SX Microcontroller Input / Output Ports

SX Microcontroler IO Port Setup

IO Expansion

Interfacing the SX to common types of IO ports:

• Serial (RS-232 RS-485 USB I2C IR )
• Parallel
• Mouse Ports
• Keyboards
• Port Pin Tips, Tricks, Traps, Gens and Snares
• Edge Detection

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.