On Sat, 22 Sep 2001, Fred Cisin (XenoSoft) wrote:
On Sat, 22 Sep 2001, Mark wrote:
- What differences are there between the Option
Board and Deluxe Option
Board? Looking at a picture in an eBay auction listing, the Option Board
card appears to use quite a few discrete (TTL?) ICs, whereas the Deluxe
card (or at least, the cards I have), uses an ASIC made by Toshiba. Does
the ASIC simply replicate the discrete ICs, or contain extra functionality?
The deluxe can handle a wider range of data transfer rates. That is
needed for the Mac formats.
IIRC, later models of the "regular" were also ASIC.
True, I have several of the Option Boards kicking around here with
different Copyright dates silk screened on them. The 1986 ones come in
both discrete and ASIC versions, while the 1987 ones are all ASIC.
- don
--
Grumpy Ol' Fred cisin(a)xenosoft.com