On Wed, 5 Mar 2008 22:47:09 +0000
Ethan Dicks <ethan.dicks at usap.gov> wrote:
I was planning
on using an 8-bitter with a couple-K of RAM built-in
and a built-in IDE interface.
I've built and maintained 68000-based Unibus,
Qbus, and
VAXBIcommunications boards
M68k is still alive: ColdFire!
Looking at the MSCP-SCSI stuff: It seems that the data is pumped between
QBus and SCSI by glue logic hardware. (There is a CPLD etc.) So the MCU
has to do only supervisory tasks. With a faster (16 or 32 bit) MCU this
could be done in software. A software solution would be more flexible
and much easier to build. (debugging, PCB, programming a CPLD, ...)
Also: There are ColdFire MCUs with PCI interface. This would ease
attachment of a SATA controller...
--
tsch??,
Jochen
Homepage:
http://www.unixag-kl.fh-kl.de/~jkunz/