[MtFuji] RE: Posted: circuit design example

keiji_katata at post.pioneer.co.jp keiji_katata at post.pioneer.co.jp
Thu Sep 10 23:46:12 PDT 2009


* From the T10 Reflector (t10 at t10.org), posted by:
* keiji_katata at post.pioneer.co.jp
*
* From the T10 Reflector (t10 at t10.org), posted by:
* keiji_katata at post.pioneer.co.jp
*
Yes, you are right.
The R1 and R2 are the switch that change the configuration. In the case of
this
circuit design, for test, R1 is set to be short, R2 is set to be open. I
think
drive manufactures may have better idea than this method.
Best regards,
Keiji Katata
PIONEER CORP.
"Leete, Brian A" <brian.a.leete at intel.com>@avc-pioneer.com on 2009/09/11
05:31:29
mtfuji5 at avc-pioneer.com$B$KJV?.$7$F$/$@$5$$(B
$BAw?.<T(B:	  owner-mtfuji5 at avc-pioneer.com
$B08 at h(B:  "keiji_katata at post.pioneer.co.jp"
<keiji_katata at post.pioneer.co.jp>,
       "mtfuji5 at avc-pioneer.com" <mtfuji5 at avc-pioneer.com>
cc:    "t10 at t10.org" <t10 at t10.org>, "Frank.Chu at hitachigst.com"
       <Frank.Chu at hitachigst.com>
$B7oL>(B:  [MtFuji] RE: Posted: circuit design example
Katata-san,
Thank you for posting this diagram.
>From this diagram it looks like the resistor in the drive changes depending
on
whether or not the drive is in a manufacturing environment. This means that
the
drive must be physically configured for manufacturing test. I assume a
shipping
drive will have jumpers on the motherboard or some similar capability.
Is this an acceptable solution for drive manufacturers?
Brian
-----Original Message-----
From: keiji_katata at post.pioneer.co.jp
[mailto:keiji_katata at post.pioneer.co.jp]
Sent: Thursday, September 10, 2009 7:10 AM
To: mtfuji5 at avc-pioneer.com
Cc: t10 at t10.org; Frank.Chu at hitachigst.com; Leete, Brian A
Subject: Posted: circuit design example
Hello all,
I posted circuit design example on ftp.
 ftp.avc-pioneer.com/Mtfuji_7/Proposal/Sep09/CircuitDiagram_3.ppt
There are two notes.
Note 1:
 The circuit design and the value of registor(s) are example. Drive vender
may
have other parts or different value of registor(s).
Note 2:
 VCC of 3.3V is requierment from drive venders. Because IC of drives will use
3.3V VCC.
Best regards,
Keiji Katata
PIONEER CORP.
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