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参数资料
| 型号： | PIC16F676-E/SL |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, FLASH, 20 MHz, RISC MICROCONTROLLER, PDSO14 |
| 封装： | 3.90 MM, LEAD FREE, PLASTIC, SOIC-14 |
| 文件页数： | 104/132页 |
| 文件大小： | 1344K |
| 代理商： | PIC16F676-E/SL |
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2010 Microchip Technology Inc.
DS40039F-page 73
PIC16F630/676
10.0 INSTRUCTION SET SUMMARY
The PIC16F630/676 instruction set is highly orthogonal
and is comprised of three basic categories:
Byte-oriented operations
Bit-oriented operations
Literal and control operations
Each PIC16 instruction is a 14-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 formats for each of the
categories is presented in Figure 10-1, while the
various opcode fields are summarized in Table 10-1.
Table 10-2 lists the instructions recognized by the
MPASMTM assembler. A complete description of each
instruction is also available in the PIC Mid-Range Ref-
erence Manual (DS33023).
For byte-oriented instructions, ‘f’ represents a file
register designator and ‘d’ represents a destination
designator. The file register designator specifies which
file register is to be used by the instruction.
The destination designator specifies where the result of
the operation is to be placed. If ‘d’ is zero, the result is
placed in the W register. If ‘d’ is one, the result is placed
in the file register specified in the instruction.
For bit-oriented instructions, ‘b’ represents a bit field
designator, which selects the bit affected by the
operation, while ‘f’ represents the address of the file in
which the bit is located.
For literal and control operations, ‘k’ represents an
8-bit or 11-bit constant, or literal value
One instruction cycle consists of four oscillator periods;
for an oscillator frequency of 4 MHz, this gives a normal
instruction execution time of 1
s. All instructions are
executed within a single instruction cycle, unless a
conditional test is true, or the program counter is
changed as a result of an instruction. When this occurs,
the execution takes two instruction cycles, with the
second cycle executed as a NOP.
All instruction examples use the format ‘0xhh’ to
represent a hexadecimal number, where ‘h’ signifies a
hexadecimal digit.
10.1
READ-MODIFY-WRITE
OPERATIONS
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 CLRF PORTA instruction will read
PORTA, clear all the data bits, then write the result back
to PORTA. This example would have the unintended
result of clearing the condition that set the RAIF flag.
TABLE 10-1:
OPCODE FIELD
DESCRIPTIONS
FIGURE 10-1:
GENERAL FORMAT FOR
INSTRUCTIONS
Note:
To maintain upward compatibility with
future products, do not use the OPTION
and TRIS instructions.
Field
Description
f
Register file address (0x00 to 0x7F)
W
Working register (accumulator)
b
Bit address within an 8-bit file register
k
Literal field, constant data or label
x
Don’t care location (= 0 or 1).
The assembler will generate code with x = 0.
It is the recommended form of use for
compatibility with all Microchip software tools.
d
Destination select; d = 0: store result in W,
d = 1: store result in file register f.
Default is d = 1.
PC
Program Counter
TO
Time-out bit
PD
Power-down bit
Byte-oriented file register operations
13
8
7
6
0
d = 0 for destination W
OPCODE
d
f (FILE #)
d = 1 for destination f
f = 7-bit file register address
Bit-oriented file register operations
13
10 9
7 6
0
OPCODE
b (BIT #)
f (FILE #)
b = 3-bit bit address
f = 7-bit file register address
Literal and control operations
13
8
7
0
OPCODE
k (literal)
k = 8-bit immediate value
13
11
10
0
OPCODE
k (literal)
k = 11-bit immediate value
General
CALL
and GOTO instructions only
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PIC16F676-I/ML | 功能描述:8位微控制器 -MCU 1.75 KB 64 RAM 12I/O RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| PIC16F676-I/P | 功能描述:8位微控制器 -MCU 1.75KB 64 RAM 12 I/O Ind Temp PDIP14 RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| PIC16F676-I/P | 制造商:Microchip Technology Inc 功能描述:IC 8BIT FLASH MCU 16F676 DIP14 |
| PIC16F676-I/SL | 功能描述:8位微控制器 -MCU 1.75KB 64 RAM 12 I/O Ind Temp SOIC14 RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| PIC16F676-I/SL | 制造商:Microchip Technology Inc 功能描述:8BIT FLASH MCU SMD 16F676 SOIC14 |
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