Difference between revisions of "Minimig Expansion"

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(direct to cpu)
m (Minimig Expansion PCI moved to Minimig Expansion)
(No difference)

Revision as of 19:16, 27 July 2007

http://www.amiga.org/modules/newbb/viewtopic.php?topic_id=39358&forum=8&viewmode=flat&order=ASC&start=140

ATA (IDE), ZorroII, SCSI all wants a large number of I/O pins. There a currently 4 remaining. A few more possible by reusing boot configuration pins. Getting larger fpga means BGA and that is a path you don't want to go.

But fpgas are capable of really fast communications, esp the standard spartan3. So a possibility is to use the leftover I/O to connect another fpga to hookup these things. Essentially a "south bridge" running on a pseudo serial bus.

Not minding the cost of an extra fpga, special copper trace requirements, support circuitry, power, and connectors.

Connect the Zorro bus bridge directly to the CPU bus