PIC16F628A-I/P Microchip Technology Inc., PIC16F628A-I/P Datasheet - Page 117

• Manufacturer Part Number: PIC16F628A-I/P
• Description: 18 PIN, 3.5 KB FLASH, 224 RAM, 16 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC16F628A-I/P

• Comparators: 2
• Cpu Speed: 5 MIPS
• Eeprom Memory: 128 Bytes
• Input Output: 16
• Interface: USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 18-pin PDIP
• Programmable Memory: 3.5K Bytes
• Ram Size: 224 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

 2003 Microchip Technology Inc.
IORLW
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example
IORWF
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example
Inclusive OR Literal with W
[ label ]
0 ≤ k ≤ 255
(W) .OR. k → (W)
Z
11
OR’ed with the eight bit literal 'k'.
The result is placed in the W
register.
1
1
IORLW
Before Instruction
After Instruction
Inclusive OR W with f
[ label ]
0 ≤ f ≤ 127
d ∈ [0,1]
(W) .OR. (f) → (dest)
Z
00
Inclusive OR the W register with
register 'f'. If 'd' is 0 the result is
placed in the W register. If 'd' is
1 the result is placed back in
register 'f'.
1
1
IORWF
Before Instruction
After Instruction
The contents of the W register is
REG1 = 0x13
W
REG1 = 0x13
W
Z
W = 0x9A
W = 0xBF
Z = 0
1000
0x35
0100
REG1, 0
IORLW k
IORWF
= 0x91
= 0x93
= 1
kkkk
dfff
f,d
kkkk
ffff
Preliminary
MOVLW
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example
MOVF
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example
Move Literal to W
[ label ]
0 ≤ k ≤ 255
k → (W)
None
11
The eight bit literal 'k' is loaded
into W register. The don’t cares
will assemble as 0’s.
1
1
MOVLW
After Instruction
Move f
[ label ]
0 ≤ f ≤ 127
d ∈ [0,1]
(f) → (dest)
Z
00
The contents of register f is
moved to a destination depen-
dent upon the status of d. If d =
0, destination is W register. If d
= 1, the destination is file regis-
ter f itself. d = 1 is useful to test
a file register since status flag Z
is affected.
1
1
MOVF
After Instruction
W = value in REG1 register
Z = 1
PIC16F62X
W = 0x5A
00xx
0x5A
1000
REG1, 0
MOVLW k
MOVF f,d
DS40300C-page 115
kkkk
dfff
kkkk
ffff