Hi I4m trying to interface a PIC (f84) with a Serial timekeeper from Holtek HT1380, has anybody already written some routines to communicate with the HT1380?? What kind of routine should I use to read or write, when the function description says "All data is entered on the rising edge of SCLK and outputs on the falling edge of SCLK" ? I4m a bit confused with this !! Thanks in advance Javier