This message is from the T13 list server.
On 08 Mar 2004 21:06:49 -0700, Pat LaVarre wrote: >This message is from the T13 list server. >How commonly do boot BIOS actually leave BSY and/or DRQ set? I should have added this to my previous message... Since SATA basically ignores all the Command Block access rules, it would be interesting to know what strange things happen if this same host was dealing with a SATA host controller and SATA device. Ignoring the these rules is the main reason SATA should have never been merged with PATA (in ATA/ATAPI-7). SATA should have remained the publication of a "secret society" or should have been a completely different ANSI standard. Just like the old problem with the ATAPI DEVICE RESET that requires the phase "except for DEVICE RESET" on every 5th page of ATA/ATAPI-x, SATA probably requires the phase "except Serial ATA" on every page of ATA/ATAPI-7. ATA/ATAPI-7 should not be accepted as an ANSI standard (but it will). And this mistake should not be repeated in ATA/ATAPI-8 - ATA/ATAPI-8 should go back to just being PATA and SATA should get its own documents completely separate from PATA. Of course there may be no reason for any new/additional PATA documents. ATA/ATAPI-7 will always be viewed as some strange aberration that doesn't nothing but confuse everyone. Hale *** Hale Landis *** www.ata-atapi.com ***
