Changes
|#F8EC||?||[[Music Machine]] ACIA Control|| - ||Write
|-
|#F8ED||?||[[Music Machine]]| ACIA Data | Write| - || Write
|-
|#F8ED||?||[[Schneider RS232 Interface]] Z80 STI Receiver Status Register||Read||Write
|-
|#F8EE||?||[[Music Machine]]| ACIA Status||Read|| -
|-
|#F8EE||?||[[Schneider RS232 Interface]] Z80 STI Transmitter Status Register||Read||Write
|#F8EF||?||[[Schneider RS232 Interface]] Z80 STI USART Data Register||Read||Write
|-
|#F8EF||?||[[Music Machine]]| ACIA Data Read||Read|| -
|-
|#F8E2 - #F8E4||?||[[Universeller EPROM Programmer 4004|Dobbertin Eprommer 4003]]||?||?
