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Joseph and Mark If you are unable to transfer more than 1
sector in PIO (I thought this type of host was obsolete) then you would need to
issue to separate SMART READ/WRITE LOG E1 to accomplish the task. I
believe that the new READ/WRITE LOG DMA EXT will solve most of these problems… ------------------------------------------------- Curtis E. Stevens Phone: 949-672-7933 Cell: 949-307-5050 E-Mail:
[EMAIL PROTECTED] Ambition is a poor excuse for not having enough sense to be
lazy. From: Mark Overby
[mailto:[EMAIL PROTECTED] Ahh. DRQ, not IRQ. Now I understand what you are after. And yes, many AHCI hosts do not support
multiple DRQ block for PIO. I agree with Joseph on this. From: Joseph
Chen - SISA [mailto:[EMAIL PROTECTED] Mark, This should be single DRQ option described
in the AHCI 1.0 specification. When bit 15 of the CAP register equal to 0, the
host transfer one DRQ block. Please refer to the AHCI spec for details. Regards, Joseph From: Mark Overby
[mailto:[EMAIL PROTECTED] I'm probably missing something subtle
Joseph - hosts don't transfer IRQ at all. What do you mean by that statement? Thanks! From:
[EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Joseph Chen - SISA In the SCT Data Transfer Section, it indicates the transfer
can be concatenated with multiple E1h Read/Write Log commands. In the case of
Long Sector Access command, can the host request with two E1h command, with one
sector for each command. (The Long Sector Access command should return/receive
2 sectors of data.) Note: Some host can only transfer single IRQ for Read Log PIO data
transfer. Regards, Joseph |
- [t13] SCT Tansport Question Joseph Chen - SISA
- RE: [t13] SCT Tansport Question Mark Overby
- RE: [t13] SCT Tansport Question Joseph Chen - SISA
- RE: [t13] SCT Tansport Question Mark Overby
- RE: [t13] SCT Tansport Question Curtis Stevens
