|#F7XX||%xxxx0x11 xxxxxxxx||[[8255]] PIO Control-Register|| - ||Write
|-
|#F880-#F88F||%1111 100x 1000 1000 BBCCxxxx||[[PlayCity]] Expansion (CTC channels and YMZ data)|| - || Write
|-
|#F890-#F89F||%1111 100x 1001 xxxx||[[MultiPlay]] Expansion|| Read || -
|#F8FF||N/A||[[Peripheral Soft Reset]] (MC_BOOT_PROGRAM and MC_START_PROGRAM do OUT [F8FF],FF)|| - ||Write
|-
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|#F980-#F98F||%1111 1001 100x 1000 BBCCxxxx||[[PlayCity]] Expansion (CTC channels (mirror) and YMZ registers)|| - || Write
|-
|#F990-#F99F||%1111 100x 1001 xxxx||[[MultiPlay]] Expansion (mirror)|| Read || -