Schneider RS232 Interface

RS232 Interface for the Amstrad CPC by Schneider

Not much is known about this specific device or accompanying software but it looks like a standard RS232 port. If you have more details please do provide them!

Pictures

• The Schneider RS232 interface
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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).