People are using the archive and discovering my earlier question about
getting my ATA-100 drive to work on the Asus A7A266, and are now
writing to see whether I ever got a solution.
I did, and since I have had a number of enquiries I decided to excerpt
the correspondence as a pseudo-howto. I am posting this message in
hopes that others may find the information useful.
The information is at
http://www.cs.utexas.edu/users/bdbryant/howtos/hardware/asus-a7a266/DMA_for_ATA-100/
Good luck with it, and holler if you have better suggestions.
Bobby Bryant
Austin, Texas
"Bobby D. Bryant" wrote:
>
> People are using the archive and discovering my earlier question about
> getting my ATA-100 drive to work on the Asus A7A266, and are now
FYI, you may want to add this table to your summary.
The IDE modes are
PIO 0-4
Single word DMA 0-2
Multi word DMA 0-2
Ultra DMA 0-7
This configures the disk - not the chipset.
-X00 restore default PIO
-X01 diasble IORDY
PIO=mode + 8 Programmed IO
-X08 PIO 0
-X09 PIO 1
-X10 PIO 2
-X11 PIO 3
-X12 PIO 4
SDMA=mode + 16 Single-word DMA
-X16 SDMA 0
-X17 SDMA 1
-X18 SDMA 2
MDMA=mode + 32 Muti-word DMA
-X32 MDMA 0
-X33 MDMA 1
-X34 MDMA 2
UDMA=mode + 64 Ultra DMA
-X64 UDMA 0 (ATA 16)
-X65 UDMA 1 (ATA 25)
-X66 UDMA 2 (ATA 33)
-X67 UDMA 3 (ATA 44)
-X68 UDMA 4 (ATA 66)
-X69 UDMA 5 (ATA 100)
--
Eyal Lebedinsky ([email protected]) <http://samba.anu.edu.au/eyal/>