PIC18LF2331-I/SP Microchip Technology, PIC18LF2331-I/SP Datasheet - Page 283
![IC MCU FLASH 4KX16 28-DIP](/photos/6/59/65908/150-28-dip_sml.jpg)
PIC18LF2331-I/SP
Manufacturer Part Number
PIC18LF2331-I/SP
Description
IC MCU FLASH 4KX16 28-DIP
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F818-ISO.pdf
(6 pages)
3.PIC18F2331-ISO.pdf
(392 pages)
4.PIC18F2331-ISO.pdf
(8 pages)
5.PIC18F2331-ISO.pdf
(6 pages)
6.PIC18F2331-ISO.pdf
(16 pages)
7.PIC18LF2331-ISO.pdf
(4 pages)
8.PIC18LF2331-ISO.pdf
(40 pages)
Specifications of PIC18LF2331-I/SP
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
Program Memory Size
8KB (4K x 16)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 5x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
28-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- PIC16F616T-ISL PDF datasheet
- PIC16F818-ISO PDF datasheet #2
- PIC18F2331-ISO PDF datasheet #3
- PIC18F2331-ISO PDF datasheet #4
- PIC18F2331-ISO PDF datasheet #5
- PIC18F2331-ISO PDF datasheet #6
- PIC18LF2331-ISO PDF datasheet #7
- PIC18LF2331-ISO PDF datasheet #8
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24.0
The PIC18 instruction set adds many enhancements to
the previous PIC
easy migration from these PIC instruction sets.
Most instructions are a single program memory word
(16 bits), but there are three instructions that require
two program memory locations.
Each single-word instruction is a 16-bit word divided
into an opcode, which specifies the instruction type and
one or more operands, which further specify the
operation of the instruction.
The instruction set is highly orthogonal and is grouped
into four basic categories:
• Byte-oriented operations
• Bit-oriented operations
• Literal operations
• Control operations
The PIC18 instruction set summary in
byte-oriented, bit-oriented, literal and control
operations.
descriptions.
Most byte-oriented instructions have three operands:
1.
2.
3.
The file register designator, ‘f’, specifies which file
register is to be used by the instruction.
The destination designator, ‘d’, specifies where the result
of the operation is to be placed. If ‘d’ is ‘0’, the result is
placed in the WREG register. If ‘d’ is ‘1’, the result is
placed in the file register specified in the instruction.
All bit-oriented instructions have three operands:
1.
2.
3.
The bit field designator, ‘b’, selects the number of the bit
affected by the operation, while the file register desig-
nator, ‘f’, represents the number of the file in which the
bit is located.
The literal instructions may use some of the following
operands:
• A literal value to be loaded into a file register
• The desired FSR register to load the literal value
• No operand required
2010 Microchip Technology Inc.
(specified by ‘k’)
into (specified by ‘f’)
(specified by ‘—’)
The file register (specified by ‘f’)
The destination of the result
(specified by ‘d’)
The accessed memory
(specified by ‘a’)
The file register (specified by ‘f’)
The bit in the file register
(specified by ‘b’)
The accessed memory
(specified by ‘a’)
INSTRUCTION SET SUMMARY
Table 24-1
®
instruction sets, while maintaining an
shows the opcode field
Table 24-2
PIC18F2331/2431/4331/4431
lists
The control instructions may use some of the following
operands:
• A program memory address (specified by ‘n’)
• The mode of the call or return instructions
• The mode of the table read and table write
• No operand required
All instructions are a single word, except for three
double-word instructions. These three instructions were
made double word instructions so that all the required
information is available in these 32 bits. In the second
word, the 4 MSbs are ‘1’s. If this second word is
executed as an instruction (by itself), it will execute as a
NOP.
All single-word instructions are executed in a single
instruction cycle, unless a conditional test is true or the
program counter is changed as a result of the instruc-
tion. In these cases, the execution takes two instruction
cycles with the additional instruction cycle(s) executed
as a NOP.
The double word instructions execute in two instruction
cycles.
One instruction cycle consists of four oscillator periods.
Thus, for an oscillator frequency of 4 MHz, the normal
instruction execution time is 1 s. If a conditional test is
true or the program counter is changed as a result of
an instruction, the instruction execution time is 2 s.
Two-word branch instructions (if true) would take 3 s.
Figure 24-1
instructions can have.
All examples use the format ‘nnh’ to represent a hexa-
decimal number, where ‘h’ signifies a hexadecimal
digit.
The Instruction Set Summary, shown in
lists the instructions recognized by the Microchip
Assembler
“Instruction Set”
instruction.
24.1
Any instruction that specifies a file register as part of
the instruction performs a Read-Modify-Write (R-M-W)
operation. The register is read, the data is modified,
and the result is stored according to either the instruc-
tion or the destination designator, ‘d’. A read operation
is performed on a register even if the instruction writes
to that register.
For example, a “BCF PORTB, 1” instruction will read
PORTB, clear bit 1 of the data, then write the result back
to PORTB. The read operation would have the unin-
tended result that any condition that sets the RBIF flag
would be cleared. The R-M-W operation may also copy
the level of an input pin to its corresponding output latch.
(specified by ‘s’)
instructions (specified by ‘m’)
(specified by ‘—’)
Read-Modify-Write Operations
(MPASM
shows the general formats that the
provides a description of each
TM
Assembler).
DS39616D-page 283
Section 24.2
Table
24-2,
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