Timekeeping, CLKOUT, timestamp with the interface active Application for the PCF2127AT TCXO

Timekeeping, CLKOUT, timestamp with the interface active Application for the PCF2127AT/PCF2129AT TCXO. The PCF212xAT is a CMOS Real Time Clock (RTC) and calendar IC with an integrated Temperature Compensated crystal (Xtal) Oscillator (TCXO) based on an integrated 32.768 kHz tuning fork quartz crystal optimized for very high accuracy and very low power consumption