Information about cable, connector or adapter : C64 RS232 User Port   BUY CHEAP c64 rs232 user port  C64 RS232 User Port  Originally developed by :  Copyright :  Source :  Category :   All cables and connectors > Connectors > Computer > Video >  Added to database : 2005-12-20 11:39:32  Description : Available on the Commodore C64/C128. Software emulated. The signals does not have true RS232 levels. It's TTL level, and RXD/TXD is inverted. It's just the normal User Port, used as a RS232 port.  Pinout : 0 Pin Name Direction Color Description A GND Protective Ground B+C FLAG2+PB0 Receive Data (Must be applied to both pins!) D PB1 Ready To Send E PB2 Data Terminal Ready F PB3 Ring Indicator H PB4 Data Carrier Detect K PB6 Clear To Send L PB7 Data Set Ready M PA2 Transmit Data N GND Signal Ground  Note : C64 RS232 User Port COMMENTS:

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