How many tiles the NGP can handle at same time ?

[Dr.Wily]

Hello,

I search for an information and I can't find solid answer. Like others tiles engines based consoles I wonder how many tiles the Neogeo Pocket (the B&W and "color" version) can store in his VRAM ?

For example Gameboy can handle 384 unique tiles in his VRAM, Game Gear 448... but I can't find this information for NGP (and Wonderswan).

Is someon has the answer here ?

Thanks

Tiebreaker questions :
- how many sprtie per line NGP can handle ?
- what are the usable sprite sizes ?
- what is the max sprite size (8x8 ?) ?
- how many diferent sprite size can be displayed on screen ?