3.2 I/O Ports

The following table lists the important I/O ports of the design.

Table 3-1. Important I/O Ports
I/O Port	Direction	Description
LANE0_RXD_N	Input	Lane 0 RX channel N
LANE0_RXD_P	Input	Lane 0 RX channel P
LANE1_RXD_N	Input	Lane 1 RX channel N
LANE1_RXD_P	Input	Lane 1 RX channel P
LANE2_RXD_N	Input	Lane 2 RX channel N
LANE2_RXD_P	Input	Lane 2 RX channel P
LANE3_RXD_N	Input	Lane 3 RX channel N
LANE3_RXD_P	Input	Lane 3 RX channel P
REF_CLK_PAD_N	Input	Reference clock N
REF_CLK_PAD_P	Input	Reference clock P
REF_CLK_27_MHz	Input	Reference clock
REF_CLK_PAD_N_CABLE_CLK	Input	Reference clock cable clock N
REF_CLK_PAD_P_CABLE_CLK	Input	Reference clock cable clock P
SDA_RX_O	Output	Serial data
SCL_RX_I	Input	Serial clock
HPD_TX_I	Input	Hot plug detect input for TX
HPD_RX_5V_N	Input	Hot plug detect input for RX
HDMI_TX_SDA	Output	Serial data
HDMI_TX_SCL	Output	Serial clock
LANE0_TXD_N	Output	Lane 0 TX channel N
LANE0_TXD_P	Output	Lane 0 TX channel P
LANE1_TXD_N	Output	Lane 1 TX channel N
LANE1_TXD_P	Output	Lane 1 TX channel P
LANE2_TXD_N	Output	Lane 2 TX channel N
LANE2_TXD_P	Output	Lane 2 TX channel P
LANE3_TXD_N	Output	Lane 3 TX channel N
LANE3_TXD_P	Output	Lane 3 TX channel P
HDMI_RX_HPD_N_O	Output	Hot plug detect output

AN4768