Altera Video and Image Processing Suite User Manual

Page 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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