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).
| 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 |