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== Memory Map == {|class="wikitable" style="text-align:center;" |+ !MMU Block !MMU Page + Sector !CPU Space !Absolute [A20:A0] !WHAT !MMU Page |- |2'b00 |6'b000_000-6'b000_111 |$0000-$1CFF |$00_0000-$00_FCFF |RAM |MMU Page $00 to $07 |- |2'b00 |6'b000_111 |$1D00-$1DFF |$00_FD00-$00_FDFF |256Byte Internal RAM (For OS9 Lvl 2) |Permanent MMU Page $07 |- |2'b00 |6'b000_111 |$1E00-$1E1F |$00_FE00-$00_FE1F |I/O - System Control [16 Bytes] |Permanent MMU Page $07 |- |2'b00 |6'b000_111 |$1E20-$1E2F |$00_FE20-$00_FE2F |I/O - IRQ Controller [16 Bytes] |Permanent MMU Page $07 |- |2'b00 |6'b000_111 |$1E30-$1E3F |$00_FE30-$00_FE3F |I/O - TIMER [16 Bytes] |Permanent MMU Page $07 |- |2'b00 |6'b000_111 |$1E40-$1E4F |$00_FE40-$00_FE4F |I/O - RTC [16 Bytes] |Permanent MMU Page $07 |- |2'b00 |6'b000_111 |$1E50-$1E5F |$00_FE50-$00_FE5F |I/O - PS2 [16 Bytes] |Permanent MMU Page $07 |- |2'b00 |6'b000_111 |$1E60-$1E6F |$00_FE60-$00_FE6F |I/O - UART [16 Bytes] |Permanent MMU Page $07 |- |2'b00 |6'b000_111 |$1E70-$1E7F |$00_FE70-$00_FE7F |I/O - CODEC [16 Bytes] |Permanent MMU Page $07 |- |2'b00 |6'b000_111 |$1E80-$1E8F |$00_FE80-$00_FE8F |I/O - IEC [16 Bytes] |Permanent MMU Page $07 |- |2'b00 |6'b000_111 |$1E90-$1E9F |$00_FE90-$00_FE9F |I/O - SDCARD [16 Bytes] |Permanent MMU Page $07 |- |2'b00 |6'b000_111 |$1EA0-$1EAF |$00_FEA0-$00_FEAF |I/O - MOUSE Ctrl [16 Bytes] |Permanent MMU Page $07 |- |2'b00 |6'b000_111 |$1EB0-$1EBF |$00_FEB0-$00_FEBF |I/O - VIA0 [16 Bytes] |Permanent MMU Page $07 |- |2'b00 |6'b000_111 |$1EC0-$1EDF |$00_FEC0-$00_FEDF |I/O - DMA [32 Bytes] |Permanent MMU Page $07 |- |2'b00 |6'b000_111 |$1EE0-$1EFF |$00_FEE0-$00_FEFF |I/O - MATH [32 Bytes] |Permanent MMU Page $07 |- |2'b00 |6'b000_111 |$1F00-$1F3F |$00_FF00-$00_FF3F |TEXT LUT Foreground [64 Bytes] |Permanent MMU Page $07 |- |2'b00 |6'b000_111 |$1F40-$1F7F |$00_FF40-$00_FF7F |TEXT LUT Background [64 Bytes] |Permanent MMU Page $07 |- |2'b00 |6'b000_111 |$1F80-$1F8F |$00_FF80-$00_FF8F |I/O - SNES/NES Control [16 Bytes] |Permanent MMU Page $07 |- |2'b00 |6'b000_111 |$1F90-$1F9F |$00_FF90-$00_FF9F |I/O - DIP SW [16 Bytes] |Permanent MMU Page $07 |- |2'b00 |6'b000_111 |$1FA0-$1FAF |$00_FFA0-$00_FFAF |MMU Control Registers [16 Bytes] |Permanent MMU Page $07 |- |2'b00 |6'b000_111 |$1FB0-$1FBF |$00_FFB0-$00_FFBF |I/O - VIA1 [16 Bytes] (F256K) |Permanent MMU Page $07 |- |2'b00 |6'b000_111 |$1FC0-$1FDF |$00_FFC0-$00_FFDF |GRAPH - TinyVICKY Ctrl Reg [16 Bytes] |Permanent MMU Page $07 |- |2'b00 |6'b000_111 |$1FE0-$1FEF |$00_FFE0-$00_FFEF |RESERVED |Permanent MMU Page $07 |- |2'b00 |6'b000_111 |$1FF0-$1FF1 |$00_FFF0-$00_FFF1 |Reserved |Permanent MMU Page $07 |- |2'b00 |6'b000_111 |$1FF2-$1FF3 |$00_FFF2-$00_FFF3 |Vector - Software Interrupt 3 (SWI3) |Permanent MMU Page $07 |- |2'b00 |6'b000_111 |$1FF4-$1FF5 |$00_FFF4-$00_FFF5 |Vector - Software Interrupt 2 (SWI2) |Permanent MMU Page $07 |- |2'b00 |6'b000_111 |$1FF6-$1FF7 |$00_FFF6-$00_FFF7 |Vector - Fast Interrupt Request (FIRQ) |Permanent MMU Page $07 |- |2'b00 |6'b000_111 |$1FF8-$1FF9 |$00_FFF8-$00_FFF9 |Vector - Interrupt Request (IRQ) |Permanent MMU Page $07 |- |2'b00 |6'b000_111 |$1FFA-$1FFB |$00_FFFA-$00_FFFB |Vector - Software Interrupt 1 (SWI1) |Permanent MMU Page $07 |- |2'b00 |6'b000_111 |$1FFC-$1FFD |$00_FFFC-$00_FFFD |Vector - Non-Maskable Interrupt (NMI) |Permanent MMU Page $07 |- |2'b00 |6'b000_111 |$1FFE-$1FFF |$00_FFFE-$00_FFFF |Vector - Reset (RESET) |Permanent MMU Page $07 |- |2'b00 |6'b001_000-6'b111_111 |$0000-$1FFF |$01_0000-$07_FFFF |RAM (448K) (Shared With Vicky) |MMU Page $08 to $3F |- |2'b01 |6'b000_000-6'b111_111 |$0000-$1FFF |$08_0000-$0F_FFFF |FLASH (512K) |MMU Page $40 to $7F |- |2'b10 |6'b000_000-6'b011_111 |$0000-$1FFF |$10_0000-$13_FFFF |CARTRIDGE(256K) RAM/FLASH |MMU Page $80 to $9F |- |2'b10 |6'b100_000-6'b111_111 |$0000-$1FFF |$14_0000-$17_FFFF |RESERVED |MMU Page $A0 to $BF |- |2'b11 |6'b000_000 |$0000-$03FF |$18_0000-$18_03FF |GRAPH - GAMMA B |MMU Page $C0 |- |2'b11 |6'b000_000 |$0400-$07FF |$18_0400-$18_07FF |GRAPH - GAMMA G |MMU Page $C0 |- |2'b11 |6'b000_000 |$0800-$0BFF |$18_0800-$18_0BFF |GRAPH - GAMMA R |MMU Page $C0 |- |2'b11 |6'b000_000 |$0C00-$0FFF |$18_0C00-$18_0FFF |GRAPH - MOUSE Graphics |MMU Page $C0 |- |2'b11 |6'b000_000 |$1000-$10FF |$18_1000-$18_10FF |GRAPH - BITMAP Registers |MMU Page $C0 |- |2'b11 |6'b000_000 |$1100-$11FF |$18_1100-$18_11FF |GRAPH - TILE Registers |MMU Page $C0 |- |2'b11 |6'b000_000 |$1200-$12FF |$18_1200-$18_12FF |GRAPH - MISC Registers |MMU Page $C0 |- |2'b11 |6'b000_000 |$1300-$13FF |$18_1300-$18_13FF |GRAPH - SPRITE BANK 0 |MMU Page $C0 |- |2'b11 |6'b000_000 |$1400-$14FF |$18_1400-$18_14FF |GRAPH - SPRITE BANK 1 |MMU Page $C0 |- |2'b11 |6'b000_000 |$1500-$1FFF |$18_1500-$18_1FFF |RESERVED |MMU Page $C0 |- |2'b11 |6'b000_001 |$0000-$07FF |$18_2000-$18_27FF |GRAPH - FONT MEMORY |MMU Page $C1 |- |2'b11 |6'b000_001 |$0800-$0BFF |$18_2800-$18_2BFF |GRAPH - LUT2 |MMU Page $C1 |- |2'b11 |6'b000_001 |$0C00-$0FFF |$18_2C00-$18_2FFF |GRAPH - LUT3 |MMU Page $C1 |- |2'b11 |6'b000_001 |$1000-$13FF |$18_3000-$18_33FF |GRAPH - LUT0 |MMU Page $C1 |- |2'b11 |6'b000_001 |$1400-$17FF |$18_3400-$18_37FF |GRAPH - LUT1 |MMU Page $C1 |- |2'b11 |6'b000_001 |$1800-$1FFF |$18_3800-$18_3FFF |RESERVED |MMU Page $C1 |- |2'b11 |6'b000_010 |$0000-$12BF |$18_4000-$18_52BF |GRAPH - TEXT MEMORY (80x60 Max) |MMU Page $C2 |- |2'b11 |6'b000_010 |$12C0-$1FFF |$18_52C0-$18_5FFF |RESERVED |MMU Page $C2 |- |2'b11 |6'b000_011 |$0000-$12BF |$18_6000-$18_72BF |GRAPH - COLOR MEMORY (80x60 Max) |MMU Page $C3 |- |2'b11 |6'b000_011 |$12C0-$1FFF |$18_72C0-$18_7FFF |RESERVED |MMU Page $C3 |- |2'b11 |6'b000_100 |$0000-$001F |$18_8000-$18_801F |SOUND - SID LEFT |MMU Page $C4 |- |2'b11 |6'b000_100 |$0080-$009F |$18_8080-$18_809F |SOUND - SID MONO |MMU Page $C4 |- |2'b11 |6'b000_100 |$0100-$011F |$18_8100-$18_811F |SOUND - SID RIGHT |MMU Page $C4 |- |2'b11 |6'b000_100 |$0180 |$18_8180 |SOUND - OPL3 ADDY REG Low (F256K) |MMU Page $C4 |- |2'b11 |6'b000_100 |$0181 |$18_8181 |SOUND - OPL3 DATA REG (F256K) |MMU Page $C4 |- |2'b11 |6'b000_100 |$0182 |$18_8182 |SOUND - OPL3 ADDY REG Hi (F256K) |MMU Page $C4 |- |2'b11 |6'b000_100 |$0200-$0207 |$18_8200-$18_8207 |SOUND - PSG LEFT |MMU Page $C4 |- |2'b11 |6'b000_100 |$0208-$020F |$18_8208-$18_820F |SOUND - PSG MONO |MMU Page $C4 |- |2'b11 |6'b000_100 |$0210-$0217 |$18_8210-$18_8217 |SOUND - PSG RIGHT |MMU Page $C4 |- |2'b11 |6'b000_100 |$0218-$1FFF |$18_8218-$18_9FFF |RESERVED |MMU Page $C4 |- |2'b11 |6'b000_101-6'b111_111 |$0000-$1FFF |$18_A000-$1F_FFFF |NOTHINGNESS - RESERVED |MMU Page $C5-$FF |}
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