PIC16F648A-I/ML Microchip Technology, PIC16F648A-I/ML Datasheet - Page 59

• Manufacturer Part Number: PIC16F648A-I/ML
• Description: IC MCU FLASH 4KX14 EEPROM 28QFN
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F648A-I/ML

• Core Size: 8-Bit
• Program Memory Size: 7KB (4K x 14)
• Oscillator Type: Internal
• Core Processor: PIC
• Speed: 20MHz
• Connectivity: UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 16
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
• Controller Family/series: PIC16F
• No. Of I/o's: 16
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 256Byte
• Cpu Speed: 20MHz
• No.: RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC164324 - MODULE SKT FOR MPLAB 8DFN/16QFNXLT28QFN3 - SOCKET TRAN ICE 18DIP/28QFNI3DBF648 - BOARD DAUGHTER ICEPIC3AC164033 - ADAPTER 28QFN TO 18DIPDV007003 - PROGRAMMER UNIVERSAL PROMATE II
• Data Converters: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

9.2.1
The user must configure the RB3/CCP1 pin as an
output by clearing the TRISB<3> bit.
9.2.2
Timer1 must be running in Timer mode or Synchro-
nized Counter mode if the CCP module is using the
compare feature. In Asynchronous Counter mode, the
compare operation may not work.
9.2.3
When generate software interrupt is chosen the CCP1
pin is not affected. Only a CCP interrupt is generated (if
enabled).
TABLE 9-2:
© 2005 Microchip Technology Inc.
0Bh, 8Bh,
10Bh, 18Bh
0Ch
8Ch
86h, 186h
0Eh
0Fh
10h
15h
16h
17h
Legend:
Address
Note:
CCP PIN CONFIGURATION
Clearing the CCP1CON register will force
the RB3/CCP1 compare output latch to
the default low level. This is not the data
latch.
TIMER1 MODE SELECTION
SOFTWARE INTERRUPT MODE
INTCON
PIR1
PIE1
TRISB
TMR1L
TMR1H
T1CON
CCPR1L
CCPR1H
CCP1CON
x = unknown, u = unchanged, - = unimplemented read as ‘0’. Shaded cells are not used by Capture and Timer1.
Name
REGISTERS ASSOCIATED WITH CAPTURE, COMPARE, AND TIMER1
PORTB Data Direction Register
Holding Register for the Least Significant Byte of the 16-bit TMR1 Register
Holding Register for the Most Significant Byte of the 16-bit TMR1 Register
Capture/Compare/PWM Register1 (LSB)
Capture/Compare/PWM Register1 (MSB)
EEIE CMIE
Bit 7 Bit 6
EEIF CMIF
GIE
—
—
PEIE
—
—
T1CKPS1 T1CKPS0 T1OSCEN T1SYNC TMR1CS TMR1ON --00 0000 --uu uuuu
CCP1X
RCIE
RCIF
Bit 5
T0IE
CCP1Y
INTE
Bit 4
TXIF
TXIE
PIC16F627A/628A/648A
CCP1M3 CCP1M2 CCP1M1 CCP1M0 --00 0000 --00 0000
RBIE
Bit 3
—
—
9.2.4
In this mode (CCP1M<3:0>=1011), an internal hard-
ware trigger is generated, which may be used to initiate
an action. See Register 9-1.
The special event trigger output of the CCP occurs
immediately upon a match between the TMR1H,
TMR1L register pair and CCPR1H, CCPR1L register
pair. The TMR1H, TMR1L register pair is not reset until
the next rising edge of the TMR1 clock. This allows the
CCPR1 register pair to effectively be a 16-bit program-
mable period register for Timer1. The special event
trigger output also starts an A/D conversion provided
that the A/D module is enabled.
Note:
CCP1IF
CCP1IE TMR2IE TMR1IE 0000 -000 0000 -000
Bit 2
T0IF
SPECIAL EVENT TRIGGER
Removing the match condition by chang-
ing the contents of the CCPR1H, CCPR1L
register pair between the clock edge that
generates the special event trigger and
the clock edge that generates the TMR1
Reset will preclude the Reset from
occuring.
TMR2IF
INTF
Bit 1
TMR1IF 0000 -000 0000 -000
RBIF
Bit 0
0000 000x 0000 000u
1111 1111 1111 1111
xxxx xxxx uuuu uuuu
xxxx xxxx uuuu uuuu
xxxx xxxx uuuu uuuu
xxxx xxxx uuuu uuuu
Value on
POR
DS40044D-page 57
Value on
all other
Resets