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Dm9000 (a) is a fully integrated, powerful, cost-effective, fast Ethernet MAC controller with a universal processor interface, EEPROM interface, 10/100 phy, and 16 kb SRAM (13 KB as receiving FIFO, 3 kb as the sending FIFO ). It uses a single power supply and is compatible with 3.3 V and 5 v io Interface levels. Dm9000 (a) also supports the media independent interface (media-independent) interface to connect to hpna (home phone-line networking Alliance) devices or other devices that support MII.

ARM processor status The ARM microprocessor generally has two working states and can be switched between them: The first type is the arm State. At this time, the processor executes the 32-bit arm command; The second is the thumb State. At this time, the processor executes the 16-bit half-aligned thumb command. During the execution of a program, the microprocessor can switch between the two working states at any time, and the change in the working state of the processor does not affect the workin

This article address: http://www.cnblogs.com/archimedes/p/assembly-register.html, reprint please indicate source address.This article will mainly introduce the registers in the 8086 CPU,A register is a unit that stores information, or a device or a container, such as memory is also a storage medium or a storage unit, in fact, the register from the understanding and memory is similar,Only registers (the regi

X86 register descriptionEBP and ESP are 32-bit sp, BPESP is a stack pointer.EBP is the base address pointer.The relationship between ESP and SP is like the relationship between ax and Al and AH. 32-bit CPUs contain the following registers: Four data registers (eax, EBX, ECx, and EDX)2 address changes and pointer registers (ESI and EDI) 2 pointer registers (ESP and EBP)Six segment registers (ES, Cs, SS, DS, FS, and GS)1 Instruction Pointer

and third block in the diagram, 0X1000~0X3FFF this part of the configuration.2.Distributor ConfiguratorDistributor the address of this register = the address of the GIC controller + 0x1000, do not forget the offset when used. And start from here, like a register. Offset Name can read and write After reset Role 0x000 Gic

Transferred from: http://www.2cto.com/os/201307/227903.html Vim Use series: Register and copy paste bufferIt is now possible to skillfully use most of Vim's basic commands and functions for Project code development, but during the development of the project, there are still some operational inefficiencies, such as the large-scale movement of the cursor through H/J/K/L, and it is clear that VIM provides a more efficient command operation. Recently ofte

Register allocation is a way to increase program execution speed by allocating program variables to registers as much as possible. Register is one of the most important problems in compiler optimization (good register allocation can increase program execution speed by more than 250%), and it is also one of the hottest research fields in compiler theory (the resea

http//bbs.886520.com/forum-28-1.htmlESP is the stack pointer ebp is the base address pointer 4 data registers (EAX, EBX, ECX, and EDX) 2 variable address and pointer register (ESI and EDI) 2 pointer registers (ESP and EBP) 6 segment Registers (ES, CS, SS, DS, FS, and GS) 1 instruction Pointer Register (EIP) 1 flag Register (eflags)1, the data

This paper mainly explains the logical structure of 8086CPU, the method of forming physical address, the related registers and some instructions from the angle of how the CPU executes the instruction.This article address: http://www.cnblogs.com/archimedes/p/assembly-register-memory.html, reprint please indicate source address.Storage of in-memory wordsIn the CPU, 16 bits are used to store a word, high 8 bits hold high byte, low 8 bits hold lower byte.

In the computer, the CPU speed is much faster than the memory speed, the compiler should make the best use of register resources, reduce unnecessary access to memory, thereby increasing the compiler generated by the assembly code run speed. In the intermediate code generation phase, the UCC compiler holds a temporary variable T to hold the shape as "t:a+b;" The value of the common subexpression of the assembly code generation, the UCC compiler will tr

VGA register list VGA Register address table Register name Monochrome Display Mode Color Display Mode Mixed output register