The Mediator is a PCI implementation for
connecting PCI devices in Amiga computers, allowing expansion
of Amiga with all kinds of industry standard hardware products
like graphic, sound, network, USB, TV tuner, ISDN and MPEG-2
hardware decoder PCI cards.
Moreover, the Mediator PCI busboard is ready for SharkPPC
PCI cards based on the latest PowerPC G3 and G4 processors.
The minimum hardware configuration is: any
Amiga with Zorro III slots and 68030 processor card.
The recommended configuration is: Amiga 3/4000T with any 68060
(or PPC with 68060) turbo card with 64MB RAM, a SharkPPC G3/G4
card with 128MB SDRAM, a Voodoo3 graphic card.
The Mediator PCI ZIII features:
4 PCI slots (PCI 2.1 compatible)
simultaneous use of up to four PCI cards fully assimilated
in the Amiga environment.
33MHz PCI clock (66MHz with SharkPPC G3/G4)
the PCI clock running at 33MHz, data transfers are executed
with the bandwidth of up to 132MB/s and up to 264MB/s for
32-bit PCI datapatch
transfers are supported in all data transfer types: PCI to
Amiga, Amiga to PCI and PCI to PCI.
4GB PCI memory space
PCI 4000 allows access to the entire 4GB of the PCI memory
Busmastering/DMA in all PCI slots
PCI supports the busmastering mechanism in all its PCI slots.
The PCI cards in the busmaster mode can offer extremely fast
DMA access (up to 132MB/s) without any CPU load. Up to four
PCI busmaster cards may be used simultaneously in Mediator.
• SDRAM/SGRAM of PCI gfx card as system
Mediator PCI ZIII can use part of the graphic card memory
for Amiga system needs. Thus, the entire system gains in effectiveness
as graphic card's SDRAM/SGRAM memory modules are about 10x
faster than FastRAM memory in Amiga turbo cards. With very
short access time in SDRAM/SGRAM, several PCI busmaster cards
may use this memory simultaneously. The PCI cards may then
rush at the data transfer rate of up to 132MB/s without any
CPU load whatsoever.
• DMA to A3/4000 motherboard space
Mediator PCI ZIII includes a busmastering controller supporting
transfers between PCI cards and the A3/4000 motherboard space.
• Address and data parity control support
and data parity are supported in all Mediator slots. Parity
support is necessary for using PCI cards like Sound Blaster
Audigy, Sound Blaster Live! or ForteMedia FM801-based PCI
Interrupt controller (4 lines)
The Mediator Interrupt Controller manages four independent
interlived PCI interrupt lines.
• PCI and Zorro
Mediator PCI ZIII enables
simultaneous operation of PCI cards in its slots and Zorro
III/II cards installed in the Zorro slots.
PCI ZIII is compatible with all A3/4000 processor card models.
The Mediator PCI ZIII card is installed in any Zorro III slot.
The Mediator PCI ZIII card is recommended only for Amiga 3/4000T
computers, which do not have daughterboard, that is with Zorro
III slots installed on the motherboard.
In case of all other A3/4000 computers we strongly advise
the choice of new daughterboard and Mediator PCI 4000, which
enable the seamless installation of PCI and Zorro cards.
The following PCI cards are currently supported
in Mediator PCI ZIII:
• Graphic cards,
• Ethernet 10Mbps cards,
• Fast Ethernet 100Mbps cards,
• TV tuner cards,
• Sound cards.
complete list of the supported PCI card models: see the Mediator
The Mediator PCI ZIII is available with a standard software
pack: 2D and Warp3D Voodoo3 graphic drivers, Voodoo4 and Voodoo5
24-bit 2D graphic drivers, S3 ViRGE and S3 ViRGE DX 2D graphic
drivers and Ethernet 10Mbps network drivers.
Mediator PCI ZIII can also be obtained with an extended software
pack including the Mediator
Mediator PCI ZIII (incl. MM CD) Suggested
Retail Price (VAT and local taxes excluded): see Product