AXI4 Interconnect Module

A Parameterized Soft IP Offering High-Performance, Low-Latency AMBA 3 AHB-Lite Fabric

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The Lattice Semiconductor AXI4 Interconnect is a flexible, versatile, and easy-to-use IP with high-performance and low latency interconnect fabric for AMBA 4 AXI/AXI-lite based systems. Any AXI4/AXI4-Lite compliant IP can be easily plug-and-play into the system for smooth integration. It supports different data width conversion and clock-domain-crossing. Furthermore, it supports multiple Managers with multiple memory-mapped Subordinates.

Resource Utilization details are available in the IP Core User Guide.

Features

  • Compliance with AMBA AXI4 and AXI4-Lite Protocol
  • Fully parameterized design
  • Connection of multiple AXI4 Managers to multiple memory-mapped AXI4 Subordinates
  • Support up to 32 AXI4 or AXI4-Lite Managers and 32 AXI4 or AXI4-Lite Subordinates
  • Heterogeneous support - AXI4 and AXI4-Lite in single interconnect

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Block Diagram

AXI4 Interconnect Module Block DiagramExpand Image

Resource Utilization

Using Lattice Radiant Software 2022.1 with Synplify Pro (S-2021.09LR-SP2) as the Synthesis Tool. The different number of Manager and Subordinate combinations are shown, as well as enabling of the CDC blocks or ID ordering function. The other attributes use the default configuration in all configurations used.

Lattice Avant Devices
Resource Utilization Using LAV-AT-500E-3LFG1156I
Configuration Clock Fmax (MHz) Registers LUTs EBRs
External AXI4 Managers = 1, External AXI4 Subordinates = 2
Other default configurations 		332.557
 2320
 4534
 0
External AXI4 Managers = 1, External AXI4 Subordinates = 2
All External Managers and Subordinates = CDC enabled
Other default configurations 		350.000
 5109
 6906
 4
External AXI4 Managers = 1, External AXI4 Subordinates = 2
All External Managers and Subordinates = ID ordering enabled
Other default configurations 		183.251
 2862
 6637
 0
External AXI4 Managers = 2, External AXI4 Subordinates = 1
Other default configurations 		350.00
 2135
 4107
 0
External AXI4 Managers = 2, External AXI4 Subordinates = 1
All External Managers and Subordinates = CDC enabled
Other default configurations 		340.948
 4875
 6068
 2
External AXI4 Managers = 2, External AXI4 Subordinates = 1
All External Managers and Subordinates = ID ordering enabled
Other default configurations 		169.837
 3662
 8800
 0
External AXI4 Managers = 2, External AXI4 Subordinates = 2
Other default configurations 		346.500
 3290
 6246
 0
External AXI4 Managers = 2, External AXI4 Subordinates = 2
All External Managers and Subordinates = CDC enabled
Other default configurations 		338.983
 6861
 8953
 4
External AXI4 Managers = 2, External AXI4 Subordinates = 2
All External Managers and Subordinates = ID ordering enabled
Other default configurations 		149.365
 4381
 10704
 0
External AXI4 Managers = 2, External AXI4 Subordinates = 5
Other default configurations 		251.762
 6523
 12104
 0
External AXI4 Managers = 2, External AXI4 Subordinates = 5
All External Managers and Subordinates = CDC enabled
Other default configurations 		199.720
 12917
 17762
 10
External AXI4 Managers = 2, External AXI4 Subordinates = 5
All External Managers and Subordinates = ID ordering enabled
Other default configurations 		112.880
 7724
 183331
 0
Lattice CertusPro-NX Devices
Resource Utilization Using LFCPNX-100-9LFG672C
Configuration Clock Fmax (MHz) Registers LUTs EBRs
External AXI4 Managers = 1, External AXI4 Subordinates = 2
Other default configurations 		200.000 2295
 4860
 0
External AXI4 Managers = 1, External AXI4 Subordinates = 2
All External Managers and Subordinates = CDC enabled
Other default configurations 		161.238
 5021
 7265
 8
External AXI4 Managers = 1, External AXI4 Subordinates = 2
All External Managers and Subordinates = ID ordering enabled
Other default configurations 		113.097
 2838
 7095
 0
External AXI4 Managers = 2, External AXI4 Subordinates = 1
Other default configurations 		183.790
 2117
 4284
 0
External AXI4 Managers = 2, External AXI4 Subordinates = 1
All External Managers and Subordinates = CDC enabled
Other default configurations 		195.755
 4829
 6326
 4
External AXI4 Managers = 2, External AXI4 Subordinates = 1
All External Managers and Subordinates = ID ordering enabled
Other default configurations 		110.387
 3131
 7707
 0
External AXI4 Managers = 2, External AXI4 Subordinates = 2
Other default configurations 		167.056
 3219
 6644
 0
External AXI4 Managers = 2, External AXI4 Subordinates = 2
All External Managers and Subordinates = CDC enabled
Other default configurations 		137.798
 6850
 9535
 8
External AXI4 Managers = 2, External AXI4 Subordinates = 2
All External Managers and Subordinates = ID ordering enabled
Other default configurations 		104.559
 4334
 11099
 0
External AXI4 Managers = 2, External AXI4 Subordinates = 5
Other default configurations 		159.363
 6506
 13181
 0
External AXI4 Managers = 2, External AXI4 Subordinates = 5
All External Managers and Subordinates = CDC enabled
Other default configurations 		140.076
 12900
 19082
 20
External AXI4 Managers = 2, External AXI4 Subordinates = 5
All External Managers and Subordinates = ID ordering enabled
Other default configurations 		89.111
 7684
 19201
 0

Ordering Information

The AXI4 Interconnect IP is provided at no additional cost with Lattice Propel Builder.

Documentation

Quick Reference
Information Resources
TITLE NUMBER VERSION DATE FORMAT SIZE
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AXI4 Interconnect Module User Guide
FPGA-IPUG-02196 1.7 12/20/2024 PDF 837.8 KB
TITLE NUMBER VERSION DATE FORMAT SIZE
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AXI4 Interconnect Module Release Notes
FPGA-RN-02045 1.0 12/20/2024 PDF 212.4 KB

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