Xilinx HDMI 1.4 Product Manual page 28

Video Input Stream Interface
This HDMI 1.4/2.0 Transmitter Subsystem is supporting two types of video input stream
interfaces, which eventually is mapped to HDMI 1.4/2.0 Transmitter Subsystem VIDEO_IN
interface.
• AXI4-Stream Video interface
• Native Video Interface
Table 2-2 shows the signals for AXI4-Stream video input streaming interface. This interface
is an AXI4-Stream slave interface and runs at the s_axis_video_aclk clock rate. The
data width is user-configurable in the Vivado IDE by setting Max Bits Per Component
(BPC) and Number of Pixels Per Clock on Video Interface (PPC).
Table 2‐2: Video Input Stream Interface
Name
s_axis_video_aclk
s_axis_video_aresetn
VIDEO_IN_tdata
VIDEO_IN_tlast
VIDEO_IN_tready
VIDEO_IN_tuser
VIDEO_IN_tvalid
Native Video Input Interface
Table 2-3 shows the signals for Native video input interface. This interface is a standard
video interface and runs at video_clk clock rate. The data width is user-configurable in
the Vivado IDE by setting Max Bits Per Component (BPC) and Number of Pixels Per Clock
on Video Interface (PPC).
Table 2‐3: Native Video InputInterface
Name
video_clk
VIDEO_IN_active_video
VIDEO_IN_data
VIDEO_IN_hsync
HDMI 1.4/2.0 TX Subsystem
PG235 October 4, 2017
Direction
Input
Input
Input
Input
Output
Input
Input
Direction
Input
(4)
Input
Input
(4)
Input
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Width
1 AXI4-Stream clock
1 Reset (Active-Low)
3*BPC*PPC Data
1 End of line
1 Ready
1 Start of frame
1 Valid
Width
1 Video clock
1 Active video
3*BPC*PPC Data
1 Horizontal sync
Chapter 2: Product Specification
Description
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