Where can I find information on the graphics or sound chips?
There basically are no separate chips for graphics or sound processing. The gp32 CPU handles most of these operations. There is an external Samsung LPC3600 LCD timing controller but this is only used for generating correct signal timing for the LCD. There is also an external Phillips UDA1330A stereo filter IIS-bus DAC but this is only used to convert the final composite sound signal from digital to analog. The gp32 graphics hardware has no layers, tile modes, sprites, or other fancy hardware. It basically just has double-buffering of a bitmap-style screen mode.
