optional 68882 @ 16 - 50 MHz, PGA - can be clocked at different speed than the CPU
optional memory daughterboards
68030-RAM8:
eight 30 pin SIMM sockets accept 4 or 8 MB RAM
supports only special 1 MB Nibble Mode SIMMs, they are more expensive than GVP SIMMs
accepts SIMMs in groups of four
68030-RAM32: (from 1991)
eight 64 pin SIMM sockets accept up to 8 or 20 MB RAM
supports only special 1 or 4 MB, 60 ns GVP SIMMs
60 ns SIMMs are required for 50 MHz, 70 ns for 33 MHz, 80 ns for 25 MHz
16 - 33 MHz boards support 1 MB SIMMs only, possible configurations are 2, 4 and 8 MB
50 MHz boards support 4 MB SIMMs, possible configurations are 4, 8, 12, 16 and 20 MB
using a 4 MB SIMM requires four 1 MB SIMMs to be installed in sockets 3 to 6, so the 4 MB SIMMs can only be installed into sockets 7 to 10
optional IDE controller
two autoboot ROM sockets
to activate the IDE controller only the boot EPROM(s) (gvpat.device) has to be installed on the main board - the first version of the driver software required two EPROMs, later ones required only one
does not support drives that has more than 1024 cylinders
controller uses byte-swapped storaging, so the HDD will be unreadable on other controllers without that feature
40 pin internal IDE header
A-Max II driver (gvpat.amhd) - requires gvpat.device v2.4 and A-Max v2.06
notes
autobooting requires at least Kickstart 1.3 - the autoboot ROM should not be installed with Kickstart 1.2
two ROM sockets for UNIX boot ROMs that require an A2090A SCSI controller - these ROMs are compatible with those on the A2630
68000 fallback mode selectable by jumper
the memory and IDE controller is also deactivated in fallback mode
drives can be fitted into an A500 in place of the built-in floppy drive using the Shuffle Board
autobooting (adide.device or icdide.device) - requires at least Kickstart 1.3
autobooting is problematic with the CDTV - either a boot floppy has to be used (which a bare CDTV lacks), or after a reset by selecting the hard disk in the Early Startup Menu (which require at least Kickstart 2.0)
incompatible with Western Digital and IBM hard disks
AdIDE 44 rules out accelerators that connect to the 68000's socket due to mechanical constraints
AdIDE 40 is compatible with processor expansions if the AdIDE is fitted below the accelerator - reported to be functional in A500 are CSA Derringer and Mega-Midget Racer, as well as Microbotics VXL*30
older software revisions work only with 68000 processor cards
the board is basically the combination of the A.L.F. IDE controller and the MemoryMaster memory expansion cards
uses polled I/O, not DMA transfer
RDB compatible
40 pin internal IDE header
place for a 3.5" hard disk on the card
delivered with A.L.F. 2 driver software
during transfers the high and low bytes are swapped as the A600/A1200/A4000 and PCs do so the drives formatted with them can be handled by the AT-Bus 2008
hard disk activity LED connector
memory
sixteen ZIP sockets accept 8 MB RAM
supports either static column or page mode ZIPs
accepts ZIPs in groups of four giving 2, 4, 6 or 8 MB configurations
two buffered IDE ports support up to four IDE devices
each port is compatible with IDE splitters allowing up to a maximum of eight drives
autoboot ROM
two LED port activity connectors - one for drives 0 to 3, the other for drives 4 to 7
software configurable IDE timing - even PIO mode 0 devices are compatible
raw transfer speed is limited by the Zorro II bus to 3.58 MB/s
supports hard disks larger than 4 GB
can mount GVP or AT-Apollo formatted hard disks
supported by Linux
26 pin local expansion slot for the optional HyperCom 3 Plus I/O module with two serial and one parallel ports
Buddha Flash:
64 kB FlashROM
clock port
allows using expansions initially designed for the A1200 clock port (the Buddha Flash gold edition has golden clock port pins)
when installed in Zorro slot, pin 40 of the card's clock port is towards the front side of the computer, pin 19 resp. pin 1 towards the rear side
marked wire of clock port expansions go to pin 19 or pin 40, depending on the manufacturer's definition - e.g. expansions made by Individual Computers are installed with the red stripe on pin 40 (to the left), expansions of E3B mark pin 19 / pin 1 (to the right)
special edition of the Buddha Flash IDE controller that is intended to be used with the Phoenix A1000 motherboard, but can also be used with original A1000 as well as A500 and Zorro Amigas
differences to Buddha Flash:
smaller PCB
hardware redesign, 5 chips instead of 8
no 26 pin expansion slot
floppy power connector
the board can be installed in the following places:
Front Slot Phoenix Board
Side Expansion Port (Phoenix board, A1000 board, A500)
Zorro Slot
if the board shall be used at the A500, a special edition with a different mounted 86 pin connector is needed
the board must not be installed in the front slot of the A1000 board
when used at the Phoenix front slot, the INT6 signal has to be provided to the board as this signal is missing - the side expansion ports provide that signal, so the wire is not necessary when installed there
height of the board was chosen so that a laptop CD drive (14mm) can be fitted above the card in the A1000
when installed on the Phoenix board front slot, the L64 jumper has to be removed
2.5" hard disks can not be powered by the board due to thin PCB tracks - making them thick enough for that purpose would have been resulted in a more expensive multilayer board
it is necessary to provide power to the board via floppy power connector
in conjunction with a Phoenix X-Surf a new Mach chip is needed (includes also a fix which prevented the Amiga from booting with Kickstart v1.3)
only one jumper on the board, next to the flash chip: open = flash write protected, closed = flashing possible
small header in the middle of the board with two LED connectors
clock port
allows using expansions initially designed for the A1200 clock port
when installed in Zorro slot, pin 40 of the card's clock port is towards the front side of the computer, pin 19 resp. pin 1 towards the rear side
marked wire of clock port expansions go to pin 19 or pin 40, depending on the manufacturer's definition - e.g. expansions made by Individual Computers are installed with the red stripe on pin 40 (to the left), expansions of E3B mark pin 19 / pin 1 (to the right)