Tham khảo tài liệu 'handbook phần cứng pu part 113', công nghệ thông tin, phần cứng phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | edit Media The interface from the Game Boy Advance unit to the ROM cartridge includes only a 24-bit address bus multiplexed with a 16-bit data bus. Mattel s Intellivision console had previously used a multiplexed bus. This setup limits the directly addressable memory to 16 binary megawords that is 256 binary mebibits or 32 binary mebibytes but bankswitching hardware on the cartridge can extend this by controlling the ROM s upper address lines from software effectively switching other parts of the ROM into the Game Boy Advance s address space. Using this and the cartridge maximum capacity of 32 MB which represents half of the N64 cartridge maximum capacity it allows the developers to add specials contents like FMVs in games such as Kingdom Hearts Chain of Memories. By early 2002 hardware became readily available for moving user code onto the Game Boy Advance. For example in December 2001 a flash memory cartridge and its writing hardware was selling for less than 200 . along with a 50 device to emulate the netbooting master. By April 2003 the prices had come down to under 100 for the flash cartridge and writer and 30 for the boot cable. Because of the drop in prices for programming equipment a homebrew software development community has sprung up. Nintendo however has a history of viewing such devices as nothing more than piracy tools since they can be used to copy cartridges containing copyrighted software. In February 2002 Nintendo began sending threatening letters to some United States resellers of such devices. Previous lawsuits had banned the importation of similar devices for the 8-bit Game Boy. edit Connectivity 3 4-Player connection with 2 GBAs 1 GBA SP and 1 GameCube with a Game Boy Player attached The Game Boy Advance also has a serial port for connecting to other Game Boy Advance units in a setup similar to a token ring network over a bus physical topology. A Game Boy Advance can also receive up to 256 KiB of bootstrap code through the port even when .
