Hi, when I use the SPI or I2C interface of the 16C74, where can I select a desired Clock rate? I think, I2C has a 100kHz and a 400kHz variant; which is used with the 16C74? I have searched the manual for this but couldn't find a word. Wolfram Liebchen -- +-----------------------------------------------+ ! Wolfram Liebchen, liebchen@ipserv.ffo.fgan.de ! ! Forschungsinstitut fuer Optik ! ! Schloss Kressbach ! ! D-72072 Tuebingen ! ! Tel: +49 (0)7071 / 709-158 ! ! Fax: +49 (0)7071 / 709-270 (G3 / G4) ! +-----------------------------------------------+