PIC18F4431-E/ML Microchip Technology, PIC18F4431-E/ML Datasheet - Page 319

• Manufacturer Part Number: PIC18F4431-E/ML
• Description: IC MCU FLASH 8KX16 44QFN
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F4431-E/ML

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, Power Control PWM, QEI, POR, PWM, WDT
• Number Of I /o: 36
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 9x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 44-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

SUBLW
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example 1:
Example 2:
Example 3:
 2010 Microchip Technology Inc.
Q Cycle Activity:
Before Instruction
After Instruction
Before Instruction
After Instruction
Before Instruction
After Instruction
Decode
W
C
W
C
Z
N
W
C
W
C
Z
N
W
C
W
C
Z
N
Q1
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
literal ‘k’
Subtract W from Literal
[ label ] SUBLW k
0 k 255
k – (W) W
N, OV, C, DC, Z
W is subtracted from the 8-bit
literal, ‘k’. The result is placed in W.
1
1
SUBLW
SUBLW
SUBLW
Read
Q2
0000
1
?
1
1
0
0
2
?
0
1
1
0
3
?
FF ; (2’s complement)
0
0
1
; result is negative
; result is positive
; result is zero
0x02
0x02
0x02
1000
Process
Data
Q3
kkkk
Write to
PIC18F2331/2431/4331/4431
Q4
W
kkkk
SUBWF
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example 1:
Example 2:
Example 3:
Q Cycle Activity:
Before Instruction
After Instruction
Before Instruction
After Instruction
Before Instruction
After Instruction
Decode
REG
W
C
REG
W
C
Z
N
REG
W
C
REG
W
C
Z
N
REG
W
C
REG
W
C
Z
N
Q1
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
register ‘f’
Subtract W from f
[ label ] SUBWF
0 f 255
d  [0,1]
a  [0,1]
(f) – (W) dest
N, OV, C, DC, Z
Subtract W from register, ‘f’ (2’s
complement method). If ‘d’ is ‘0’, the
result is stored in W. If ‘d’ is ‘1’, the
result is stored back in register, ‘f’.
If = ‘a’ is ‘0’, the Access Bank will be
selected, overriding the BSR value. If
‘a’ is ‘1’, then the bank will be selected
as per the BSR value.
1
1
SUBWF
SUBWF
SUBWF
Read
Q2
0101
3
2
?
1
2
1
0
0
2
2
?
2
0
1
1
0
0x01
0x02
?
0xFFh ; (2’s complement)
0x02
0x00
0x00
0x01
REG
REG, W
REG
; result is positive
; result is negative
; result is zero
11da
Process
Data
Q3
DS39616D-page 319
f [,d [,a]]
ffff
destination
Write to
Q4
ffff