Instrukcja obsługi Microchip AT89C51AC2

Microchip Niesklasyfikowane AT89C51AC2

Przeczytaj poniżej 📖 instrukcję obsługi w języku polskim dla Microchip AT89C51AC2 (116 stron) w kategorii Niesklasyfikowane. Ta instrukcja była pomocna dla 2 osób i została oceniona przez 2 użytkowników na średnio 4.5 gwiazdek

Pobierz PDF
Strona 1/116
Atmel 8051 Microcontrollers
Hardware Manual
Atmel 8051 Microcontrollers Hardware Manual 1
4316E–8051–01/07
Table of Contents
Section 1
The 8051 Instruction Set....................................................................... 1-2
1.1 Program Status Word................................................................................1-2
1.2 Addressing Modes ....................................................................................1-3
1.3 Arithmetic Instructions...............................................................................1-5
1.4 Logical Instructions ...................................................................................1-6
1.5 Data Transfers .........................................................................................1-7
1.6 External RAM.........................................................................................1-10
1.7 Lookup Tables .......................................................................................1-10
1.8 Boolean Instructions ...............................................................................1-11
1.9 Jump Instructions ....................................................................................1-13
1.10 Read-Modify-Write Instruction Features .................................................1-15
1.11 Instruction Set Summary.........................................................................1-16
1.12 Instructions That Affect Flag Settings .....................................................1-20
1.13 Instruction Table .....................................................................................1-21
1.14 Instruction Definitions..............................................................................1-24
Section 2
Common Features Description ........................................................... 2-66
2.1 Introduction ............................................................................................2-66
2.2 Special Function Registers .....................................................................2-68
2.3 Oscillator and Clock Circuit .....................................................................2-70
2.4 CPU Timing.............................................................................................2-71
2.5 Port Structures and Operation ................................................................2-73
2.6 Accessing External Memory....................................................................2-77
2.7 PSEN ......................................................................................................2-78
2.8 ALE .........................................................................................................2-79
2.9 Timer/Counters .......................................................................................2-81
2.10 Timer 0....................................................................................................2-82
2.11 Timer 1....................................................................................................2-84
2.12 Timer 2....................................................................................................2-89
2.13 Serial Interface........................................................................................2-94
2.14 Framing Error Detection........................................................................2-104
2.15 Automatic Address Recognition ............................................................2-105
2.16 Interrupts ...............................................................................................2-112
Atmel 8051 Microcontrollers Hardware Manual 1-1
Rev. 4316E–8051–01/07
Section 1
The 8051 Instruction Set
The 8051 instruction set is optimized for 8-bit control applications. It provides a variety of
fast addressing modes for accessing the internal RAM to facilitate byte operations on
small data structures. The instruction set provides extensive support for one-bit vari-
ables as a separate data type, allowing direct bit manipulation in control and logic
systems that require Boolean processing.
An overview of the 8051 instruction set is presented below, with a brief description of
how certain instructions might be used.
1.1 Program Status
Word
The Program Status Word (PSW) contains several status bits that reflect the current
state of the CPU. The PSW, shown in Table 1-1 on page 3, resides in SFR space. It
contains the Carry bit, the Auxiliary Carry (for BCD operations), the two register bank
select bits, the Overflow flag, a parity bit, and two user-definable status flags.
The Carry bit, other than serving the functions of a Carry bit in arithmetic operations,
also serves as the “Accumulator” for a number of Boolean operations.
The bits RS0 and RS1 are used to select one of the four register banks shown below.
A number of instructions refer to these RAM locations as R0 through R7. The selection
of which of the four banks is being referred to is made on the basis of the bits RS0 and
RS1 at execution time.
The parity bit reflects the number of 1’s in the Accumulator: P = 1 if the Accumulator
contains an odd number of 1’s, and P = 0 if the Accumulator contains an even number of
1’s. Thus the number of 1’s in the Accumulator plus P is always even.
Two bits in the PSW are uncommitted and may be used as general purpose status flags.
The PSW register contains program status information as detailed in Table 1-1.

Specyfikacje produktu

Marka: Microchip
Kategoria: Niesklasyfikowane
Model: AT89C51AC2

Potrzebujesz pomocy?

Jeśli potrzebujesz pomocy z Microchip AT89C51AC2, zadaj pytanie poniżej, a inni użytkownicy Ci odpowiedzą


Instrukcje Niesklasyfikowane Microchip

Microchip

Microchip AT91SAM9M11 Instrukcja

15 Stycznia 2025
Microchip

Microchip AT91SAM9261 Instrukcja

15 Stycznia 2025
Microchip

Microchip AT91SAM9CN12 Instrukcja

15 Stycznia 2025
Microchip

Microchip ATA5749C Instrukcja

15 Stycznia 2025
Microchip

Microchip ATECC508A Instrukcja

15 Stycznia 2025
Microchip

Microchip ATECC608C-TNGTLS Instrukcja

15 Stycznia 2025
Microchip

Microchip ATECC608C-TCSM Instrukcja

15 Stycznia 2025
Microchip

Microchip ATMXT144UD-SL Instrukcja

15 Stycznia 2025
Microchip

Microchip ATMXT1296M1 Instrukcja

15 Stycznia 2025
Microchip

Microchip ATMEGA162 Instrukcja

15 Stycznia 2025

Instrukcje Niesklasyfikowane

Najnowsze instrukcje dla Niesklasyfikowane

GBC

GBC ThermaBind T500Pro Instrukcja

15 Stycznia 2025
Da-Lite

Da-Lite Parallax 29850 Instrukcja

15 Stycznia 2025
Crivit

Crivit IAN 290909 Instrukcja

15 Stycznia 2025
Tripp Lite

Tripp Lite SmartRack SRW12US Instrukcja

15 Stycznia 2025
Powerfix

Powerfix IAN 280221 Instrukcja

15 Stycznia 2025
AGM

AGM Rattler TC35-640 Instrukcja

15 Stycznia 2025
AGM

AGM Wolf-7 Pro Instrukcja

15 Stycznia 2025
AGM

AGM Anaconda TC50-640 Instrukcja

15 Stycznia 2025
AGM

AGM Secutor Pro TS50-640 Instrukcja

15 Stycznia 2025
Vogel's

Vogel's RISE A122 Instrukcja

15 Stycznia 2025