== RSX Commands ==
* '''|SETPORT,n''' - redirect MC_PRINT_CHAR (BD2Bh) (1=SIO_A, 2=SIO_B, 3=PPI.A, 4=EFxxh) (default=3)* '''|SETSIO'''* '''|TIMEOUT,n''' - set timeout (0..255)* '''|ROMCAT''' - show sideways rom directory* '''|SIOMENU''' - config menu (baudrate, parity, etc.)* '''|SENDEOF'''* '''|PORTOUT''' and '''|PORTIN''' - set direction of PPI.B (general purpose I/O port)* '''|OUTCHAR''' and '''|INCHAR'''* '''|OUTBLOCK''' and '''|INBLOCK'''* '''|OUTFILE''' and '''|INFILE'''* '''|OUTBYTE''' and '''|INBYTE'''* '''|XON''' and '''|XOFF'''* '''|LFON''' and '''|LFOFF'''* '''|DTRON''' and '''|DTROFF'''* '''|CTSON''' and '''|CTSOFF'''
== Download ==
* [[Media:Panda Electronics Communication Interface Unit Interface Driver v1.5.zip]] - PIA DRIVER rom-image (v1.5 Oct 1986)