Multiple Sinks And No Upstream Devices - Analog Devices ADV8003 Hardware Manual

Function
bksv_flag_int
0 
1
hdcp_desired, TX2 Main Map, Address 0xF4AF[7]
This bit is used to request HDCP encryption.
Function
hdcp_desired
0 
1
frame_encryption_en, TX2 Main Map, Address 0xF4AF[4]
This bit is used to request HDCP frame encryption.
Function
frame_encryption_en
0
1 
bksv[39:32], TX2 Main Map, Address 0xF4C3[7:0] (Read Only)
This register is used to readback the BKSV Byte 4 read from the downstream Rx by the HDCP controller.
enc_on, TX2 Main Map, Address 0xF4B8[6] (Read Only)
This bit is used to readback the HDCP encryption status.
Function
enc_on
0 
1

6.13.2. Multiple Sinks and No Upstream Devices

When connecting the ADV8003 as a source to an HDMI input of a repeater, it is necessary to read all BKSVs from downstream devices.
These BKSVs must be checked against a revocation list, which will be provided on the source content.
bksv_count[6:0] will read 0 when the first BKSV interrupt occurs with
the sink connected to the ADV8003 is a repeater, a second BKSV interrupt will occur. The ADV8003 will automatically read up to 13 5-
byte BKSVs at a time and store these in the EDID memory. These BKSVs can be accessed from the EDID Map, as shown in
number of additional BKSVs available stored in the EDID Map can be obtained from bksv_count[6:0]. If there are more than 13
additional BKSVs to be processed, the ADV8003 will collect the next up to 13 BKSVs from the sink, then generate another BKSV
interrupt with bksv_flag_int
Rev. B, August 2013
Description
Interrupt not active
Interrupt active. The KSVs from the downstream sink have been read and available in the
Memory Map
Description
Input audio and video content not to be encrypted
Input audio and video content should be encrypted
Description
Current video frame should not be encrypted
Current video frame should be encrypted
Description
Audio and video content not being encrypted
Audio and video content being encrypted
set to 1 when the next set is ready.
bksv_flag_int set to 1. After the first BKSV interrupt is cleared, if
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ADV8003 Hardware Manual
Table 70. The