Altera Video and Image Processing Suite Manual de usuario Pagina 208

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Table 14-5: Reader Control Interface Signals for Frame Buffer IP Core
These signals are present only if you turned on the control interface for the reader.
Signal Direction Description
reader_control_av_
chipselect
Input reader control slave port Avalon-MM chipselect
signal. The reader control port ignores all other signals
unless you assert this signal.
reader_control_av_readdata Output reader control slave port Avalon-MM readdata bus.
The IP core uses these output lines for read transfers.
reader_control_av_write Input reader control slave port Avalon-MM write signal.
When you assert this signal, the reader control port
accepts new data from the writedata bus.
reader_control_av_writedata Input reader controlslave port Avalon-MM writedata bus.
The IP core uses these input lines for write transfers.
Table 14-6: Writer Control Interface Signals for Frame Buffer IP Core
These signals are present only if you enabled the control interface for the writer.
Signal Direction Description
writer_control_av_
chipselect
Input writer_control slave port Avalon-MM chipselect
signal. The writer_control port ignores all other signals
unless you assert this signal.
writer_control_av_readdata Output writer_control slave port Avalon-MM readdata bus.
The IP core uses these output lines for read transfers.
writer_control_av_write Input writer_controlslave port Avalon-MM write signal.
When you assert this signal, the ker_writer_control
port accepts new data from the writedata bus.
writer_control_av_writedata Input writer_controlslave port Avalon-MM writedata bus.
The IP core uses these input lines for write transfers.
Table 14-7: Signals for Frame Buffer II IP Core
The table lists the input and output signals for the Frame Buffer IP II cores.
Signal Direction Description
main_clock Input The main system clock. The IP core operates on the rising
edge of this signal.
main_reset Input The IP core asynchronously resets when this signal is high.
You must deassert this signal synchronously to the rising
edge of the clock signal.
mem_clock Input mem_master port clocksignal. The interface operates on
the rising edge of the clock signal.
UG-VIPSUITE
2015.05.04
Frame Buffer Signals
14-11
Frame Buffer IP Cores
Altera Corporation
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