Test pattern generator control registers, Test pattern generator control registers -8 – Altera Video and Image Processing Suite User Manual

Page 250

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Signal

Direction

Description

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.

Test Pattern Generator Control Registers

The width of each register in the Test Pattern Generator control register map is 16 bits. The control data is

read once at the start of each frame and is buffered inside the IP cores, so that the registers can be safely

updated during the processing of a frame or pair of interlaced fields.
After reading the control data, the Test Pattern Generator IP cores produce a control packet that describes

the following image data packet. When the output is interlaced, the control data is processed only before

the first field of a frame, although a control packet is sent before each field.

Table 19-6: Test Pattern Generator Control Register Map

The table below describes the control register map for Test Pattern Generator IP core.

Address

Register

Description

0

Control

Bit 0 of this register is the

Go

bit, all other bits are unused.

Setting this bit to 0 causes the IP core to stop before control

information is read.

1

Status

Bit 0 of this register is the

Status

bit, all other bits are unused.

The IP core sets this address to 0 between frames. The IP core

sets this address to 1 while it is producing data and cannot be

stopped.

2

Output Width

The width of the output frames or fields in pixels.
Note: Value from 32 up to the maximum specified in the

parameter editor.

3

Output Height

The progressive height of the output frames or fields in pixels.
Note: Value from 32 up to the maximum specified in the

parameter editor.

19-8

Test Pattern Generator Control Registers

UG-VIPSUITE

2015.05.04

Altera Corporation

Test Pattern Generator IP Cores

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