PIC18F8490T-I/PT Microchip Technology, PIC18F8490T-I/PT Datasheet - Page 152
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PIC18F8490T-I/PT
Manufacturer Part Number
PIC18F8490T-I/PT
Description
IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,TQFP,80PIN,PLASTIC
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC18F6310-IPT.pdf
(28 pages)
3.PIC18F6390-IPT.pdf
(414 pages)
4.PIC18F6390-IPT.pdf
(16 pages)
5.PIC18F6390-IPT.pdf
(12 pages)
6.PIC18F6390-IPT.pdf
(6 pages)
7.PIC18F6390-IPT.pdf
(4 pages)
Specifications of PIC18F8490T-I/PT
Rohs Compliant
YES
Core Processor
PIC
Core Size
8-Bit
Speed
40MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, HLVD, LCD, POR, PWM, WDT
Number Of I /o
66
Program Memory Size
16KB (8K x 16)
Program Memory Type
FLASH
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
80-TFQFP
Processor Series
PIC18F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
768 B
Interface Type
SPI, I2C, EUSART, AUSART
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
66
Number Of Timers
1 x 8
Operating Supply Voltage
4.2 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, ICE4000, DV164136, DM163028
Minimum Operating Temperature
- 40 C
On-chip Adc
12 bit
Data Rom Size
768 B
Height
1 mm
Length
12 mm
Supply Voltage (max)
5.5 V
Supply Voltage (min)
4.2 V
Width
12 mm
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With
XLT80PT3 - SOCKET TRAN ICE 80MQFP/TQFPDM163028 - BOARD DEMO PICDEM LCDAC164320 - MODULE SKT MPLAB PM3 80TQFPAC174011 - MODULE SKT PROMATEII 80TQFP
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F8490T-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
- PIC16F616T-ISL PDF datasheet
- PIC18F6310-IPT PDF datasheet #2
- PIC18F6390-IPT PDF datasheet #3
- PIC18F6390-IPT PDF datasheet #4
- PIC18F6390-IPT PDF datasheet #5
- PIC18F6390-IPT PDF datasheet #6
- PIC18F6390-IPT PDF datasheet #7
- Current page: 152 of 414
- Download datasheet (7Mb)
PIC18F6390/6490/8390/8490
14.2
In Capture mode, the CCPR2H:CCPR2L register pair
captures the 16-bit value of the TMR1 or TMR3
registers when an event occurs on the CCP2 pin (RC1
or RE7, depending on device configuration). 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,
CCP2M3:CCP2M0
capture is made, the interrupt request flag bit, CCP2IF
(PIR2<0>), is set; it must be cleared in software. If
another capture occurs before the value in register
CCPR2 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 may 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 14-2:
DS39629C-page 150
Note:
Capture Mode
CCP1 pin
CCP2 pin
CCP PIN CONFIGURATION
If RC1/CCP2 or RE7/CCP2 is configured
as an output, a write to the port can cause
a capture condition.
TIMER1/TIMER3 MODE SELECTION
(CCP2CON<3:0>).
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
When
Set CCP2IF
Set CCP1IF
a
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 bit
CCP2IE (PIE2<0>) clear to avoid false interrupts and
should clear the flag bit, CCP2IF, 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 (CCP2M3:CCP2M0). Whenever
the CCP module is turned off, or the CCP module is not
in Capture mode, 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
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
; Turn CCP module off
; new prescaler mode
; value and CCP ON
; Load CCP2CON with
; this value
© 2007 Microchip Technology Inc.
CCPR1L
CCPR2L
TMR3L
TMR1L
TMR1L
TMR3L
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