PIC16LF723A-E/MV Microchip Technology, PIC16LF723A-E/MV Datasheet - Page 108
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PIC16LF723A-E/MV
Manufacturer Part Number
PIC16LF723A-E/MV
Description
7 KB Flash, 16 MHz Int. Osc, NanoWatt XLP 28 UQFN 4x4x0.5mm TUBE
Manufacturer
Microchip Technology
Series
PIC® XLP™ 16Fr
Datasheet
1.PIC16F722AT-ISS.pdf
(284 pages)
Specifications of PIC16LF723A-E/MV
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
25
Program Memory Size
7KB (4K x 14)
Program Memory Type
FLASH
Ram Size
192 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Data Converters
A/D 11x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
28-UFQFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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PIC16F/LF722A/723A
12.7
The Timer1 register pair (TMR1H:TMR1L) increments
to FFFFh and rolls over to 0000h. When Timer1 rolls
over, the Timer1 interrupt flag bit of the PIR1 register is
set. To enable the interrupt on rollover, you must set
these bits:
• TMR1ON bit of the T1CON register
• TMR1IE bit of the PIE1 register
• PEIE bit of the INTCON register
• GIE bit of the INTCON register
The interrupt is cleared by clearing the TMR1IF bit in
the Interrupt Service Routine.
12.8
Timer1 can only operate during Sleep when setup in
Asynchronous Counter mode. In this mode, an external
crystal or clock source can be used to increment the
counter. To set up the timer to wake the device:
• TMR1ON bit of the T1CON register must be set
• TMR1IE bit of the PIE1 register must be set
• PEIE bit of the INTCON register must be set
• T1SYNC bit of the T1CON register must be set
• TMR1CS bits of the T1CON register must be
• T1OSCEN bit of the T1CON register must be
• TMR1GIE bit of the T1GCON register must be
The device will wake-up on an overflow and execute
the next instructions. If the GIE bit of the INTCON
register is set, the device will call the Interrupt Service
Routine (0004h).
FIGURE 12-2:
DS41417A-page 108
Note:
configured
configured
configured
Note 1: Arrows indicate counter increments.
T1CKI = 1
when TMR1
Enabled
T1CKI = 0
when TMR1
Enabled
2: In Counter mode, a falling edge must be registered by the counter prior to the first incrementing rising edge of the clock.
Timer1 Interrupt
Timer1 Operation During Sleep
The TMR1H:TMR1L register pair and the
TMR1IF bit should be cleared before
enabling interrupts.
TIMER1 INCREMENTING EDGE
12.9
The CCP module uses the TMR1H:TMR1L register
pair as the time base when operating in Capture or
Compare mode.
In Capture mode, the value in the TMR1H:TMR1L
register pair is copied into the CCPR1H:CCPR1L
register pair on a configured event.
In Compare mode, an event is triggered when the value
CCPR1H:CCPR1L register pair matches the value in
the TMR1H:TMR1L register pair. This event can be a
Special Event Trigger.
For more information, see Section 15.0 “Capture/
Compare/PWM (CCP) Module”.
12.10 CCP Special Event Trigger
When the CCP 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 CCP module may still be configured to generate a
CCP interrupt.
In this mode of operation, the CCPR1H:CCPR1L
register pair 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 CCP, the write will
take precedence.
For more information, see Section 9.2.5 “Special
Event Trigger”.
CCP Capture/Compare Time Base
2010 Microchip Technology Inc.
OSC
/4 to utilize
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