|#F880-#F88F||%1111100x 1000xxxx||[[PlayCity]] Expansion CTC channels and YMZ data|| - || Write
|-
|#F890-#F89F||%1111100x 1001xxxx1--1xxxx||[[MultiPlay]] Expansion(mirror conflict with Z-MEM)|| Read || -
|-
|#F8A0-#F8AF||%11111000 1010xxxx||[[X-CPC]] ClockPort RTC|| Read || Write
|#F980-#F98F||%1111100x 1000xxxx||[[PlayCity]] Expansion CTC channels (mirror) and YMZ registers|| - || Write
|-
|#F990-#F99F||%1111100x 1001xxxx1--1xxxx||[[MultiPlay]] Expansion (mirror)|| Read || -
|-
|#F9A0-#F9AF||%11111001 1010xxxx||[[X-CPC]] ClockPort SPR|| Read || Write