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I can find nothing in ATA/ATAPI-6 that specifies the initial state of
the nIEN bit... What is the proper setting of the nIEN bit following
Power On Reset and Hardware Reset? Does a device ever change the
value of the nIEN bit on its own?

My opinion is that nIEN is 0 at the end of a Power On or Hardware
reset and the only other way the bit changes value is via a IOW-
cycle that updates the Device Control register.


***  Hale Landis  *** [EMAIL PROTECTED] ***
*** Niwot, CO USA ***   www.ata-atapi.com   ***


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