Joint Test Action Group (JTAG) Bridge IP Core

Efficient Debugging of On-Board Issues With Direct Memory & Register Access

Scheduled Downtime: Our website and IP Catalog in Lattice Radiant and Diamond will be offline for maintenance on Friday, Feb 13, 5:00 PM – 9:00 PM PT. Please plan your downloads accordingly.

The Lattice Semiconductor JTAG Bridge IP provides an efficient solution for debugging on-board issues by allowing you to access memory and peripheral registers directly using this IP, without involving the processor. It converts Joint Test Action Group (JTAG) Test Access Port (TAP) signals into Advanced eXtensible Interface 4 (AXI4) transactions, enabling you to perform read and write operations with byte, half-word, or word lengths.

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

Features

  • Supports AXI4 Interface.
  • Supports configurable address width
  • Supports data mask and data size
  • Supports word-only access, or combination of word, half-word, and byte operations

Block Diagram

Ordering Information

The JTAG Bridge IP is provided at no additional cost with the Lattice Propel design environment. The IP can be fully evaluated in hardware without requiring an IP license string.

Documentation

Quick Reference
TITLE NUMBER VERSION DATE FORMAT SIZE
Select All
JTAG Bridge IP Module User Guide - Lattice Propel Builder
FPGA-IPUG-02288 1.0 6/26/2025 PDF 390.6 KB

*By clicking on the "Notify Me of Changes" button, you agree to receive notifications on changes to the document(s) you selected.