Does anyone know how to access the TI-89 data port? I would like to design an interface to use the TI-89 as a portable display monitor for serial data (NMEA 0183 standard 4800 baud). Preferrably under BASIC bust assembly (if neccessary). Bert -- Bert van den Berg BV Engineering bvdb@cruzpro.co.nz http://www.cruzpro.co.nz 90B Don Buck Rd. Massey 1008 New Zealand Tel: 64-9-833-5065 Fax: 64-9-833-5875