AR# 66741

HDCP 2.2 - HDCP1.x - Do I need to have both the HDCP 1.x and HDCP 2.2 cores, or is HDCP 2.2 backward compatible with HDCP 1.x?

Do I need to have both the HDCP 1.x and HDCP 2.2 cores, or is HDCP 2.2 backward compatible with HDCP 1.x?

In order to support both HDCP 1.4 and HDCP 2.2, you will need to include both IPs in the HDMI or DisplayPort Subsystem IPs.

This is because High-bandwidth Digital Content Protection (HDCP) 1.x and 2.x are 2 different algorithms.

HDCP 2.x is a completely different link protection based on AES and is not backward compatible.

For more information, see the overview of HDCP v2.X on Wikipedia.

本答复记录是否对您有帮助？

Answer Number	问答标题	问题版本	已解决问题的版本
42166	HDCP 1.x - Release Notes and Known Issues for the Vivado 2015.1 tool and later versions	N/A	N/A
54546	HDMI 1.4/2.0 Receiver (RX) Subsystem - Release Notes and Known Issues for the Vivado 2015.1 tool and later versions	N/A	N/A
65911	HDMI 1.4/2.0 发送器 (TX) 子系统 — Vivado 2015.4 工具及更新版本的版本说明和已知问题	N/A	N/A
66762	HDCP 2.2 - Release Notes and Known Issues for the Vivado 2013.1 tool and later versions	N/A	N/A
59384	DisplayPort TX Subsystem - Release Notes and Known Issues for Vivado 2015.4 and newer tool versions	N/A	N/A
70294	DisplayPort 1.4 RX Subsystem - Release Notes and Known Issues for Vivado 2018.1 and newer tool versions	N/A	N/A
70295	DisplayPort 1.4 TX Subsystem - Release Notes and Known Issues for Vivado 2018.1 and newer tool versions	N/A	N/A
65447	DisplayPort RX Subsystem - Release Notes and Known Issues for Vivado 2015.4 and newer tool versions	N/A	N/A

AR# 66741
日期	06/21/2019
状态	Active
Type	综合文章
IP	HDMI DisplayPort DisplayPort RX Subsystem DisplayPort TX Subsystem More Less