Altera Video and Image Processing Suite User Manual
Page 203
Parameter
Value
Description
Support for interlaced streams
On or Off
Turn on to support consistent dropping and
repeating of fields in an interlaced video
stream.
Note: You must not turn on this
parameter for double-buffering of
an interlaced input stream on a
field-by-field basis.
Number of packets buffered per
frame
0–32, Default = 0
Specify the 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.
Note: The Maximum packet length
parameter is disabled when you
specify the number of packets
buffered per frame to 0.
Maximum packet length
10–1024, Default = 10 Select 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.
Use separate clocks for the
Avalon-MM master interfaces
On or Off
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.
Avalon-MM master ports width 16–256, Default = 64
Specify the width of the Avalon-MM ports
used to access external memory.
Write-only master interface
FIFO depth
16–1024, Default = 64 Select the FIFO depth of the write-only
Avalon-MM interface.
Write-only master interface
burst target
2–256, Default = 32
Select the burst target for the write-only
Avalon-MM interface.
Read-only master interface FIFO
depth
16–1024, Default = 64 Select the FIFO depth of the read-only
Avalon-MM interface.
Read-only master interface burst
target
2–256, Default = 32
Select the burst target for the read-only
Avalon-MM interface.
14-6
Frame Buffer Parameter Settings
UG-VIPSUITE
2015.05.04
Altera Corporation
Frame Buffer IP Cores