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Address Range Description
----------------------- -------------------------------
$0000 0000 - $001F FFFF Amiga Chip Memory
$0020 0000 - $009F 0000 Zorro II Memory Expansion Space
$00A0 0000 - $00B7 FFFF Zorro II I/O Expansion Space
$00B8 0000 - $00BE FFFF Reserved
$00BF 0000 - $00BF FFFF CIA Ports & Timers
$00C0 0000 - $00C7 FFFF Expansion Memory
$00C8 0000 - $00D7 FFFF Reserved
$00D8 0000 - $00DB FFFF Reserved
$00DC 0000 - $00DD FFFF Memory Mapped Clock
$00DD 0000 - $00DE FFFF SCSI Control
$00DE 0000 - $00DE FFFF Motherboard Resources
$00DF 0000 - $00DF FFFF Amiga Chip Registers
$00E0 0000 - $00E7 FFFF Reserved
$00E8 0000 - $0EFF FFFF Zorro II I/O & Configuration
$00F0 0000 - $00F7 FFFF Diagnostic ROM (Reserved)
$00F8 0000 - $00FF FFFF High ROM (512K)
$0100 0000 - $03FF FFFF Reserved
$0400 0000 - $07FF FFFF Motherboard Fast RAM
$0800 0000 - $0FFF FFFF Coprocessor Slot Expansion
$1000 0000 - $7FFF FFFF Zorro III Expansion
$8000 0000 - $FEFF FFFF Reserved
$FF00 0000 - $FF00 FFFF Zorro III Configuration Unit
$FF01 0000 - $FFFF FFFF Reserved
32-BIT ADDRESS SPACE HIGH MEMORY
(4 GIGABYTES) (16 MBYTES)
$FFFF FFFF ____________ _ _ _
|____________|_ $FFFF FFFF ____________
| | \ | |
| | | |
| | \ / /
| | \ \
| | | \ \
| | \ \
| | | / /
| | | |
| Reserved | | | Reserved |
| | | |
| | | $FF01 0000 |------------|
| | | Zorro III |
| | | |Config. Unit|
| | $FF00 0000 |____________|
| | |_ _ _
| |
| |
| | _ _ _ LOW MEMORY
| | | (256 MBYTES)
$8000 0000 |------------| $0FFF FFFF ____________
| | | | |
| | | |
| | | | Coprocessor|
| | | Slot |
| | | | Expansion |
| Zorro III | | |
| Expansion | | $0800 0000 |------------|
| | | Motherboard|
| | / | Fast RAM |
| | $0700 0000 |------------|
| | / | |
$1000 0000 |------------|- | Reserved |
| | | |
| | $0100 0000 |------------|- - - -
| Low Memory | | 24-bit | \ /
|(256 MBytes)| | Address | \/ (continued
| | | Space | /\ below)
$0000 0000 |____________|_ _ _ $0000 0000 |____________|_ _/ \_
|
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _|
|
|
_ _ _ HIGH I/O REGISTERS
| |
$DF FFFF ____________
\|/ | | |
| Amiga Chips|
(continued from above) | $DF 0000 |------------|
| Motherboard|
24-BIT ADDRESS SPACE | | Resources |
(16 MBYTES) $DE 0000 |------------|
$00FF FFFF ____________ | |SCSI Control|
| | $DD 0000 |------------|
| High ROM | | | Memory- |
$00F8 0000 |------------| | mapped |
| Diagnostic | | | clock |
| ROM | $DC 0000 |------------|
$00F0 0000 |------------| | | Reserved |
|Zorro II I/O| $DD 0000 |------------|
| and config.| / | Reserved |
$00E8 0000 |------------| $DA 0000 |------------|
| Reserved | / | Reserved |
$00E0 0000 |------------|- $D9 0000 |------------|
| High I/O | | Reserved |
| registers | $D8 0000 |____________|
$00D8 0000 |------------|- - - -
| |
| Reserved |
| |
$00C8 0000 |------------|
| Ranger RAM |
$00C0 0000 |------------|- - - -
| Low I/O | $BF FFFF ____________
| registers | | |
$00B8 0000 |------------|- | CIA Ports |
| | \ | and Timers |
|Zorro II I/O| $BF 0000 |------------|
| Expansion | \ | Reserved |
| | $BE 0000 |------------|
$00A0 0000 |------------| | | Reserved |
| | $BD 0000 |------------|
| Zorro II | | | Reserved |
| Memory | $BC 0000 |------------|
| Expansion | | | Reserved |
| | $BB 0000 |------------|
$0020 0000 |------------| | | Reserved |
| Standard | $BA 0000 |------------|
| Chip RAM | | | Reserved |
| (Up to | $B9 0000 |------------|
| 2 MBytes) | | | Reserved |
$0000 0000 |____________| $B8 0000 |____________|
|_ _ _
Figure D-1: Amiga 3000 Memory Map