Terasic THDB-HDMI, Руководство пользователя

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The NIOS program is designed to run on the on-chip memory. A customized I2S controller is
designed to generate I2S 48K stereo audio for the HDMI transmitting-only mode. The audio data is
stored in the on-chip memory and sent to the HDMI transmitter by NIOS II processor.
The video pattern generator is designed to generate test patterns for HDMI transmitter-only mode. It
provides eleven video formats in three color spaces. The source selector circuit is designed to select
the desired video source between the video pattern generator and the video from the receiver. Four
LEDs and two BUTTONs on DE3 are used for human interface. BUTTONs are designed to change
the test pattern and associated color space for transmission. LEDs are designed to indicate the
HDMI status, which is illustrated in
Table 4-1 . BUTTONs are designed to change the video format
and color space of the build-in video pattern generator, which is illustrated in Table 4-2 .
Figure 4-1 System Function Block Diagram