Fir ii ip core functional description, Fir ii ip core interfaces and signals, Fir ii ip core functional description -1 – Altera FIR Compiler II MegaCore Function User Manual
Page 34: Fir ii ip core interfaces and signals -1
FIR II IP Core Functional Description
4
2014.12.15
UG-01072
The FIR II IP core generates the Avalon-ST register transfer level (RTL) wrapper.
Figure 4-1: High Level Block Diagram of FIR II IP core with Avalon-ST Interface
FIR
Filter
xln_v
bankln_0[]
xln_(n-1)[]
xOut_v
xOut_c
xOut_0[]
xOut_(m-1)[]
ast_sink_valid
ast_sink_data[]
ast_sink_sop
ast_sink_eop
ast_sink_error
ast_source_valid
ast_source_data[]
ast_source_sop
ast_source_eop
ast_source_error
ast_source_channel
Controller
ast_sink_ready
ast_source_ready
FIR Compiler II MegaCore Function
Sink
Source
control signals
control signals
control signals
xln_0[]
bankln_(n-1)[]
FIR II IP Core Interfaces and Signals
The IP core uses an interface controller for the Avalon-ST wrapper that handles the flow control
mechanism. The IP core communicates control signals between the sink interface, FIR filter, and source
interface via the controller. When designing a datapath that includes the FIR II IP core, you might not
need backpressure if you know the downstream components can always receive data. You might achieve a
©
2015 Altera Corporation. All rights reserved. ALTERA, ARRIA, CYCLONE, ENPIRION, MAX, MEGACORE, NIOS, QUARTUS and STRATIX words and logos are
trademarks of Altera Corporation and registered in the U.S. Patent and Trademark Office and in other countries. All other words and logos identified as
trademarks or service marks are the property of their respective holders as described at
www.altera.com/common/legal.html
. Altera warrants performance
of its semiconductor products to current specifications in accordance with Altera's standard warranty, but reserves the right to make changes to any
products and services at any time without notice. Altera assumes no responsibility or liability arising out of the application or use of any information,
product, or service described herein except as expressly agreed to in writing by Altera. Altera customers are advised to obtain the latest version of device
specifications before relying on any published information and before placing orders for products or services.
www.altera.com
101 Innovation Drive, San Jose, CA 95134