| Start address | End address | Description |
| 0x000000 | 0xBFFFFE | RAM area |
| 0xC00000 | 0xDFFFFF | Graphic VRAM |
| 0xE00000 | 0xE7FFFF | Text VRAM Planes |
| 0xE80000 | CRTC (VICON) |
| 0xE82000 | Video Controller (CATHY / VIPS) |
| 0xE84000 | DMAC (HD63450) |
| 0xE86000 | Memory controller privileged access settings (OHM/ASA) |
| 0xE88000 | MFP (MC68901) |
| 0xE8A000 | RTC (RP5C15) |
| 0xE8C000 | Printer port |
| 0xE8E000 | System controller (MESSIAH/DOSA) |
| 0xE90000 | FM Synthesizer (YM2151) |
| 0xE92000 | ADPCM (MSM6258V) |
| 0xE94000 | Floppy disk controller (FDC) (uPD72065) |
| 0xE94005 | Floppy drive monitor (IOSC) |
| 0xE96000 | SASI |
| 0xE98000 | ESCC (Z8530) |
| 0xE9A000 | PPI (82C55) |
| 0xE9C000 | I/O selector (IOSC) |
| 0xE9E000 | 0xEAFFFF | I/O expansion area (Sharp reserved) |
| 0xEB0000 | Sprite register (CYNTHIA) |
| 0xEB8000 | 0xEBFFFF | Sprite VRAM |
| 0xEC0000 | 0xECFFFF | I/O expansion area (User) |
| 0xED0000 | 0xED3FFF | Battery backed-up SRAM |
| 0xED4000 | 0xEFFFFF |
| 0xF00000 | 0xFBFFFF | CGROM |
| 0xFC0000 | 0xFDFFFF | Internal SCSI Rom |
| 0xFE0000 | 0xFFFFFF | IPL |
| 0x1000000 | 0xFFFFFFFF | High Memory, only available for 68030+ |