You can usually tell a Colpitts oscillator by remembering it starts with C and the feedback loop has a split capacitor (as opposed to a tapped inductor). The post also looks at Pierce oscillator ...

This crystal oscillator IO pad is designed for 1.8V OSC power supply. The IO gives clock signal under 1.8V power supply. The Pierce oscillator works in parallel mode and supports a crystal ranged from ...

This IP is a crystal oscillator DUP IO pad designed for low-power consumption applications. The pierce oscillator works in parallel mode and supports a frequency ranged from 2MHz to 8MHz, with the ...