HDMI 1.4/2.0 TX Subsystem
31
PG235 October 4, 2017
Chapter
2:
Product Specification
HDMI Link Output Interface
shows the HDMI Link Output interface signals. This interface runs at the
link_clk
clock rate.
Data Display Channel Interface
shows the Data Display Channel interface signals.
HDCP 1.4 Key Input Interface (AXI4-Stream Slave Interface)
shows the signals for HDCP 1.4 key interface. This interface runs at the
hdcp14_key_aclk
(which is running at AXI4 Lite Clock).
Table
2
‐
6:
HDMI Link Output Interface
Name
Direction
Width
Description
link_clk
Input 1
Link
clock
LINK_DATA0_OUT_tdata
Output
40
Link data 0
LINK_DATA0_OUT_tvalid
Output
1
Link Data 0 Valid
LINK_DATA1_OUT_tdata
Output
40
Link data 1
LINK_DATA1_OUT_tvalid
Output
1
Link Data 1 Valid
LINK_DATA2_OUT_tdata
Output
40
Link data 2
LINK_DATA2_OUT_tvalid
Output
1
Link Data 2 Valid
Table
2
‐
7:
Data Display Channel (DDC) Interface
Name
Direction
Width
Description
ddc_scl_i
Input
1
DDC serial clock in
ddc_scl_o
Output
1
DDC serial clock out
ddc_scl_t
Output
1
DDC serial clock tri-state
ddc_sda_i
Input
1
DDC serial data in
ddc_sda_o
Output
1
DDC serial data out
ddc_sda_t
Output
1
DDC serial data tri-state
Table
2
‐
8:
HDCP 1.4 Key Input Interface
Name
Direction
Width
Description
HDCP_KEY_IN_tdata
Input
64
HDCP 1.4 key data
HDCP_KEY_IN_tlast
Input
1
End of key data
HDCP_KEY_IN_tready
Output
1
Ready
HDCP_KEY_IN_tuser
Input
8
Start of key data
HDCP_KEY_IN_tvalid
Input 1
Valid
