PIC16F877-20/L Microchip Technology, PIC16F877-20/L Datasheet - Page 531

• Manufacturer Part Number: PIC16F877-20/L
• Description: IC MCU FLASH 8KX14 EE 44PLCC
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F877-20/L

• Program Memory Type: FLASH
• Program Memory Size: 14KB (8K x 14)
• Package / Case: 44-PLCC
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 33
• 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: 0°C ~ 70°C
• Processor Series: PIC16F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 368 B
• Interface Type: MSSP/PSP/USART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 33
• Number Of Timers: 3
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, DM163022, DV164120
• Minimum Operating Temperature: 0 C
• On-chip Adc: 8-ch x 10-bit
• Data Rom Size: 256 B
• Height: 3.87 mm
• Length: 16.59 mm
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4 V
• Width: 16.59 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC164309 - MODULE SKT FOR PM3 44PLCC444-1001 - DEMO BOARD FOR PICMICRO MCUDVA16XL441 - ADAPTER DEVICE ICE 44PLCC309-1040 - ADAPTER 44-PLCC ZIF TO 40-DIP309-1039 - ADAPTER 44-PLCC TO 40-DIPDV007003 - PROGRAMMER UNIVERSAL PROMATE II
• 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