Amiga Processor Peripherals


Lucas

> Company: Anakin Research, Canada
Date: 1988
Amiga: A1000
Interface: 68000 socket
Autoconfig ID: ID2192 / 51

> Little Ugly Cheap Accelerator System
A Public Domain Hardware Hackers Project, Designed By Brad Fowles Of Anakin Research
Sold As A Kit (Only The PCB, Programmed PALs And How To Build Documentation) All Other Parts (CPU, FPU, RAM, Capacitors, Diodes, Sockets, Etc.) Had To Be Purchased Separately
It Did Not Fill The RFC Rules So It Was Not Possible To Sell It All In One

Processor
68020 @ 12 – 20 MHz
68881 Or 68882 @ 12 – 20 MHz
The First Asynchronously Clocked 68020 Board
Originally Designed For 16 MHz
Could Be Upgraded To 68030 Using An Adaptor Board But The Data Caches Are Not Supported (So No Significant Speed Increase Is Possible)

Optional Memory Board – Frances
Fast Ram At Nominal Cost For Expanded Storage
32 DIP Sockets Accept Up To 4 MB RAM
Possible Configurations Are 1, 2, 3 Or 4 MB With 256k&Times;4, 80 – 100 Ns DIPs
8421 DMA RAM Controller Chip
Interleave Access

Notes
Connects Into The 68000 Socket
No 68000 Fallback Mode
Selectable Wait States
Has To Be Fine Tuned For Specific A1000s (Differnet Timings) – This Process Is Well Documented
Very Noisy Design, Does Not Like 3rd Party Hardware Connected To The Side Expansion Port

Images

Amiga Lucas

Front: Lucas front view