17 Apr
2000
17 Apr
'00
12:10 p.m.
I didn't follow this too closely but there were a couple of 8-bit IDE
interface boards in terms of "ISA 8 bit" vs "ISA 16 bit". JDR used to
sell
one as an "upgrade" option for the XT and its ilk. However, it was only IDE
(no EIDE) and generally some BIOSes couldn't boot from it (it had BIOS boot
roms but not all systems (I think Leading Edge were a big problem here)
actually used them.)
Now as far as talking to a drive across the 40 pin cable in "8 bit mode",
that I've no clue on.
--Chuck
At 12:33 PM 4/17/00 -0400, you wrote:
an answer to
the question I've put forth. The 8-bit interface feature is
written in the purported ANSI standard for ATA interfacing, yet nobody seems
to have experience with it. I was hopeful that someone would know about
this.
Very simply. I tried that and it's bogus! It does not work. Therefor
expereince with it is limited to trying to make it work.
It may be proposed and would be nice but it's a no-op as far as I can test
it.
features as shown in table 14.
+=====+=============================================================+
| 01h | Enable 8-bit data transfers (see 6.2.5) |
Allison