PORTIBM PC Portable (uses same BIOS as XT) 56E8-56E9 - C&T 82c480 - EXTENDED CONFIGURATION REGISTER 1 Note: the 82c480 is an 8514/A-compatible video chipset SeeAlso: PORTIBM PC Portable (uses same BIOS as XT) 52E8h"C&T",PORTIBM PC Portable (uses same BIOS as XT) 5AE8h"C&T",PORTIBM PC Portable (uses same BIOS as XT) 5EE8h"C&T" 56E8w RW Extended Configuration Register 1