PIC16F877A-I/PT Microchip Technology Inc., PIC16F877A-I/PT Datasheet - Page 142

• Manufacturer Part Number: PIC16F877A-I/PT
• Description: 44 PIN, 7 KB FLASH, 368 RAM, 33 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC16F877A-I/PT

• A/d Inputs: 8-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 5 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 33
• Interface: I2C/SPI/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 44-pin TQFP
• Programmable Memory: 14K Bytes
• Ram Size: 368 Bytes
• Speed: 20 MHz
• Timers: 2-8-bit, 1-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

PIC16F87X
MOVF
Syntax:
Operands:
Operation:
Status Affected:
Description:
MOVLW
Syntax:
Operands:
Operation:
Status Affected:
Description:
MOVWF
Syntax:
Operands:
Operation:
Status Affected:
Description:
DS30292C-page 140
Move f
[ label ]
0
d
(f)
Z
The contents of register f are
moved to a destination dependant
upon the status of d. If d = 0,
destination is W register. If d = 1,
the destination is file register f itself.
d = 1 is useful to test a file register,
since status flag Z is affected.
Move Literal to W
[ label ]
0
k
None
The eight bit literal ’k’ is loaded
into W register. The don’t cares
will assemble as 0’s.
Move W to f
[ label ]
0
(W)
None
Move data from W register to
register 'f'.
f
k
f
[0,1]
(W)
(destination)
127
127
(f)
255
MOVF f,d
MOVLW k
MOVWF
f
NOP
Syntax:
Operands:
Operation:
Status Affected:
Description:
RETFIE
Syntax:
Operands:
Operation:
Status Affected:
RETLW
Syntax:
Operands:
Operation:
Status Affected:
Description:
No Operation
[ label ]
None
No operation
None
No operation.
Return from Interrupt
[ label ]
None
TOS
1
None
Return with Literal in W
[ label ]
0
k
TOS
None
The W register is loaded with the
eight bit literal 'k'. The program
counter is loaded from the top of
the stack (the return address).
This is a two-cycle instruction.
k
GIE
(W);
2001 Microchip Technology Inc.
255
PC,
PC
NOP
RETFIE
RETLW k