Video and Image Processing Suite User Guide

ID 683416
Date 4/04/2022
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19.1. Interlacer Parameter Settings

Table 60.  Interlacer II Parameter Settings
Parameter Value Description
Maximum image height 32–8192, Default = 1080 Specify the maximum number of lines in the input frame/field.
Bits per color sample 4–16, Default = 8 Select the number of bits per color plane per pixel.
Number of color planes 1–3, Default = 2 Select the number of color planes per pixel.
Number of pixels in parallel 1, 2, 4, 8, Default = 1 Select the number of pixels transmitted per clock cycle.
Color planes transmitted in parallel On or Off Select whether to send the color planes in parallel or in sequence (serially).
Enable interlace passthrough On or Off
  • Turn on to enable passthrough or interlace fields.
  • Turn off to discard the interlaced fields at the input.

If you enable run- time control, this setting serves as the reset value of this feature which may be turned on or off at run time.

Send F1 first On or Off
  • Turn on to start interlaced streams with an F1 field.
  • Turn off to start interlaced streams with an F0 field.

If you enable run- time control, this setting serves as the reset value of this feature which may be turned on or off at run time.

Enable control packet override On or Off Turn on to enable the control packet nibble to override the default interlace sequence for progressive frames that have been created and tagged by a deinterlacer.

If you enable run- time control, this setting serves as the reset value of this feature which may be turned on or off at run time.

Run-time control On or Off Turn on to enable run-time control of the interlacer features. When you turn on this parameter, the Go bit gets deasserted by default. When you turn off this parameter, the Go is asserted by default.
Note: The progressive passthrough may only be enabled if you turn on this parameter.
Add extra pipelining registers On or Off Turn on this parameter to add extra pipeline stage registers to the data path. You must turn on this parameter to achieve:
  • Frequency of 150 MHz for Cyclone V devices
  • Frequencies above 250 MHz for Intel® Arria® 10, Intel® Cyclone® 10 GX, Arria V, or Stratix V devices
Reduced control register readback On or Off

If you do not turn on this parameter, the values of all the registers in the control slave interface can be read back after they are written.

If you turn on this parameter, the values written to registers 3 and upwards cannot be read back through the control slave interface. This option reduces ALM usage.