User guide

Chapter 13: Color Space Converter MegaCore Function 13–5
Parameter Settings
January 2013 Altera Corporation Video and Image Processing Suite
User Guide
The latency is measured with the assumption that the MegaCore function is not being
stalled by other functions on the data path (the output ready signal is high).
1 The latency associated with the initial buffering phase, when a MegaCore function
first receives video data, is not included.
Parameter Settings
Table 13–3 lists the Color Space Converter MegaCore function parameters in the
General Page.
Table 13–2. Color Space Converter Latency
Mode Latency
All modes O (cycles)
(1)
Note to Table 13–2:
(1) O refers to a small number of clock cycles, and is not of zero value.
Table 13–3. Color Space Converter Parameter Settings Tab, General Page (Part 1 of 2)
Parameter Value Description
Color Plane
Configuration
Three color planes in sequence, or
Three color planes in parallel
Specifies whether the three color planes are transmitted
in sequence or in parallel.
Input Data Type:
Bits per pixel per
color plane
4–20, Default = 8
Specifies the number of input bits per pixel (per color
plane).
Input Data Type:
Data type
(2)
Unsigned, Signed
Specifies whether the input is unsigned or signed 2’s
complement.
Input Data Type:
Guard bands
(1)
On or Off Enables using a defined input range.
Input Data Type:
Max
(1)
-524288–1048575, Default = 255 Specifies the input range maximum value.
Input Data Type:
Min
(1)
-524288–1048575, Default = 0 Specifies the input range minimum value.
Output Data Type:
Bits per pixel per
color plane
(2)
4–20, Default = 8
Choose the number of output bits per pixel (per color
plane).
Output Data Type:
Data type
Unsigned, Signed
Specify whether the output is unsigned or signed 2’s
complement.
Output Data Type:
Guard bands
(1)
On or Off Turn on to enable a defined output range.
Output Data Type:
Max
(1)
-524288–1048575, Default = 255 Specify the output range maximum value.
Output Data Type:
Min
(1)
-524288–1048575, Default = 0 Specify the output range minimum value.
Move binary point
right
(2)
–16 to +16, Default = 0 Specify the number of places to move the binary point.
Remove fraction
bits by
Round values - Half up,
Round values - Half even,
Truncate values to integer
Choose the method of discarding fraction bits resulting
from the calculation.