Hdcp Registers Available In Repeater Map - Analog Devices ADV7850 Hardware Manual

• Update bits [11:0] of
•
Update the KSV list (refer to
from all the downstream devices connected to the repeater.
•
Set ksv_list_ready
• The external controller can monitor the aksv_update_x_raw bits to be notified when the transmitter writes its AKSV into
the HDCP registers of the ADV7850 (where x is A, B, C or D).
aksv_update_a_raw, IO, Address 0x88[3] (Read Only)
Status of Port A AKSV update interrupt signal. When set to 1, it indicates that transmitter has written its AKSV into HDCP registers for
Port A. Once set, this bit remains high until it is cleared via aksv_update_a_clr.
Function
aksv_update_a_raw
0 
1
aksv_update_b_raw, IO, Address 0x88[2] (Read Only)
This readback displays the status of the Port B AKSV update interrupt signal. When set to 1, it indicates that the transmitter has written
its AKSV into the HDCP registers for Port B. Once set, this bit remains high until it is cleared via aksv_update_b_clr.
Function
aksv_update_b_raw
0 
1
aksv_update_c_raw, IO, Address 0x88[1] (Read Only)
This readback displays the status of the Port C AKSV update interrupt signal. When set to 1, it indicates that the transmitter has written
its AKSV into the HDCP registers for Port C. Once set, this bit remains high until it is cleared via aksv_update_c_clr.
Function
aksv_update_c_raw
0 
1
aksv_update_d_raw, IO, Address 0x88[0] (Read Only)
This readback displays the status of the Port D AKSV update interrupt signal. When set to 1, it indicates that the transmitter has written
its AKSV into the HDCP registers for Port D. Once set, this bit remains high until it is cleared via aksv_update_d_clr.
Function
aksv_update_d_raw
0 
1
4. Second and Subsequent AKSV Updates
When the upstream transmitter writes its AKSV for the second time or more into the ADV7850 HDCP registers, the external
controller driving the ADV7850 should set

HDCP Registers Available in Repeater Map

7.38.3
In order to enable fast switching of the HDCP encrypted HDMI ports, the registers 0x00 to 0x42 in the Repeater Map are replicated for
each port. auto_hdcp_map_enable
Rev. A May 2012
bstatus[15:0] according to the topology of the downstream device attached to the repeater.
Table 34) with the KSV from the transmitter on the back end of the repeater as well as the KSV
to 1.
Description
No AKSV updates on Port A
Detected a write access to the AKSV register on Port A
Description
No AKSV updates on Port B
Detected write access to AKSV register on Port B
Description
No AKSV updates on Port C
Detected write access to AKSV register on Port C
Description
No AKSV updates on Port D
Detected write access to AKSV register on Port D
ksv_list_ready
and hdcp_map_select[2:0]
to 1.
determine which port is currently visible to the user.
216
ADV7850