Spec issue on MSE leakage current in SPI-3
John Lohmeyer
lohmeyer at ix.netcom.com
Thu Apr 29 14:34:14 PDT 1999
* From the T10 Reflector (t10 at symbios.com), posted by:
* John Lohmeyer <lohmeyer at ix.netcom.com>
*
At 4/29/99 03:51 PM, you wrote (in part):
>
> Maybe someday we can outlaw old devices on new busses but
>for now I do not see how.
Bill,
I do not want to outlaw old devices. I just want to make it legal for new
devices to exist on the same bus. If my new device tends to clamp signals
at 3 volts (or a little higher) when an old device trys to drive it higher,
where is the harm? The receivers will still see a valid high-level
(assuming SE) and we should not see such high voltages on LVD.
The 20 uA leakage spec at 4.1V will add a lot of cost and complexity for no
benefit.
John
--
John Lohmeyer Email: lohmeyer at ix.netcom.com
LSI Logic Corp. Voice: +1-719-533-7560
4420 ArrowsWest Dr. Fax: +1-719-533-7036
Colo Spgs, CO 80907 BBS: +1-719-533-7950
*
* For T10 Reflector information, send a message with
* 'info t10' (no quotes) in the message body to majordomo at symbios.com
More information about the T10
mailing list