MAN B&W 1881610-7 MCU MODUL

MAN B&W 1881610-7 MCU MODUL 

Brand Introduction

The MAN Group was founded in 1758. The three letters MAN consist of the initials of the company's predecessor Maschinenfabrik Augsburg Nürnberg. Headquartered in Munich, Germany, it is one of Europe's leading engineering groups with around 52,500 employees in 120 countries around the world working in the five core areas of commercial vehicles, industrial services, printing systems, diesel engines and turbines, with a comprehensive range of competences, system solutions and annual sales of 16.5 billion euros (2011). MAN Group is one of the world's top 500 companies with joint ventures and other partnerships with local companies in India, Poland, Turkey and the USA.

Single-Chip Microcomputer

Single-chip microcomputer (Single-Chip Microcomputer) is an integrated circuit chip, is the use of ultra-large-scale integrated circuit technology with data processing capabilities of the central processor CPU, random memory RAM, read-only memory ROM, a variety of I / O ports and interrupt systems, timers / counters and other functions (which may also include the display driver circuits, pulse width modulation circuits) integrated into a silicon chip constitutes a small perfect microcomputer system. (may also include display driver circuits, pulse width modulation circuits, analogue multiplexers, A/D converters and other circuits) integrated into a piece of silicon constitutes a small but perfect micro-computer system, widely used in the field of industrial control. From the 1980s, from the then 4-bit, 8-bit microcontroller, the development of the current 300M high-speed microcontroller.

Components of 51 microcontrollers

Logic components of the MCS-51 microcontroller, including an 8-bit CPU and on-chip oscillator, 80514B mask ROM, 87514KBEPROM, 8031 no ROM, special function register SFR128BRAM, timer/counter T0 and T1, parallel I/O interfaces: P0, P1, P2, P3; serial interfaces: TXD, RXD; Interrupt system: INT0, INT1.

Basic Functions

1. 8-bit data bus, 16-bit address bus CPU;

2. Boolean processing capability and bit processing capability;

3. Harvard structure, programme memory and data memory address space are independent of each other, to facilitate program design;

4. 64KB programme memory and 64KB data memory of the same address;

5.0-8KB on-chip programme memory (8031 has none, 8051 has 4KB, 8052 has 8KB, 89C55 has 20KB);

6.128 bytes on-chip data memory (8051 has 256 bytes);

7.32 bi-directional and can be addressed by bit I/O lines;

8. two 16-bit timer/counter (8052 has three);

9. a full-duplex serial I/O interface;

10. an interrupt structure with multiple interrupt sources and two interrupt priorities;

11. On-chip clock oscillator.

FEATURES

The characteristics of microcontrollers can be summarised as follows: high degree of integration; large storage capacity; strong external expansion capability; and strong control functions.

1, from the internal hardware to the software has a complete set of bit-based operating system, called bit processor, the processing object is not a word or byte but a bit. Not only can it process certain bits of special function registers within the chip, such as transmission, setting, clearing, testing, etc., but also can carry out bit logic operations, which is very complete and easy to use.

2, at the same time in the on-chip RAM area also opened up a special dual-function address area, the use of extremely flexible, this feature undoubtedly provides users with great convenience.

3, multiply and divide instructions, which gives programming also brings convenience. Many eight-bit microcontrollers do not have the multiplication function, multiplication has to be programmed on a subroutine call, very inconvenient.