Used by [[CPCI_RS232_Interface]] (DIY german magazine CPC Schneider International):
F8DCh CPCI Serial Interface MC6850 Control/Status Register (R/W)
F8DDh CPCI Serial Interface MC6850 Data Register (R/W)
Used by [[KDS Electronics Serial Interface]]:
FBECh KDS RS232 6850 (reversed-bit-order) Control (W)
FBEDh KDS RS232 6850 (reversed-bit-order) TX Data (W)
Used by [[AMSSIO]] (DIY by Martin Zacho):
FBF0h AMSSIO Serial Interface MC6850 Control/Status Register (R/W) Port addresses and other details on FBF1h AMSSIO are unknownSerial Interface MC6850 Data Register (R/W) Input CLK varies from version to version (v1,v2,v3), in some versions, the input CLK is jumper-selectable IRQ pin is not connected (can be read only by software, in Status.Bit7)
Used by [[Music Machine]] (in this case, as MIDI interface, not as RS232 interface):
F8ECh Music Machine ACIA Control (W)
F8EDh Music Machine ACIA Data write (W)