HDMI Intel® Agilex™ F-Tile FPGA IP Design Example User Guide

ID 709314
Date 12/13/2021
Public

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2.5.1. HDMI TX Components

The HDMI TX top components include the TX core top-level components, IOPLL, TX PMA Direct PHY, DCFIFO, 40bits to 64bits converter, and the output buffer blocks.
Figure 8. HDMI TX Top Components
Table 10.  HDMI TX Top Components
Module Description
HDMI TX Core

The IP receives video data from the top level and performs auxiliary data encoding, audio data encoding, video data encoding, scrambling, TMDS encoding or packetization.

IOPLL (pll_frl_tx) The IOPLL (iopll_frl) generates the FRL clock for the TX core. This reference clock receives the TX FPLL output clock.

FRL clock frequency = Data rate per lanes x 4 / (FRL characters per clock x 18)

TX PMA Direct PHY

Hard transceiver block that receives the parallel data from the HDMI TX core and serializes the data from transmitting it.

Output buffer This buffer acts as an interface to interact the I2C interface of the HDMI DDC and redriver components.
40b to 64b Converter Convert 40bits input to the 64bits output.
DCFIFO Synchronize data and signals across the System clock and TX clock domains.