d "tile" may refer to the
two-byte entry in the tile map, or else data for an 8x8 graphic character.</LI>

<LI>
Character: the graphic data (pixels) for a tile.</LI>

<LI>
Priority: Attribute that determines, or helps to determine, the order in
which BGs and sprites are drawn on the screen.</LI>
</UL>

<CENTER><A NAME="PPUMemoryTypes"></A><FONT SIZE=+2>Types of PPU Memory</FONT></CENTER>


<P>There are three memory areas where different kinds of graphics data
are stored, as well as the registers (located in