Altera Video and Image Processing Suite User Manual

Page 204

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Parameter

Value

Description

Base address of frame buffers

Any 32-bit value,

Default = 0×00000000

Select a hexadecimal address of the frame

buffers in external memory when buffering is

used.
The number of frame buffers and the total

memory required at the specified base

address is displayed under the base address.

Align read/write bursts with

burst boundaries

On or Off

Turn on to avoid initiating read and write

bursts at a position that would cause the

crossing of a memory row boundary.

Table 14-3: Frame Buffer II Parameter Settings

Parameter

Value

Description

Maximum frame width 32–4096,

Default =

4096

Specify the maximum frame width in pixels.

Maximum frame

height

32–4096,

Default =

2160

Specify the maximum progressive frame height in pixels.

Bits per pixel per color

plane

4–20, Default

= 8

Select the number of bits per pixel (per color plane).

Number of color planes 1–4, Default

= 3

Select the number of color planes that are sent in sequence.

Color planes

transmitted in parallel

On or Off

• Turn on to transmit color planes in parallel.

• Turn off to transmit color planes in series.

Pixels in parallel

1, 2, or 4

Specify the number of pixels transmitted or received in parallel.

Interlace support

On or Off

Turn on to support consistent dropping and repeating of fields in

an interlaced video stream.
Note: Do not turn on this parameter to double-buffer an

interlaced input stream on a field-by-field basis.

Use separate clocks for

the Avalon-MM

master(s) 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(s)

local ports width

16-512,

Default = 256

Specify the width of the Avalon-MM ports used to access

external memory.

Write FIFO depth

16–1024,

Default = 64

Select the FIFO depth of the write-only Avalon-MM interface.

UG-VIPSUITE

2015.05.04

Frame Buffer Parameter Settings

14-7

Frame Buffer IP Cores

Altera Corporation

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