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參數(shù)資料
| 型號： | PIC16F876A |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | 28/40-pin Enhanced FLASH Microcontrollers |
| 中文描述： | 28/40-pin增強(qiáng)閃存微控制器 |
| 文件頁數(shù)： | 159/222頁 |
| 文件大小： | 4013K |
| 代理商： | PIC16F876A |
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2001 Microchip Technology Inc.
Advance Information
DS39582A-page 157
PIC16F87XA
15.0
INSTRUCTION SET SUMMARY
The PIC16 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 15-1, while the various opcode
fields are summarized in Table 15-1.
Table 13-2 lists the instructions recognized by the
MPASM
TM
Assembler. A complete description of each
instruction is also available in the PICmicro Mid-
Range Reference Manual (DS33023).
For
byte-oriented
instructions, ‘
f
’ represents a file reg-
ister designator and ‘
d
’ represents a destination desig-
nator. 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 opera-
tion, while ‘
f
’ represents the address of the file in which
the bit is located.
For
literal and control
operations, ‘
k
’ represents an
eight- or eleven-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 μs. All instructions are
executed within a single instruction cycle, unless a con-
ditional test is true or the program counter is changed
as a result of an instruction. When this occurs, the exe-
cution takes two instruction cycles with the second
cycle executed as a
NOP
.
All instruction examples use the format ‘0xhh’ to repre-
sent a hexadecimal number, where ‘h’ signifies a hexa-
decimal digit.
15.1
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 PORTB
” instruction will read
PORTB, clear all the data bits, then write the result
back to PORTB. This example would have the unin-
tended result that the condition that sets the RBIF flag
would be cleared.
TABLE 15-1:
OPCODE FIELD
DESCRIPTIONS
FIGURE 15-1:
GENERAL FORMAT FOR
INSTRUCTIONS
Note:
To maintain upward compatibility with
future PIC16F87XA products, do not use
the
OPTION
and
TRIS
instructions.
Field
Description
f
Register file address (0x00 to 0x7F)
Working register (accumulator)
Bit address within an 8-bit file register
Literal field, constant data or label
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.
Destination select; d =
0
: store result in W,
d = 1: store result in file register f.
Default is d =
1.
Program Counter
Time-out bit
Power-down bit
W
b
k
x
d
PC
TO
PD
Byte-oriented file register operations
13 8 7 6 0
OPCODE d f (FILE #)
d = 0 for destination W
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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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PIC16F876A-E/AP | 制造商:Microchip Technology Inc 功能描述:MCU PICMICRO - PIC16FXXX FLASH *NIC* |
| PIC16F876A-E/ML | 功能描述:8位微控制器 -MCU 14KB 368 RAM 22 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| PIC16F876A-E/SO | 功能描述:8位微控制器 -MCU 14KB 368 RAM 22 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| PIC16F876A-E/SP | 功能描述:8位微控制器 -MCU 14KB 368 RAM 22 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| PIC16F876A-E/SS | 功能描述:8位微控制器 -MCU 14KB 368 RAM 22 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
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