F28027 X1 pin

Kazuaki Ohshita said:

Hello,

My customer asked if a 1.8-V external oscillator
can be connected to the X1 pin of F28027.

Is it possible and guaranteed ?

Thanks and regards,
Kazuaki Ohshita

On 2802x this pin is for the internal on-chip oscillator input only.  Please refer to the pin descriptions in the data manual:

On-chip crystal-oscillator input. To use this oscillator, a quartz crystal or a ceramic resonator must be connected across X1 and X2. In this case, the XCLKIN path must be disabled by bit 13 in the CLKCTL register. If this pin is not used, it must be tied to GND.

-Lori