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HDMI-FMC_User_Manual
August 6, 2019
Software Reset may affect I2C communication with the CPI module. To avoid this issue perform the following:
1. Set W equal to the number of write accesses to the CPI module (I2C address 0xC0 or 0xC4).
2. Calculate N = 8 – (W mod 8), where W is the number of write accesses from step 1.
3. Before executing the Software Reset, perform N writes (from step 2) into any of the CPI page (I2C address 0xC0
or 0xC4) registers 0x00 through 0x07.
4. Execute Software Reset by setting and clearing bit 0 in TPI 0x40 register.
Note:
Software Reset is required on any input pixel clock IDCK change or interruption.
Deep Color GCP Packet
– Enable the General Control Packet transmission for Deep Color operation.
TMDS Clock Stable
– IDCK to TMDS clock is stable and the transmitter can send reliable data on the TMDS link.
A change to the IDCK sets this bit LOW. Along with a status bit for TMDS Clock Stable there is a TPI Interrupt
(TPI 0x3E[0]) for TMDS Clock Stable and a corresponding Interrupt Enable (TPI 0x3F[0]).
Alternative TMDS Clock Stable
– Similar to TMDS Clock Stable, but uses alternative method for clock checking.
There is no interrupt associated with this bit change.
3-2
ADV7619
A DV7619 is a high quality with two input ports and one output multiplexed High-Definition
Multimedia Interface receiver. It supports all mandatory 3D TV formats defined in the HDMI 1.4
specification, HDTV formats up to 1080p 36-bit Deep Color/2160p 8-bit, and display resolutions up
to 4k × 2k (3840 × 2160 at 30 Hz).
ADV7619 also supports extended colorimetry, including sYCC601, Adobe RGB, Adobe YCC601,
xvYCC extended gamut color with a dual input HDMI-cable and 297MHz maximum TMDS clock
frequency. The audio interface supports HBR
、
DSD
、
S/PDIF
、
SACD and four I2S output format. The
receiver has advanced audio functionality, such as a mute controller, that prevents audible extraneous
noise in the audio output.
shows the system block diagram of ADV7619.
Figure 3-2 ADV7619 HDMI receiver
Summary of Contents for HDMI-FMC
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