I am having an external crystal of 32.768 Khz and I want to connect it to the IC,but as given in the IC's block diagram on page 24, I have a CLKIN and CLKOUT on the pin 1 and 22 respectively. But as given in the Pinout as well as in the typical operating curcuit, it is said that the pin 22 is RESV and in description it says "Reserved. Do not connect".
I am unable to figure how the crystal needs to be connected. Should I connect one leg of the crystal to the GND or VCC?
Any help is appreciated.