Z80 Area
| Start | End | Size | Description |
| $A00000 | $A01FFF | 4KiB | Sound RAM |
| $A02000 | $A03FFF | 4KiB | Sound RAM (mirror) |
| $A04000 | $A04003 | Sound Chip | |
| $A04004 | $A05FFF | Prohibited | |
| $A06000 | $A06001 | Bank Register |
| Start | End | Size | Description |
| $A00000 | $A01FFF | 4KiB | Sound RAM |
| $A02000 | $A03FFF | 4KiB | Sound RAM (mirror) |
| $A04000 | $A04003 | Sound Chip | |
| $A04004 | $A05FFF | Prohibited | |
| $A06000 | $A06001 | Bank Register |