DisplayPort Intel® Stratix® 10 FPGA IP Design Example User Guide

ID 683887
Date 1/07/2022

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Document Table of Contents hdcp2x_rx_kmem.v file

For hdcp2x_rx_kmem.v file
  • To identify the correct HDCP2 RX DCP key file for hdcp2x_rx_kmem.v, make sure the first 4 bytes of the file are “0x00, 0x00, 0x00, 0x02”.
  • The keys in the DCP key files are in little-endian format
Figure 19. Byte mapping from HDCP2 RX DCP key file into hdcp2x_rx_kmem.v

Figure below shows the exact byte mapping from HDCP2 RX DCP key file into hdcp2x_rx_kmem.v

Note: The byte number displays in below format:
  • Key size in bytes * key number + byte number in current row + constant offset + row size in bytes * row number
  • 862*n indicates that each key set has 862 bytes.
  • 16*y indicates that each row has 16 bytes. There is an exception in cert_rx_prod where ROW 32 has only 10 bytes.
Figure 20. HDCP2 RX DCP key file filling with junk values
Figure 21. Wire Arrays of hdcp2x_rx_kmem.v

This figure shows the wire arrays for hdcp2x_rx_kmem.v (cert_rx_prod, kprivrx_qinv_prod, and lc128_prod) map to the example of HDCP2 RX DCP key file in Figure 20

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