PIC18F452-I/P Microchip Technology, PIC18F452-I/P Datasheet - Page 249

• Manufacturer Part Number: PIC18F452-I/P
• Description: IC MCU FLASH 16KX16 EE 40DIP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F452-I/P

• Program Memory Type: FLASH
• Program Memory Size: 32KB (16K x 16)
• Package / Case: 40-DIP (0.600", 15.24mm)
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 34
• Eeprom Size: 256 x 8
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 1.5 KB
• Interface Type: MSSP/SPI/I2C/PSP/USART
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 34
• Number Of Timers: 4
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, ICE4000, DV164136, DM163022
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8-ch x 10-bit
• Package: 40PDIP
• Device Core: PIC
• Family Name: PIC18
• Maximum Speed: 40 MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 444-1001 - DEMO BOARD FOR PICMICRO MCUACICE0206 - ADAPTER MPLABICE 40P 600 MIL
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: PIC18F452I/P; Q1176145

SUBLW
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example 1:
Example 2:
Example 3:
Q Cycle Activity:
2002 Microchip Technology Inc.
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 – (W)
N, OV, C, DC, Z
W is subtracted from the eight-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
k
; result is negative
; result is positive
; result is zero
255
0x02
0x02
0x02
1000
W
Process
Data
Q3
kkkk
Write to W
Q4
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
d
a
(f) – (W)
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 regis-
ter 'f' (default). 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 (default).
1
1
SUBWF
SUBWF
SUBWF
Read
Q2
0101
3
2
?
1
2
1
0
0
2
2
?
2
0
1
1
0
1
2
?
FFh ;(2’s complement)
2
0
0
1
f
[0,1]
[0,1]
PIC18FXX2
; result is positive
; result is zero
; result is negative
255
REG, 1, 0
REG, 0, 0
REG, 1, 0
11da
Process
dest
Data
Q3
DS39564B-page 247
ffff
f [,d [,a]
destination
Write to
Q4
ffff