Design On Hardware System Of The Network Display Based On ARM

Embedded system means regarding using as the core , based on technology of the computer, the software and hardware can be cut down, and meet the special-purpose computer system that the application system required to the function , dependability , cost, volume and consumption strictly. As the core of the embedded system, the embedded processor often adopts 8 or 16 microprocessors at present. But because these microprocessor operation speed , seek location ability and consumption ,etc. it has been more difficult to be satisfied and relatively complicated to use the occasion embeddedly. Since establishing formally 1990, ARM Company develops the field and make the break-through constantly in 32 RISC (Reduced Instruction Set Computer) CPU, sells the intellectual property right to every large semiconductor manufacturer in the capacity of IP provider all the time, never gets involved in the production and sales of the chip. It has established the market leading position on the embedded application of low consumption , low cost.In all ARM processor series , ARM7TDMI is the widest that it uses, the performance-cost ratio is the highest too. S3C44B0X in this system is a ARM microprocessor using ARM7TDMI kernel to be designed. This text has introduced basic structure and operation principle of S3C44B0X, the whole course of system design based on S3C44B0X especially. Including design and debug the memory system, Power , Crystal oscillator and Reset circuits, Serial interface circuit, JTAG debug interface circuit, LCD and touch screen interface circuit, Ethernet interface circuit. Finally , introduced the question to should be paid attention to at the time of the board design of the circuiting.