amiga history guide Supporting Amiga and compatibles since 1997
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© 1997-2006
Gareth Knight
All Rights reserved

 

Hardware

The hardware schematics and feature list were in a constant state of flux. The final feature list, dated February 1998, provides a detailed diagram and additional information on the board:

PIOS One System
Source: The PIOS One System Specification v1.97

Hardware Hardware Notes
CPU PowerPC 603 & 604

G3 & G4 expected to be used at a later date

Support for mult-processing using compatible operating systems.
This would allow the use of two older processors for maximum efficiency.
Flash ROM Up to 1MB of flash ROM  
RAM 168-pin unbuffered 64-bit DIMM modules  
Sound Aureal AU8820 on the PCI Bus The AU8820 offers multichannel music synthesis based on samples stored in main memory, MIDI, game port, and
digital I/O expansion.

The Aureal chip is an audio processor, which generates sounds using an industry-standard AC97 CODEC.

Interfaces 5 PCI (two 64-bit slots, three 32-bit)
Two ISA slots (absent in Maxxtrem system)
Two port USB
EIDE/ATA-2 controller
SCSI-2
SCC Interface (two ports)
ADB Interface
Digital Audio I/O port (DAI/O)
'Macintosh-compatible' RS-422 Serial
Standard RS-422
The Hydra chip, designed by Apple for the PowerPC Platform, adds support for SCSI-2 host adaptor integration, as well as CHRP compatibility and additional serial interfaces.

The Macintosh-compatible serial connector, based on the RS-422 standard, is a 9-pin mini-DIN socket.

The faster RS-422 ports can be used for some kinds of printers, multichannel MIDI devices, modems, and
cheap networking.

Each of the serial ports has individual read and write DMA channels, to offload the CPU and avoid any latency problems.

Keyboard interface PS/2, USB, or ADB keyboards  

Last Update: 19/07/2001


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