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5 expansions found
Manufacturer Commodore, USA | Date 1987 | Amiga A2000, A3000, A4000
| Interface Zorro II
| Autoconfig ID 514 / 1 515 / 3
|
SCSI and ST-506 controller
- supports seven SCSI and two ST-506 devices at once
- the SCSI drives are controlled by the WD 33C93 IC
- the ST-506 drives are controlled by the Zilog Z80B CPU
- the 33C93 chip can be controlled by either the 68000 (default) or by the Z80
- DMA transfers are provided by the custom Commodore 8727 IC featuring a 64 byte FIFO buffer
- the Z80 CPU has 2 kB RAM to buffer commands from the Amiga, 8 kB PROM with driver routines and 1 kB RAM for storage of variables
- cannot autoboot
- does not support the SCSI Direct protocol
- does not support partitions and drives larger than 256 MB
- the ST-506 interface does not support 16-head drives
- 50 pin internal SCSI connector
- DB25 external connector
- hard disk activity LED connector
- on Zorro III machines the card only works if the driver and all the buffers are loaded into chip RAM
- A-Max II driver (hddisk.amhd)
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Manufacturer Commodore, USA | Date 1988 | Amiga A2000, A3000, A4000
| Interface Zorro II
| Autoconfig ID 514 / 1 515 / 3
|
SCSI and ST-506 controller
- supports seven SCSI and two ST-506 devices at once
- the SCSI drives are controlled by the WD 33C93 IC
- the ST-506 drives are controlled by the Zilog Z80B CPU
- the 33C93 chip can be controlled by either the 68000 (default) or by the Z80
- DMA transfers are provided by the custom Commodore 8727 IC featuring a 64 byte FIFO buffer
- the Z80 CPU has 2 kB RAM to buffer commands from the Amiga, 8 kB PROM with driver routines and 1 kB RAM for storage of variables
- three autoboot ROMs
- custom bootblock design
- does not support the SCSI Direct protocol
- does not support partitions and drives larger than 256 MB
- the ST-506 interface does not support 16-head drives
- 50 pin internal SCSI connector
- DB25 external connector
- hard disk activity LED connector
- on Zorro III machines the card only works if the driver and all the buffers are loaded into chip RAM
- A-Max II driver (hddisk.amhd)
hard disk kits
- the A2090A was sold in kit form which included the controller itself, a hard disk, cables, installation disk and manual
- A2092: A2090A bundled with a 20 MB Miniscribe 8425 hard disk
- A2094: A2090A bundled with a 45 MB Toshiba MK-134FA or a 46 MB Rodime RO-3055 hard disk
- all of these hard disks are ST-506 drives
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Manufacturer Commodore, USA | Amiga A2000
| Interface Zorro II
| Autoconfig ID 514 / 4
|
autobooter
- provides autoboot functionality for the Commodore A2090 SCSI controller
- two autoboot ROMs
Manufacturer Combitec, Germany | Date 1989 | Amiga A2000, A3000, A4000
| Interface Zorro II
|
autobooter
- provides autoboot functionality for the Commodore A2090 SCSI controller
- two autoboot ROMs
- autoboots with Kickstart 1.2 and 1.3
- supports FastFileSystem
- replaces the drive request procedure of the A2090 - no 8 seconds wait for drives to show up
- checks for bootable drives in the following order:
- 1st ST506 drive
- 2nd ST506 drive
- 1st SCSI drive
- 2nd to 7th SCSI drive
- can be disabled with jumper or by holding the right mouse button during startup
- works with the A2090A (if A2090A autoboot ROMs are removed)
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Advert (DE)
1989-08
Advert (DE)
1989-10
Manufacturer Pro-Computer, Germany | Amiga A2000, A3000, A4000
| Interface Zorro II
|
autobooter
- provides autoboot functionality for the Commodore A2090 SCSI controller
- two autoboot ROMs
- autoboots with Kickstart 1.2 and 1.3
front side