<From: Jack Peacock <peacock_at_simconv.com>
<SDS (S.D. Sales) made an S-100 similar to the Teletek, except it could
<be configured as either a bus master main Z80 CPU card or a slave card.
The SDS was only one board, TelTEK actually had three different ones for
slave or master use. The master board also had an FDC on it.
<In master mode it had a memory manager, I think the full 24 bits. In
<slave mode the on-board 64KB of RAM could be memory mapped on a 64K
Yep. Nice board too! Got to try out the proto and it was fast!
<boundary anywhere in the full 24-bit S-100 address space. It had a
<serial port (maybe 2, SIO or DART?) and a SASI port, the early
<predecessor of SCSI.
I had SIO (two serial ports) and a parallel printer port.
Don't remember SASI on that but it did have 765 FDC that could be used
for 8/5.25/3.5" floppies.
<It didn't have much in the way of software support for the slave mode,
<so I haven't done anything with it. My ambition is to make it a Z80
<co-processor card in a Concurrent DOS system 80286 system.
There wasn't much other that configuring it with MP/M as a slave.
Allison
Received on Mon Apr 27 1998 - 20:47:02 BST