Data Sheet

The clock
Main clock
PRBMD02 embeds with a 16MHz main oscillator, and it is software configurable up scale
to higher internal frequency: 32M, 48M, 64M or 96MHz. By default it is not up scaled.
RTC
If 32.768kHz crystal is not installed (pin P16 and P17), internal RC oscillator circuit can be
then enable by firmware and be use as real time clock. This internal RC oscillator circuit
will be calibrated periodically. External 32.768KHz circuit is illustrated as below:!
PRBMD02 DATASHEET 1.10
K-SOLUTION
13
GND
P34
P00
P01
P02 P03
TM
P09/TX
GND
GND
P33
P32
P31
P25
3.3V
GND
9mm
9mm
GND
P34
P00
P01
P02 P03
TM
P09/TX
GND
GND
P33
P32
P31
P25
3.3V
GND
9mm
9mm
PRMBD01 front view, with shielding
PRMBD01 front view, without shielding
32.768kHz
20PF
20PF