PORTIBM PC Portable (uses same BIOS as XT) E2E8-E2E9 - 8514/A and compatible - PIXEL DATA TRANSFER Desc: all graphics data to be processed by the Graphics Engine is sent through this port Notes: supported by ATI Graphics Ultra supported by S3 chipsets when PORTIBM PC Portable (uses same BIOS as XT) 03D4h register 40h bit 0 is set E2E8w -W drawing control: pixel data transfer E2EAw rW drawing control: pixel data transfer (S3 801+) for 32-bit transfers