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ZYNQ Ultr FPGA Board AXU7EV User Manual
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HDMI_TX0_D1N
226_TX1_N
T3
HDMI Video Output Signal Data 1
Negative
HDMI_TX0_D1P
226_TX1_P
T4
HDMI Video Output Signal Data 1
Positive
HDMI_TX0_D2N
226_TX2_N
R5
HDMI Video Output Signal Data 2
Negative
HDMI_TX0_D2P
226_TX2_P
R6
HDMI Video Output Signal Data 2
Positive
HDMI_TX_LVDS_OUT_N
B64_L13_N
AH17
HDMI Video Output Clock Negative
HDMI_TX_LVDS_OUT_P
B64_L13_P
AH18
HDMI Video Output Clock Positive
HDMI_SCL_CTL
B88_L8_P
E4
IIC Clock
HDMI_SDA_CTL
B88_L8_N
D4
IIC Data
HDMI_TX0_DDC_SCL
B88_L4_N
E2
TMDS Bidirectional DDC Clock
HDMI_TX0_DDC_SDA
B88_L1_P
E1
TMDS Bidirectional DDC Data
HDMI_TX0_HPD
B88_L1_N
D1
Hot Plug Detection
HDMI_TX0_OUT_OE
B88_L4_P
E3
Operation Enable Pin
Part 3.7: HDMI Input Interface
There is 1 HDMI input interface on the carrier board. The HMDI chip uses
TI’s TMDS181IRGZT, which is a TMDS retimer chip. There is a clock and data
recovery (CDR) circuit between the HDMI input port and the output port,
supporting data rates up to 6Gbps. The HMDI interface supports up to
4K@60Hz input.
The output end of TMDS181IRGZT is connected to BANK226 GTH
transceiver, and the remaining auxiliary channels are connected to BANK88 on
the PL end. In addition, there is a PLL clock chip 8T49N241 on the board to
generate the clock source required by the HDMI IP. The hardware connection
between TMDS181IRGZT chip and FPGA is shown in Figure 3-7-1: