== I/O Ports ==
Used in standard RS232 interfaces for the CPC ([[Amstrad_Serial_Interface]]), mapped to following Ports:
Used in standard RS232 interfaces for the CPC ([[Amstrad Serial Interface]]), mapped to following Ports:
FADCh Amstrad RS323 Z8470 (Z80 DART) Channel A Data (R/W)
FADDh Amstrad RS323 Z8470 (Z80 DART) Channel A Control/Status (R/W)
FADEh Amstrad RS323 Z8470 (Z80 DART) Channel B Data (R/W)
FADFh Amstrad RS323 Z8470 (Z80 DART) Channel B Control/Status (R/W)
Also used by [[Z80-SIO dual ports RS232 interface for CPC (French)]], mapped to:
FC7Ch Z80 SIO Channel A Data
FC7Dh Z80 SIO Channel A Control/Status
FC7Eh Z80 SIO Channel B Data
FC7Fh Z80 SIO Channel B Control/Status
== Chip Variants (DART, SIO/0, SIO/1, SIO/2, SIO/3, SIO/4) ==