This message is from the T13 list server.
Jim
According to ATA/ATAPI-7 volume 1 clause 5.15, Serial devices that
implement the packet feature set return a signature of 9669h. Devices that
do not implement the packet feature set return C33Ch. Does this solve the
problem?
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20511 Lake Forest Dr. #C 214-D
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From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
[EMAIL PROTECTED]
Sent: Monday, October 04, 2004 2:18 PM
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Subject: RE: [t13] Documents posted
This message is from the T13 list server.
No.
What I said was what I meant.
Refer to these documents:
"Serial ATA II: Port Multiplier, Revision 1.1"
> http://www.sata-io.org/docs/pm_1_1_Gold.pdf
section 7.4.1. "Port Multiplier Discovery (Informative)"
"Serial ATA II: Extensions to Serial ATa 1.0a, Revision 1.2"
> http://www.sata-io.org/docs/S2Ext_1_2_Gold.pdf
Given the <current> (external) SATA specs, a serial ATA and a serial ATAPI
device would have the same poweron signature.
So, we have unique signatures for
parallel: ATA
parallel: ATAPI
serial: ATA <and> ATAPI
serial: port multiplier
Now, it is <another> question to ask if that is proper or not,
which I leave for someone else to answer.
Thank You !!!
-----------------------------------------------------------------
Jim Hatfield
ATA Interface Firmware & T13 (ATA/ATAPI) Standards Representative
Seagate Technology LLC
e-mail: [EMAIL PROTECTED]
s-mail: 389 Disc Drive; Longmont, CO 80503 USA
voice: 720-684-2120
fax....: 720-684-2711
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| | 10/04/2004 02:54 |
| | PM |
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| Subject: RE: [t13] Documents posted
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Regarding e04127r0, there was a thread on the T13 reflector back in May
2003 titled "Serial ATA signature change from 1.0a to ATA/ATAPI-7 v1r2"
that noticed the problem and (I thought) agreed to resolve it.
Unfortunately it was apparently never fixed. I agree with your proposed
fix.
Note there is a typo in e04127r0 section 2.3 (in the background
section):
"There was never any intention that a serial ATA device have a different
signature _than a serial ATAPI device_."
It should say "than a parallel ATA device." ATA and ATAPI need to have
different signatures, as do SATA and SATAPI. SATA=ATA and SATAPI=ATAPI
is fine.
--
Rob Elliott, [EMAIL PROTECTED]
Hewlett-Packard Industry Standard Server Storage Advanced Technology
https://ecardfile.com/id/RobElliott
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
> Behalf Of [EMAIL PROTECTED]
> Sent: Monday, October 04, 2004 2:46 PM
> To: [EMAIL PROTECTED]
> Subject: [t13] Documents posted
>
>
> This message is from the T13 list server.
>
>
>
>
>
>
> These docs have been posted to the T13 website.
>
> This one was passed around at the August meeting.
> It is the presentation from TCG
> e04134r0 ? Supplemental info for e04128r0 (Assignments for TCG)
>
> These are new proposals
> e04130r0 - Increased Self-Test Polling Time
> e04127r0 - Correction to Serial ATA Signature
>
> This is an update to the existing proposal
> e04128r2 - Assignments for TCG
>
> Thank You !!!
> -----------------------------------------------------------------
> Jim Hatfield
> ATA Interface Firmware & T13 (ATA/ATAPI) Standards Representative
> Seagate Technology LLC
> e-mail: [EMAIL PROTECTED]
> s-mail: 389 Disc Drive; Longmont, CO 80503 USA
> voice: 720-684-2120
> fax....: 720-684-2711
> ====================================================
>
>
