IPS-VIDEO Altera, IPS-VIDEO Datasheet - Page 54

• Manufacturer Part Number: IPS-VIDEO
• Description: MegaCore Suite W/ 17 DSP Video/image Processing Functions
• Manufacturer: Altera
• Type: -r

Specifications of IPS-VIDEO

• Software Application: IP CORE, SUITES
• Supported Families: Arria GX, Cyclone II, HardCopy II, Stratix II
• Core Architecture: FPGA
• Core Sub-architecture: Arria, Cyclone, Stratix
• Rohs Compliant: NA
• Function: Suite of IP Functions for Video and Image Processing
• License: Initial License
• Lead Free Status / RoHS Status: na
• Lead Free Status / RoHS Status: na

3–16
Frame Buffer
Table 3–15. Frame Buffer Parameter Settings (Part 1 of 2)
Video and Image Processing Suite User Guide
Maximum image width
Maximum image height
Bits per pixel per color plane
Number of color planes in sequence
Number of color planes in parallel
Frame dropping
Frame repetition
Drop invalid fields/frames
Run-time control for the writer thread On or Off
Run-time control for the reader
thread
Support for locked frame rate
conversion (1),
Support for interlaced streams
Number of packets buffered per
frame
Maximum packet length
Use separate clocks for the Avalon-
MM master interfaces
External memory port width
Write-only master interface FIFO
depth
Write-only master interface burst
target
(3)
Parameter
(2)
Table 3–15
shows the Frame Buffer parameters.
32–2600,
Default = 640
32–2600,
Default = 480
4–20, Default = 8
1–3
On or Off
On or Off
On or Off
On or Off
On or Off
0–32
10–1024
On or Off
16–1024,
Default = 64
2–256, Default = 32
1–3
On or Off
16–256, Default = 64
Value
Specify the maximum frame width.
Specify the maximum frame height. In general, this value
should be set to the full height of a progressive frame.
However, it can be set to the height of an interlaced field for
double-buffering on a field-by-field basis when the support
for interlaced inputs has been turned off.
Choose the number of bits per pixel (per color plane).
Choose the number of color planes in sequence.
Choose the number of color planes in parallel.
Turn on to allow frame dropping.
Turn on to allow frame repetition.
Turn on to drop image data packets whose length is not
compatible with the dimensions declared in the last control
packet.
Turn on to enable run-time control for the write interfaces.
Turn on to enable run-time control for the read interfaces.
Turn on to synchronize the input and output frame rates
through an Avalon-MM slave interface.
Turn on to support consistent dropping and repeating of
fields in an interlaced video stream. This option should not
be turned on for double-buffering of an interlaced input
stream on a field-by-field basis.
Specify the maximum number of non-image, non-control,
Avalon-ST Video packets that can be buffered with each
frame. Older packets are discarded first in case of an
overflow.
Specify the maximum packet length as a number of
symbols. The minimum value is 10 because this is the size
of an Avalon-ST control packet (header included). Extra
samples are discarded if packets are larger than allowed.
Turn on to add a separate clock signal for the Avalon-MM
master interfaces so that they can run at a different speed
to the Avalon-ST processing. This decouples the memory
speed from the speed of the data path and is sometimes
necessary to reach performance target.
Choose the width of the external memory port.
Choose the FIFO depth of the write-only Avalon-MM
interface.
Choose the burst target for the write-only Avalon-MM
interface.
Description
Chapter 3: Parameter Settings
May 2011 Altera Corporation
Frame Buffer