PIC18LF2410-I/SO Microchip Technology, PIC18LF2410-I/SO Datasheet - Page 131

IC MCU FLASH 8KX16 28SOIC

PIC18LF2410-I/SO

Manufacturer Part Number
PIC18LF2410-I/SO
Description
IC MCU FLASH 8KX16 28SOIC
Manufacturer
Microchip Technology
Series
PIC® 18Fr

Specifications of PIC18LF2410-I/SO

Core Size
8-Bit
Program Memory Size
16KB (8K x 16)
Core Processor
PIC
Speed
40MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, HLVD, POR, PWM, WDT
Number Of I /o
25
Program Memory Type
FLASH
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 10x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
28-SOIC (7.5mm Width)
Controller Family/series
PIC18
No. Of I/o's
25
Ram Memory Size
768Byte
Cpu Speed
40MHz
No. Of Timers
4
Interface
I2C, SPI, USART
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant

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Manufacturer
Quantity
Price
Part Number:
PIC18LF2410-I/SO
Manufacturer:
TOSHIBA
Quantity:
3 000
Part Number:
PIC18LF2410-I/SO
Manufacturer:
MICROHIP
Quantity:
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14.2
In Capture mode, the CCPRxH:CCPRxL register pair
captures the 16-bit value of the TMR1 or TMR3
registers when an event occurs on the corresponding
CCPx pin. An event is defined as one of the following:
• every falling edge
• every rising edge
• every 4th rising edge
• every 16th rising edge
The event is selected by the mode select bits,
CCPxM3:CCPxM0 (CCPxCON<3:0>). When a capture
is made, the interrupt request flag bit, CCPxIF, is set; it
must be cleared in software. If another capture occurs
before the value in register CCPRx is read, the old
captured value is overwritten by the new captured value.
14.2.1
In Capture mode, the appropriate CCPx pin should be
configured as an input by setting the corresponding
TRIS direction bit.
14.2.2
The timers that are to be used with the capture feature
(Timer1 and/or Timer3) must be running in Timer mode or
Synchronized Counter mode. In Asynchronous Counter
mode, the capture operation will not work. The timer to be
used with each CCP module is selected in the T3CON
register (see Section 14.1.1 “CCP Modules and Timer
Resources”).
FIGURE 14-1:
© 2009 Microchip Technology Inc.
Note:
Capture Mode
CCP PIN CONFIGURATION
If RB3/CCP2 or RC1/CCP2 is configured
as an output, a write to the port can cause
a capture condition.
TIMER1/TIMER3 MODE SELECTION
CCP1 pin
CCP2 pin
CAPTURE MODE OPERATION BLOCK DIAGRAM
CCP1CON<3:0>
CCP2CON<3:0>
Prescaler
÷ 1, 4, 16
Prescaler
÷ 1, 4, 16
Q1:Q4
4
Edge Detect
Edge Detect
4
4
and
and
Set CCP2IF
Set CCP1IF
T3CCP1
T3CCP2
T3CCP2
T3CCP1
T3CCP2
T3CCP2
14.2.3
When the Capture mode is changed, a false capture
interrupt may be generated. The user should keep the
CCPxIE interrupt enable bit clear to avoid false inter-
rupts. The interrupt flag bit, CCPxIF, should also be
cleared following any such change in operating mode.
14.2.4
There are four prescaler settings in Capture mode; they
are specified as part of the operating mode selected by
the mode select bits (CCPxM3:CCPxM0). Whenever
the CCP module is turned off or Capture mode is dis-
abled, the prescaler counter is cleared. This means
that any Reset will clear the prescaler counter.
Switching from one capture prescaler to another may
generate an interrupt. Also, the prescaler counter will
not be cleared; therefore, the first capture may be from
a non-zero prescaler. Example 14-1 shows the
recommended method for switching between capture
prescalers. This example also clears the prescaler
counter and will not generate the “false” interrupt.
EXAMPLE 14-1:
CLRF
MOVLW
MOVWF
PIC18F2X1X/4X1X
CCP2CON
NEW_CAPT_PS ; Load WREG with the
CCP2CON
SOFTWARE INTERRUPT
CCP PRESCALER
TMR3
Enable
TMR1
Enable
TMR3
Enable
TMR1
Enable
CCPR1H
CCPR2H
TMR3H
TMR1H
TMR3H
TMR1H
CHANGING BETWEEN
CAPTURE PRESCALERS
(CCP2 SHOWN)
; Turn CCP module off
; new prescaler mode
; value and CCP ON
; Load CCP2CON with
; this value
CCPR1L
CCPR2L
TMR1L
TMR1L
TMR3L
TMR3L
DS39636D-page 133

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