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HDMI-FMC_User_Manual
August 6, 2019
The HDMI-compatible receiver on the ADV7619 allows active equalization of the HDMI data signals.
This equalization compensates for the high frequency losses inherent in HDMI and DVI cabling,
especially at longer cable lengths and higher frequencies. The HDMI-compatible receiver is capable
of equalizing for cable lengths up to 30 meters to achieve robust receiver performance.
For video format with pixel clock higher than 170MHz, the video signals received on the HDMI
receiver are outputed directly to the pixel port output. To accommodate the higher bandwidth required
for these higher resolutions, the output on the pixel bus consists of two 24-bit buses running at up to
150 MHz: one bus contains the even pixels, and the other bus contains the odd pixels. When these
two buses are combined, they allow the transfer of video data with pixel clocks up to 300 MHz. In
this mode, both 4:4:4 RGB 8-bit and 4:2:2 12-bit are supported.
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Register Table for HDMI RX Chip
Please refer to ADV7619 Datasheet and ADV7619 Reference Manual (UG-237) in the
HDMI-FMC_v.1.1.0_SystemCD.zip\Datasheet for the register tables of HDMI Receiver chip
(ADV7619).
3-3
Level shift
For the voltage matching between FMC connector and HDMI transmitter/receiver IC, EPM2210,
LSF0102 and TXB0104 are employed for the level shift. For HDMI transmitter/receiver IC, the I/O
voltage is 3.3V while the I/O voltage of all four FMC connectors is adjustable within
1.2/1.5/1.8/2.5/3.0V.
The MAX II architecture supports the MultiVolt I/O interface feature, which allow the EPM2210 to
interface with systems of different supply voltages. EPM2210 has one set of VCC pins for internal
operation(VCCINT), and up to four sets for input buffering and I/O output drivers buffers(VCCIO).
Users can connect VCCIO pins to either a 1.5/1.8/2.5/3.3V power supply, depending on the output
requirement. The output levels are compatible with systems of the same voltage as the power supply.
When VCCIO pins are connected to a 3.3V power supply, the output high is 3.3V and is compatible
with 3.3V systems. When VCCIO pins are connect to 2.5V power supply, the output high is 2.5V and
is compatible with 2.5V systems.
LSF0102 is a 2 channel bidirectional voltage level translator operational from 0.95 to 4.5 V on A port
1.8 to 5.5 V on B port. TXB0104 is a 4-bit bidirectional voltage level translator with auto direction
Summary of Contents for HDMI-FMC
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