From: ohland@charter.net   
      
   Ryan, I place NO faith in any IBM documentation as being %100 correct.   
   BUT... this patent description might be useful. I can HTML-ize it.   
      
   A map of the PCI configuration data space is shown in Table II:   
      
   TABLE II   
   BYTE(S) DESCRIPTION ACCESS TYPE   
   0-1 Vendor Identification Read Only   
   2-3 Device Identification Read Only   
   4-5 Command Read/Write   
   6-7 Status Read/Write   
   8 Revision D Read Only   
   9-Bh Class Code Read Only   
   Ch. Cache Line Size Read/Write   
   Dh Latency Timer Read/Write   
   Eh Header Type Read Only   
   Fh Built In Self Test Read/Write   
   10-2th Base Address Registers Read/Write   
   28h-2Fh Reserved M   
   3Oh-33 Expansion ROM Base Address Read/Write   
   34h-37h Reserved o   
   38h-3B Reserved   
   3Ch Interrupt Line Read Only   
   3Dh Interrupt Pin Read Only   
   3Eh MinGNT Read Only   
   3Fh Max-LAT Read Only   
   40h-FF Device Specific -   
      
   Louis Ohland wrote:   
   > https://www.ardent-tool.com/docs/patent/US5446869.pdf   
   >   
   > I sang this song a hundred, maybe a thousand years ago   
   > No one ever listens, I just play and then I go   
   > Off into the sunset like the Western heroes do   
   > Tell me what you're gonna do   
   >   
   >   
   > Ryan Alswede wrote:   
   >>> Yes, in a general way. No. No.   
   >>   
   >> https://www.ardent-tool.com/docs/pdf/PS2_Model_80_Technical_R   
   ference_Apr87.pdf   
   >>   
   >>   
   >> Pages 81 and 82.   
   >>   
   >> Disable interrupts   <-probably not possible in DOS mode   
   >> Push CDSETUP high. 0x96 bit 3   
   >> Disable the card.  0x102 bit 0 to off   
   >> Do POS / XPOS   
   >> Enable the card 0x102 bit 0 to on   
   >> Set CDSETUP Low 0x96 write 0x00   
   >> Reenable interrupts   
   >>   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)