Altera Video and Image Processing Suite Instrukcja Użytkownika Strona 117

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Signal Direction Description
din_N_valid Input din_N port Avalon-ST valid signal. This signal identifies
the cycles when the port must input data.
dout_N_data Output dout port Avalon-ST data bus. This bus enables the
transfer of pixel data out of the IP core.
dout_N_endofpacket Output dout_N port Avalon-ST endofpacket signal. This signal
marks the end of an Avalon-ST packet.
dout_N_ready Input dout_N port Avalon-ST ready signal. The downstream
device asserts this signal when it is able to receive data.
dout_N_startofpacket Output dout_N port Avalon-ST startofpacket signal. This signal
marks the start of an Avalon-ST packet.
dout_N_valid Output dout_N port Avalon-ST valid signal. The IP core asserts
this signal when it produces data.
Table 6-4: Alpha Signals for Alpha Blending Mixer IP Core
The table below lists the signals that are available only when you turn on Alpha blending in the Alpha Blending
Mixer parameter editor. These signals that are available only for Alpha Blending Mixer IP core.
Signal Direction Description
alpha_in_N_data Input alpha_in_N port Avalon-ST data bus. This bus enables
the transfer of pixel data into the IP core.
alpha_in_N_endofpacket Input alpha_in_N port Avalon-ST endofpacket signal. This
signal marks the end of an Avalon-ST packet.
alpha_in_N_ready Output alpha_in_N port Avalon-ST ready signal. The IP core
asserts this signal when it is able to receive data.
alpha_in_N_startofpacket Input alpha_in_N port Avalon-ST startofpacket signal. This
signal marks the start of an Avalon-ST packet.
alpha_in_N_valid Input alpha_in_N port Avalon-ST valid signal. This signal
identifies the cycles when the port must insert data.
Table 6-5: Mixer II Signals
The table below lists the signals for Mixer II 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_address Input control slave port Avalon-MM address bus. This bus
specifies a word offset into the slave address space.
6-6
Video Mixing Signals
UG-VIPSUITE
2015.05.04
Altera Corporation
Video Mixing IP Cores
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