== I/O Ports ==
Used in standard RS232 interfaces for the CPC ([[Amstrad_Serial_Interface]]), mapped to following Ports:
FADFh Amstrad RS323 Z8470 (Z80 DART) Channel B Control/Status (R/W)
== Chip Variants (DART, SIO/0, SIO/1, SIO/2, SIO/3, SIO/4)==
Most CPC interfaces should contain the DART chips. Eventually some might use the SIO chips (which are including some additional features).