PORTIBM PC Portable (uses same BIOS as XT) 07BC-07BE - Intel 82091AA - ECP-mode PARALLEL PORTIBM PC Portable (uses same BIOS as XT) SeeAlso: PORTIBM PC Portable (uses same BIOS as XT) 03BCh,PORTIBM PC Portable (uses same BIOS as XT) 0678h,PORTIBM PC Portable (uses same BIOS as XT) 0778h 03BC RW (when ECR bits 7-5=011) ECP Address/RLE FIFO (see #P0917) (this is the same address normally used for parallel port data) 07BC RW (when ECR bits 7-5=010) standard parallel port data FIFO (see #P0918) 07BC RW (when ECR bits 7-5=011) ECP data FIFO (see #P0919) 07BC RW (when ECR bits 7-5=110) test FIFO (see #P0920) 07BC RW (when ECR bits 7-5=111) ECP configuration A (see #P0921) 07BD RW (when ECR bits 7-5=111) ECP configuration B (see #P0922) 07BE RW extended control register (ECR) (see #P0923)