PIC16F877-04E/PT Microchip Technology, PIC16F877-04E/PT Datasheet - Page 542

• Manufacturer Part Number: PIC16F877-04E/PT
• Description: IC MCU FLASH 8KX14 EE 44TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F877-04E/PT

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 4MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 33
• Program Memory Size: 14KB (8K x 14)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 368 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 44-TQFP, 44-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: PIC16F87704E/PT

PICmicro MID-RANGE MCU FAMILY
DS31029A-page 29-20
COMF
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Q Cycle Activity:
Example 1
Example 2
Example 3
Q1
Decode
Q2
register 'f'
[ label ] COMF
0
d
(f)
Z
The contents of register 'f' are 1’s complemented. If 'd' is 0 the result is
stored in W. If 'd' is 1 the result is stored back in register 'f'.
1
1
Before Instruction
After Instruction
Before Instruction
After Instruction
Before Instruction
After Instruction
Read
COMF
COMF
COMF
00
f
[0,1]
destination
127
REG1=
REG1=
W
FSR =
Contents of Address (FSR)=0xAA
FSR =
Contents of Address (FSR)=0x55
REG1=
REG1=
Z
Complement f
REG1, 0
INDF, 1
REG1, 1
1001
Q3
Process
=
=
data
0x13
0x13
0xEC
0xC2
0xC2
0xFF
0x00
1
f,d
dfff
Q4
destination
Write to
ffff
1997 Microchip Technology Inc.