PIC16F872-E/SS Microchip Technology, PIC16F872-E/SS Datasheet - Page 531

• Manufacturer Part Number: PIC16F872-E/SS
• Description: IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,SSOP,28PIN,PLASTIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F872-E/SS

• Rohs Compliant: YES
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 22
• Program Memory Size: 3.5KB (2K x 14)
• Program Memory Type: FLASH
• Eeprom Size: 64 x 8
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 5x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 28-SSOP
• Package: 28SSOP
• Device Core: PIC
• Family Name: PIC16
• Maximum Speed: 20 MHz
• Operating Supply Voltage: 5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 22
• Interface Type: I2C/SPI
• On-chip Adc: 5-chx10-bit
• Number Of Timers: 3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

1997 Microchip Technology Inc.
ADDWF
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Q Cycle Activity:
Example 1
Example 2
Example 3
Q1
Case 1:
Case 2:
Decode
Q2
register 'f'
[ label ] ADDWF
0
d
(W) + (f)
C, DC, Z
Add the contents of the W register with register 'f'. If 'd' is 0 the result is stored in the
W register. 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
Before Instruction
After Instruction
Read
ADDWF
ADDWF
ADDWF
00
f
Section 29. Instruction Set
127
W
FSR = 0xC2
W
FSR = 0xC2
W
FSR = 0xC2
Contents of Address (FSR) = 0x20
W
FSR = 0xC2
Contents of Address (FSR) = 0x37
W
PCL = 0x37
C
PCL = 0x47
C
W
PCL = 0xF7
PCH = 0x08
C
PCL = 0x07
PCH = 0x08
C
Add W and f
FSR, 0
INDF, 1
PCL
0111
Q3
destination
Process
= 0x17
= 0xD9
= 0x17
= 0x17
= 0x10
= 0
= 0x10
= x
= x
= 1
data
f,d
dfff
Q4
destination
Write to
ffff
.
DS31029A-page 29-9
29