Oki ML67Q4050/4060 Series

Does the RTC of ML67Q4050/4060 Series of MCUs have calendar function?

 

Does the WCSP packaged version of Oki’s ML67Q4060 Series Advantage Microcontrollers require an advanced PCB manufacturing process?

 

I programmed the internal Flash of my ML67Q4050/4060 Series Advantage Microcontrollers and now I can no longer interface to it through JTAG. Why?

 

Can the Ring-Oscillator of Oki’s ML67Q4050/4060 Series Advantage Microcontrollers be disabled?