PORTIBM PC Portable (uses same BIOS as XT) 0CFB - Intel 82434NX (Neptune) - PCI MECHANISM CONTROL REGISTER Note: not present on the 82434LX (Mercury), which supports only mechanism #2 SeeAlso: PORTIBM PC Portable (uses same BIOS as XT) 0CF8h 0CFB RW specify which PCI access mechanism is to be enabled Bitfields for Intel 82434NX PCI mechanism control register: Bit(s) Description (Table P0947) 7-1 reserved 0 PCI Configuration Access Mechanism Select =0 use PCI configuration access mechanism #2 (0CF8/0CFA) (default) =1 use PCI configuration access mechanism #1 (0CF8/0CFC)