Interfacing the SX to common types of IO ports:

Also:

Interfacing to Devices
RS-232 / I²C-Adapter & Parallel I/O Module
Custom bi-directional 2-wire interface. Primarily a nice UART with Parity, but it also includes code for a bi-directional 2-wire interface (halfduplex serial line + write enable line used for direction synchronization). By Peter Verkaik.

See also:

http://www.lastditcheffort.org/~adam/projects/keyboard/keyboard.html Apple Chording Keyboard "Another plastic fruit-based peripheral. " built around an 18-pin SX microcontroller but the source code has apparently been lost.+

file: /Techref/scenix/lib/io/ports.htm, 2KB, , updated: 2005/10/12 16:29, local time: 2025/7/14 07:16,

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<A HREF="http://techref.massmind.org/techref/scenix/lib/io/ports.htm"> SX Microcontroller Input / Output Ports</A>

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SX Microcontroller Input / Output Ports

SX Microcontroler IO Port Setup

Interfacing the SX to common types of IO ports:

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