The HDMI V2.1 Rx provides a complete single-link HDMI receiver function complies with HDMI specification version 2.1 It consists of two modules, a physical layer (PHY) and a link module. The PHY is upper compatible with DVI receiver and implemented as a hard IP, while the link module is implemented as a synthesizable soft IP. Built-in High-bandwidth Digital Content Protection (HDCP) cipher function protects the transmission of audio-visual content.