Changes
Image:schneider rs232 1.jpg|
</gallery>
== I/O Ports ==
F8E0h Z80 STI Indirect Data Register Read Write
F8E1h Z80 STI Gen. Purpose I/O Interrupt Read Write
F8E8h Z80 STI Pointer Vector Register Read Write
F8ECh Z80 STI USART Control Register Read Write
F8EDh Z80 STI Receiver Status Register Read Write
F8EEh Z80 STI Transmitter Status Register Read Write
F8EFh Z80 STI USART Data Register Read Write
== Notes ==
Supported by "Starwriter". A "Z80 STI" is a 40pin MK3801 chip from Mostek?
Details on that chip are reportedly found in the "MOSTEK 1982/1983
Microelectronic Data Book" (but there are no data sheets in the internet
yet). The MK68901 seems to be a newer/similar chip (but neither port
addresses nor pinouts are backwards compatible).
Schneider is the german distributor for Amstrad hardware (however, this
interface seems to be Schneider's own invention, not an Amstrad product).
[[Category:Hardware]] [[Category:Peripherals]] [[Category:Serial_interfaces]]
