|#FBF7||765 FDC (Vortex,ext) Data Register||Read||Write
|-
|#FC00 - #FDFF||CPCISA 16bits mode high byte latch||Read||Write
|-
|#FD00 - #FD3F||SYMBiFACE II||Read||Write
|-
|#FE00 - #FFFF||CPCISA I/O access(low byte)||Read||Write
|-
|#FEE8||Multiface II||?||?
|#FEEA||Multiface II||?||?
|-
|#FF00 - #FF2FFFXX||CPC Booster(XX=#00..#28 are used now)||Read||Write
|-
|}