Slot-2 GBA cartridge emulation on DS mode?

From Nintendo DS Accessories - Scott The Woz

It can't be done because the ds has only the gba processor or wtf is called so it can only play gba games in slot 2 You can tell that if you

ds lite gba slot Looking for Game Boy Advance DS cartridge slot datasheet Anyone knows where to get info or datasheet of the cartridge slot like this for the

dsi gameboy slot From Nintendo DS Accessories - Scott The Woz