CubeCell HTCC-AM02 GPIOs

Could someone please declare what is the number of available GPIOs on HTCC-AM02?

If I look at the schematic or pinout diagram, there are 16 GPIOs available. GPIO16 is needed for boot control which means that there are still 15 available. Anyhow at under “Hardware Resources” there is a statement that only “14 x GPIO” are available. I am a little bit confused because I really need at least 15 IO’s so before proceeding with my project I need the facts.

HTCC-AM02 has 16 GPIOs. In fact, both UART and IIC pins can be used as GPIO. So if you don’t use UART or IIC, you have more than 16 GPIOs available.