HDCP 1.4 Key Input Interface (AXI4-Stream Slave Interface) - 1.2 English

HDMI 2.1 Transmitter Subsystem Product Guide (PG350)

Document ID
PG350
Release Date
2022-04-27
Version
1.2 English

The following table shows the signals for HDCP 1.4 key interface. This interface runs at the hdcp14_key_aclk (which is running at the AXI4-Lite clock).

Table 1. HDCP 1.4 Key Input Interface
Name I/O Width Description
HDCP_KEY_IN_tdata I 64 HDCP 1.4 key data
HDCP_KEY_IN_tlast I 1 End of key data
HDCP_KEY_IN_tready O 1 Ready
HDCP_KEY_IN_tuser I 8 Start of key data
HDCP_KEY_IN_tvalid I 1 Valid
hdcp14_key_aclk O 1 AXI4-Stream clock
hdcp14_key_aresetn O 1 Reset (Active-Low)
hdcp14_start_key_transmit O 1 Start key transmit
hdcp14_reg_key_sel O 3 Key select