Arne wrote:Last year I talked to Uwe Seimet and he stated that he does not need the INT line on a ST.
Did you already talk to Uwe about this feature?
I know, polling the Alternate Status Register will do the job.
But I was looking for the fastest way to get the status..
Arne wrote:So you can finalise the running bus-cycle and start a new bus-cycle while the latches still hold the data-lines to the IDE port?!?!
Arne wrote:You might want to take a look at the 74HCT646. Its a octal bus driver with latches (for both directions).
A bit more expensive than a combi of '541/'573 but would make layout a bit easier.
I know. But layout was no big issue at all. And the 646 was not saving space, since the DIL version is using a package 15mm wide. And I didn't want to use SMD to keep the assembly easier.
AtariZoll wrote:I was thinking about same years ago. But IDE autoboot in TOS uses mode with IRQ active.
TOS is even using CHS mode. It is time to create a patch..