PCI power management

[jyshiuan <jyshiuan@sis.com.tw>]

Hello:

  I have a question about the PCI power management spec.
  
  In the Power management spec. about the SCR registers.
  The PME_EN and PME_STATUS bit,
      It said: 
            Sticky bit, indeterminate at time of initial operating system
boot 
            if function supports PME# rfrom D3 cold

  My question is that:
           1). what does the operating system means? BIOS or OS?
           2). who is response to initial or clear the PME_EN and
PME_STATus? BIOS or OS?
           3). If the system is boot because of one PCI card and that card
supports PCI PM,
                but at this time, I know that not all BIOS supports PCI PM.
                that means the PC chipset will always have a wakeup event 
                but don't know who assent that, and this will make the
system can not boot.
                
                Can the PCI card clear the PME_STATUS bit when the power is
back?

   
   Thanks.
                

===============================================
Jing-Yeh Shiuan
Section Manager
Datacom Focus Group
Silicon Integrated Systems Corp.
E-mail:     jyshiuan@sis.comp.tw
Phone:     886-3-5774922 ext 4302
Fax:          886-3-5790651
Email:      jyshiuan@sis.com.tw
Address:  No 16, Creation Rd 1, 
                 Science-based Industrial Park,
                 Hsin Chu, Taiwan, R. O. C.
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