T1CKI = 0
when TMR1
Enabled
Note 1: Arrows indicate counter increments.
ECCP Special Event Trigger
(PIC12F615/617/HV615 only)
2: In Counter mode, a falling edge must be registered by the counter prior to the first incrementing rising edge of
the clock.
TIMER1 INCREMENTING EDGE
PIC12F609/615/617/12HV609/615
OSC
to utilize
For more information, see Section 11.0 “Enhanced
Capture/Compare/PWM (With Auto-Shutdown and
Dead Band) Module (PIC12F615/617/HV615 only)”.
7.11
The same clock used to increment Timer1 can also be
used to synchronize the comparator output. This
feature is enabled in the Comparator module.
When using the comparator for Timer1 gate, the
comparator output should be synchronized to Timer1.
This ensures Timer1 does not miss an increment if the
comparator changes.
For more information, see Section 9.0 “Comparator
Module”.
Comparator Synchronization
DS41302D-page 61
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