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Side effects of writing 0xffffffff to base registers?
- To: Mailing List Recipients <firstname.lastname@example.org>
- Subject: Side effects of writing 0xffffffff to base registers?
- From: Drew Eckhardt <drew@Poohsticks.Org>
- Date: Tue, 04 May 1999 14:26:35 -0600
- Delivered-To: pcisig@teleport.COM
- Resent-Date: Tue, 4 May 1999 13:50:52 -0700
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My spec is on perpetual loan to friends, and I have no clue where
it is now :-( so I can't answer my own question
When I write 0xffffffff to an address base register and read it back, the
device indicates its address space size by leaving 1 bits in the positions it
What effect does this have on the device's address space(s)? IOW, does
it continue functioning at the last non -1 value programmed in the base
register, or does it begin decoding at 0xfffffffb onward?
<a href="http://www.poohsticks.org/drew/">Home Page</a>
For those who do, no explanation is necessary.
For those who don't, no explanation is possible.