Altera Video and Image Processing Suite User Manual
Page 240
Signal
Direction
Description
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.
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 18-4: Alpha Signals for Switch IP Core
The table below lists the signals that are available only when you turn Enable alpha channel in the Switch
parameter editor.
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.
alpha_out_N_data
Output
alpha_out
port Avalon-ST
data
bus. This bus enables the
transfer of pixel data out of the IP core.
alpha_out_N_endofpacket
Output
alpha_out
port Avalon-ST
endofpacket
signal. This
signal marks the end of an Avalon-ST packet.
18-4
Video Switching Signals
UG-VIPSUITE
2015.05.04
Altera Corporation
Video Switching IP Cores