Altera Video and Image Processing Suite Instrukcja Użytkownika Pobierz pdf (Strona 116)

Parameter Value Description

Pattern

• Color bars

• Uniform

background

Select the pattern you want to use for the

background test pattern layer.

Uniform values 0-255; Default = 0 (R/

Y); 128 (G/Cb/B/Cr)

When pattern is uniform background, you

can specify the individual R'G'B' or Y' Cb' Cr'

values depending on the currently selected

color space.

Video Mixing Signals

Table 6-3: Alpha Blending Mixer Signals

The table below lists the signals for Alpha Blending Mixer IP core.

Signal Direction Description

reset Input The IP core asynchronously resets when you assert this

signal. You must deassert this signal synchronously to the

rising edge of the clock signal.

clock Input The main system clock. The IP core operates on the rising

edge of this signal.

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_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.

din_N_data Input din_N port Avalon-ST data bus. This bus enables the

transfer of pixel data into the IP core.

din_N_endofpacket Input din_N port Avalon-ST endofpacket signal. This signal

marks the end of an Avalon-ST packet.

din_N_ready Output din_N port Avalon-ST ready signal. The IP core asserts

this signal when it is able to receive data.

din_N_startofpacket Input din_N port Avalon-ST startofpacket signal. This signal

marks the start of an Avalon-ST packet.

UG-VIPSUITE

2015.05.04

Video Mixing Signals

6-5

Video Mixing IP Cores

Altera Corporation

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