AXI4 Multi Port Bridge for Memory Controller IP Core

Connects Multiple External Managers to a Single Memory Controller

The AXI4 Multi Port Bridge for Memory Controller (MPMC) IP connects multiple external managers to a single memory controller. This IP runs only on AXI4 and supports separate clock domains between each external managers and the subordinate.

Proper Clock Domain Crossing (CDC) Mechanism – Proper clock domain crossing (CDC) mechanism is in place to ensure proper clock domain crossing between the SI and MI blocks. There are no signals crossing between each SI block.

Internal Reset Synchronous Deassertion (RSD) Block – All resets have the deassertion edge synchronized to the respective clock edge with an internal reset synchronous deassertion (RSD) block.

Features

  • Each subordinate interface (SI) block runs on its own clock/reset domain
  • The manager interface (MI) block runs on its own clock/reset domain
  • Supports 2 to 4 external managers and 1 external subordinate
  • Performs width conversion (upsizing) only
  • Supports the round robin arbitration scheme

Jump to

Block Diagram

Resource Utilization

Avant Family (LAV-AT-E70-3LFG1156I)
Number of External Managers CDC Enabled Virtual I/O Slices LUTs Registers EBRs
2 Yes 1184 4559 5781 4129 18
3 1420 6517 8389 6091 27
4 1656 8615 10734 8001 36
2 No 1184 4541 5547 4337 18
3 1420 6531 8179 6413 27
4 1656 8418 10484 8457 36
Nexus Family (LFCPNX-100-9LFG672I)
Number of External Managers CDC Enabled Virtual I/O Slices LUTs Registers EBRs
2 Yes 1184 7753 5944 4055 34
3 1420 11169 8662 5972 51
4 1656 14146 11084 7882 68
2 No 1184 7867 5771 4271 34
3 1420 11357 8410 6296 51
4 1656 14418 10782 8314 68

Ordering Information

The AXI4 MPMC IP is provided at no additional cost with the Lattice Radiant software.

Documentation

Quick Reference
TITLE NUMBER VERSION DATE FORMAT SIZE
Select All
AXI4 Multi Port Bridge for Memory Controller Module - User Guide
FPGA-IPUG-02246 1.0 12/5/2023 PDF 1.6 MB

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