Xilinx HDMI 1.4 Product Manual page 51

Include HDCP 2.2 Encryption: This option enables HDCP 2.2 encryption.
Max bits per component: This option selects the maximum bits per component. The
allowable options are, 8, 10, 12 or 16 bits. This parameter is to set the maximum "allowed"
bits per component, and the actual bits per component can be set from the software API to
a different value. However, the actual bits per component is bounded by the Max bits per
component. For example, if the Max bits per component is set to 16, the user can set the
actual bits per component from the software API to any of the values, 8, 10, 12 or 16. But if
the Max bits per component is set to 8, you can only set the actual bits per component to
8 through the software API. See
Number of pixels per clock on Video Interface: This option selects the number of pixels
per clock. The allowable options are 2 or 4 pixels.
Pixels per clock (PPC) can only be selected at IP generation time, and must remain static
IMPORTANT:
in the design. Some video format with a total horizontal resolution that is NOT divisible by 4 (for
example, 720p60 has a total horizontal pixel of 1650, which is not divisible by 4) are not supported. If
the design is intended to support this kind of video formats, ensure that PPC=2 is selected in Vivado.
Video over AXIS compliant NTSC/PAL Support: This option enables the HDMI TX
subsystem to support Video over AXIS compliant NTSC/PAL.
• A pixel repetition of 2 is supported by current hardware
• 480i60 and 576i50 resolutions are supported in current software.
Video over AXIS compliant YUV420 Support: This option enables the HDMI TX
subsystem to support Video over AXIS compliant YUV420.
For YUV420 Video, the line width is doubled, therefore, all the horizontal resolution fields
IMPORTANT:
must be divided by 2 to be supported in the HDMI TX Subsystem. For example, when PPC=2 is selected
in the Vivado IDE, the total horizontal resolution must be divisible by 4 (instead of 2). In this case,
720p60 has a total horizontal pixel of 1650, which is not divisible by 4, so it is not supported for
YUV420 format. Similarly, when PPC=4 is selected in Vivado, the total horizontal resolution need to be
divisible by 8 (instead of 4).
Hot Plug Detect Active: This option selects the HPD active polarity. The allowable options
are High or Low.
HDCP 1.4 and 2.2 Encryption options are only configurable if you have a HDCP license, else it
Note:
is disabled and greyed out from the GUI.
HDMI 1.4/2.0 TX Subsystem
PG235 October 4, 2017
Table 3-1 for more details on bit mapping.
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Chapter 4: Design Flow Steps
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