PORTIBM PC Portable (uses same BIOS as XT) C000-CFFF - PCI Configuration Mechanism 2 - CONFIGURATION SPACE
Note:	to access the configuration space, write the target bus number to
	  PORTIBM PC Portable (uses same BIOS as XT) 0CFAh, then write to the Configuration Space Enable register
	  (PORTIBM PC Portable (uses same BIOS as XT) 0CF8h), and finally read or write the appropriate I/O
	  port(s) in the range C000h to CFFFh (where Cxrrh accesses location
	  'rr' in physical device 'x's configuration data)
SeeAlso: PORTIBM PC Portable (uses same BIOS as XT) 0CF8h"Mechanism 2",PORTIBM PC Portable (uses same BIOS as XT) 0CFAh"Mechanism 2"
SeeAlso: #00878 at INT 1A/AX=B10Ah