Video Clipping IP Cores

8-2

Video Clipping Parameter Settings

UG-VIPSUITE

2015.01.23

Parameter

Value

Description

Number of color planes in

1–3, Default = 1

Select the number of color planes in parallel.

parallel

Include Avalon-MM interface

On or Off

Turn on if you want to specify clipping offsets

using the Avalon-MM interface.

Clipping method

•

Offsets

Specify the clipping area as offsets from the

•

Rectangle

edge of the input area or as a fixed rectangle.

Left offset

Positive integer,

Specify the x coordinate for the left edge of

Default = 10

the clipping rectangle. 0 is the left edge of the

input area.

Note: The left and right offset values

must be less than or equal to the

input image width.

Right offset

Positive integer,

Specify the x coordinate for the right edge of

Default = 10

the clipping rectangle. 0 is the right edge of

the input area.

Note: The left and right offset values

must be less than or equal to the

input image width.

Width

Positive integer,

Specify the width of the clipping rectangle.

Default = 10

Top offset

Positive integer,

Specify the y coordinate for the top edge of

Default = 10

the clipping rectangle. 0 is the top edge of the

input area.

Note: The top and bottom offset values

must be less than or equal to the

input image height.

Bottom offset

Positive integer,

Specify the y coordinate for the bottom edge

Default = 10

of the clipping rectangle. 0 is the bottom edge

of the input area.

Note: The top and bottom offset values

must be less than or equal to the

input image height.

Height

Positive integer,

Specify the height of the clipping rectangle.

Default = 10

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Video Clipping IP Cores

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Video Clipping Parameter Settings

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2015.01.23

Table 8-2: Clipper II Parameter Settings

Parameter

Value

Description

Maximum input frame width

32–4096, Default =

Specify the maximum frame width of the

1920

clipping rectangle for the input field (progres

sive or interlaced).

Maximum input frame height

32–4096, Default =

Specify the maximum height of the clipping

1080

rectangle for the input field (progressive or

interlaced).

Bits per symbol

4–20, Default = 10

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 over one data connection. The meaning

of this value depends on whether the color

planes are in parallel or serial. For example, a

value of 3 when the color planes are in serial

would mean R'G'B' R'G'B' R'G'B'.

Number of pixels in parallel

1, 2, 4

Select the number of color planes in parallel.

Color planes transmitted in

On or Off

Select whether to send the color planes in

parallel

parallel or serial. If you turn on this

parameter, and set the number of color

planes to 3, the IP core sends the R’G’B’s with

every beat of data.

Enable runtime control of

On or Off

Turn on if you want to specify clipping offsets

clipping parameters

using the Avalon-MM interface.

Clipping method

•

OFFSETS

Specify the clipping area as offsets from the

•

RECTANGLE

edge of the input area or as a fixed rectangle.

Left offset

0–1920, Default = 10

Specify the x coordinate for the left edge of

the clipping rectangle. 0 is the left edge of the

input area.

Note: The left and right offset values

must be less than or equal to the

input image width.

Top offset

0–1080, Default = 10

Specify the y coordinate for the top edge of

the clipping rectangle. 0 is the top edge of the

input area.

Note: The top and bottom offset values

must be less than or equal to the

input image height.

Video Clipping IP Cores

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8-4

Video Clipping Signals

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2015.01.23

Parameter

Value

Description

Right offset

0–1080, Default = 10

Specify the x coordinate for the right edge of

the clipping rectangle. 0 is the right edge of

the input area.

Note: The left and right offset values

must be less than or equal to the

input image width.

Bottom offset

0–1080, Default = 10

Specify the y coordinate for the bottom edge

of the clipping rectangle. 0 is the bottom edge

of the input area.

Note: The top and bottom offset values

must be less than or equal to the

input image height.

Width

0–1920, Default = 10

Specify the width of the clipping rectangle.

Height

0–1080, Default = 10

Specify the height of the clipping rectangle.

Signal

Directio

Description

n

•

clock (Clipper)

Input

The main system clock. The IP core operates on the

• main_clock (Clipper II)

rising edge of this signal.

•

reset (Clipper)

Input

The IP core asynchronously resets when this signal is

• main_reset (Clipper II)

high. You must deassert this signal synchronously to the

rising edge of the clock signal.

din_data

Input

din port Avalon-ST data bus. This bus enables the

transfer of pixel data into the IP core.

din_endofpacket

Input

din port Avalon-ST endofpacket signal. This signal

marks the end of an Avalon-ST packet.

din_ready

Output

din port Avalon-ST ready signal. This signal indicates

when the IP core is ready to receive data.

din_startofpacket

Input

din port Avalon-ST startofpacket signal. This signal

marks the start of an Avalon-ST packet.

din_valid

Input

din port Avalon-ST valid signal. This signal identifies

the cycles when the port must enter data.

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Video Clipping IP Cores

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Video Clipping Signals

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2015.01.23

Signal

Directio

Description

n

dout_data

Output

dout port Avalon-ST data bus. This bus enables the

transfer of pixel data out of the IP core.

dout_endofpacket

Output

dout port Avalon-ST endofpacket signal. This signal

marks the end of an Avalon-ST packet.

dout_ready

Input

dout port Avalon-ST ready signal. The downstream

device asserts this signal when it is able to receive data.

dout_startofpacket

Output

dout port Avalon-ST startofpacket signal. This signal

marks the start of an Avalon-ST packet.

dout_valid

Output

dout port Avalon-ST valid signal. The IP core asserts

this signal when it produces data.

Table 8-4: Signals for Clipper IP Core

These signals are present only if you turn on Include Avalon-MM interface in the Clipper parameter editor.

Signal

Directio

Description

n

control_av_address

Input

control slave port Avalon-MM address bus. This bus

specifies a word offset into the slave address space.

control_av_chipselect

Input

control slave port Avalon-MM chipselect signal. The

control port ignores all other signals unless you assert

this signal.

control_av_readdata

Output

control slave port Avalon-MM readdata bus. The IP

core uses these output lines for read transfers.

control_av_waitrequest

Output

control slave port Avalon-MM waitrequest signal.

control_av_write

Input

control slave port Avalon-MM write signal. When you

assert this signal, the control port accepts new data from

the writedata bus.

control_av_writedata

Input

control slave port Avalon-MM writedata bus. The IP

core uses these input lines for write transfers.

Signal

Directio

Description

n

control_address

Input

control slave port Avalon-MM address bus. This bus

specifies a word offset into the slave address space.

Video Clipping IP Cores

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