Hi Jerry,

On Feb 25, 7:28=A0am, Jerry  wrote:
> IIgs Tech Notes #21 and #68 talk about DMA. =A0#21 just talks about
> expansion memory and #68 has discussion about timing including some
> timing diagrams.

Thanks a lot for this pointer. Being newcomer to the IIgs I didn't
even supposed that Tech Notes exist for it.
Quite many intricate details found just by skimming over it. I am
still travelling, but upon return it will make good read.
--- SBBSecho 2.12-Win32