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  4. 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?

AR# 66741

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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?

描述

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?

解决方案

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.

https://en.wikipedia.org/wiki/High-bandwidth_Digital_Content_Protection#HDCP_v2.x

链接问答记录

主要问答记录

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 Transmitter (TX) Subsystem - Release Notes and Known Issues for the Vivado 2015.4 tool and later versions 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
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