Altera Video and Image Processing Suite Uživatelský manuál Strana 209

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Signal Direction Description
mem_reset Input mem_master port reset signal. The interface asynchro‐
nously resets when this signal is 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.
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.
mem_master_rd_address Output mem_master_rd port Avalon-MM address bus. This bus
specifies a byte address in the Avalon-MM address space.
mem_master_rd_burstcount Output mem_master_rd port Avalon-MM burstcount signal.
This signal specifies the number of transfers in each burst.
mem_master_rd_read Output mem_master_rd port Avalon-MM read signal. The IP core
asserts this signal to indicate read requests from the
master to the system interconnect fabric.
mem_master_rd_readdata Input mem_master_rd port Avalon-MM readdata bus. These
input lines carry data for read transfers.
mem_master_rd_readdatavalid Input read_master port Avalon-MM readdatavalid signal.
The system interconnect fabric asserts this signal when the
requested read data has arrived.
mem_master_rd_waitrequest Input mem_master_rd port Avalon-MM waitrequest signal.
The system interconnect fabric asserts this signal to cause
the master port to wait.
14-12
Frame Buffer Signals
UG-VIPSUITE
2015.05.04
Altera Corporation
Frame Buffer IP Cores
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