This document defines the 1.2 V Pseudo Open Drain Interface family of interface standards, POD12, which are generally expected to be implemented with differential amp-based input buffers that, when in single-ended mode, employ an externally supplied (or internal supplied) reference voltage controlled trip-point.
Although this standard is named for the nominal value of VDDQ to be used, it is the input trip-point value that provides for inter operability of POD12 compliant devices.