What is the SPI voltage level

[helen]

Hi

         I looked in the nRF9160_PS_v2.0.pdf，I can not find the voltage level of SPI signal pins，Does the voltage level of SPI signal pins equal to the voltage supply to the VDD_GPIO pin？

[Kenneth]

Does the voltage level of SPI signal pins equal to the voltage supply to the VDD_GPIO pin

Yes.

Kenneth