From:  tullio@umd.edu
Sent:  04/23/03 9:24:21 AM
To:  "support@ti.com" support@ti.com


PROBLEM:
I want to use the ENABLE input of the TLK2501 in order to reset the device.
What is the minimum pulse width of the ENABLE signal ?
Does it have to be synchronized with GTX_CLK ?

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Here is the response. Since enable only places the part in its iddq state,
I would consider this an asynchronous reset with respect to GTX_CLK.
The internal reset signal won't go away for at least 768 cycles of GTX_CLK
one enable is returned to a high.  We apologize but we don't have information
as to what the minimum pulse time would be since this pin was never intended
to be used as a chip reset.
Thank you for contacting Texas Instruments Technical Support.

Best regards,

Orlando
DAV/HSCC Product Champion
Americas Product Information Center
Texas Instruments Worldwide eMarketing