|#F9FF||?||[[Grafpad II|Hegotron grafpad II]]||?||?
|-
|#FA7E||%xxxxxx0x0 xxxxx0x0 0xxxxxxx||Floppy Motor Control (for [[765 FDC]])|| - ||Write
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|#FADC||?||[[Amstrad Serial Interface]] Z80-SIO / DART port A Data Register||Read||Write
|#FAE7||?||Port C - [[IDE8255]]||?||?
|-
|#FB7E||%xxxxxx0x1 xxxxx0x1 0xxxxxx0||[[765 FDC]] (internal) Status Register||Read|| -
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|#FB7F||%xxxxxx0x1 xxxxx0x1 0xxxxxx1||[[765 FDC]] (internal) Data Register||Read||Write
|-
|#FBBD||?||Ram select mode [[Vortex Expansions RAM card|Vortex SP512]]||?||Write