|#FBFE||?||[[Dk'tronics Speech Synthesizer]]||Read||Write
|-
|#FBFE||?||[[TMPI speech synthesizer]] Data Register |||| - Write
|-
|#FBFF||?||[[TMPI speech synthesizer]] Command/Status Register ||Read|| - Write
|-
|#FC00 - #FDFF||%1111110x xxxxxxxx||[[CPCISA by Yarek|CPCISA]] 16bits mode high byte latch||Read||Write