PIC18F2431-I/SO Microchip Technology, PIC18F2431-I/SO Datasheet - Page 300

• Manufacturer Part Number: PIC18F2431-I/SO
• Description: IC PIC MCU FLASH 8KX16 28SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F2431-I/SO

• Program Memory Type: FLASH
• Program Memory Size: 16KB (8K x 16)
• Package / Case: 28-SOIC (7.5mm Width)
• 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: 24
• Eeprom Size: 256 x 8
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 5x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 768 B
• Interface Type: EUSART/I2C/SPI/SSP
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 24
• Number Of Timers: 4
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, ICE4000, DM183021, DV164136
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 5-ch x 10-bit
• Package: 28SOIC W
• Device Core: PIC
• Family Name: PIC18
• Maximum Speed: 40 MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT28SO-1 - SOCKET TRANSITION 28SOIC 300MILI3-DB18F4431 - BOARD DAUGHTER ICEPIC3
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

PIC18F2331/2431/4331/4431
COMF
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example:
DS39616D-page 300
Q Cycle Activity:
Before Instruction
After Instruction
Decode
REG
REG
W
Q1
=
=
=
register ‘f’
Complement f
[ label ] COMF
0  f  255
d  [0,1]
a  [0,1]
(f)  dest
N, Z
The contents of register, ‘f’, are comple-
mented. 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’ = 1, then the bank will be
selected as per the BSR value.
1
1
COMF
Read
0001
Q2
0x13
0x13
0xEC
11da
REG, W
Process
Data
Q3
f [,d [,a]]
ffff
destination
Write to
Q4
ffff
CPFSEQ
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example:
Q Cycle Activity:
If skip:
If skip and followed by 2-word instruction:
Before Instruction
After Instruction
operation
operation
operation
Decode
PC Address
W
REG
If REG
If REG
No
No
No
Q1
Q1
Q1
PC
PC
register ‘f’
operation
operation
operation
Compare f with W, Skip if f = W
[ label ] CPFSEQ
0  f  255
a  [0,1]
(f) – (W),
skip if (f) = (W)
(unsigned comparison)
None
Compares the contents of data memory
location, ‘f’, to the contents of W by
performing an unsigned subtraction.
If ‘f’ = W, then the fetched instruction is
discarded and a NOP is executed
instead, making this a two-cycle
instruction. If ‘a’ is ‘0’, the Access Bank
will be selected, overriding the BSR
value. If ‘a’ = 1, then the bank will be
selected as per the BSR value.
1
1(2)
Note:
HERE
NEQUAL
EQUAL
Read
0110
No
No
No
Q2
Q2
Q2
=
=
=
=
=

=
 2010 Microchip Technology Inc.
3 cycles if skip and followed
by a 2-word instruction.
HERE
?
?
W;
Address (EQUAL)
W;
Address (NEQUAL)
CPFSEQ REG
:
:
001a
operation
operation
operation
Process
Data
No
No
No
Q3
Q3
Q3
f [,a]
ffff
operation
operation
operation
operation
No
No
No
No
Q4
Q4
Q4
ffff