NES Programming/Memory Map

CPU Memory Map Address Size Description $0000 0x800 2KB of work RAM $0800 0x800 Mirror of $000-$7FF $1000 0x800 Mirror of $000-$7FF $1800 0x800 Mirror of $000-$7FF $2000 0x8 PPU Ctrl Registers $2008 0x1FF8 *Mirror of $2000-$2007 $4000 0x20 Registers (Mostly APU) $4020 0x1FDF Cartridge Expansion ROM $6000 0x2000 SRAM $8000 0x4000 PRG-ROM $C000 0x4000 PRG-ROM * Mirrored 1023 times, not including $2000 - $2007. PPU Memory Map Address Size Description $0000 $1000 Pattern Table 0 $1000 $1000 Pattern Table 1 $2000 $3C0 Name Table 0 $23C0 $40 Attribute Table 0 $2400 $3C0 Name Table 1 $27C0 $40 Attribute Table 1 $2800 $3C0 Name Table 2 $2BC0 $40 Attribute Table 2 $2C00 $3C0 Name Table 3 $2FC0 $40 Attribute Table 3 $3000 $F00 Mirror of 2000h-2EFFh $3F00 $10 BG Palette $3F10 $10 Sprite Palette $3F20 $E0 Mirror of 3F00h-3F1Fh Links Nes specifications - Detailed information on every aspect of the NES Nintendo Entertainment System Documentation - More information on the NES Brad Taylor's NES documentation - NES documentation written by Brad Taylor Visual 2A03 and 2C02 - Simulators of chips at hardware level NES memory map - Additional reference with references