|#F7XX||%xxxx0x11 xxxxxxxx||[[8255]] PIO Control-Register|| - ||Write
|-
|#F880-#F88F||%1111 1000 1000 BBCC||[[PlayCity]] Expansion (CTC #F880-F883 Channels, and YMZ Right #F884 and , YMZ Left #F888 Data)|| - || Write
|-
|#F890-#F8AF||%1111 1000 10xx xxxx||[[ACME]] WIP Expansion|| ? || ?
|#F8FF||N/A||[[Peripheral Soft Reset]] (MC_BOOT_PROGRAM and MC_START_PROGRAM do OUT [F8FF],FF)|| - ||Write
|-
|#F980 - #F98F||%1111 1001 1000 BBCC||[[PlayCity]] Expansion (CTC #F980-F983 Ghost Channels, and YMZ Right #F984 and , YMZ Left #F988 Registers)|| - || Write
|-
|#F990 - #F9AF||%1111 1001 10xx xxxx||[[ACME]] WIP Expansion|| ? || ?
|-
|#F9B0||?||[[VIDI digitizer|Vidi-CPC Video-Digitiser]], Config (W) and Capture Data (R)||Read||Write