Intel® Quartus® Prime Pro Edition User Guide: Debug Tools

ID 683819
Date 10/02/2023

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2.4. Virtual JTAG Interface Intel® FPGA IP

The Virtual JTAG Interface Intel® FPGA IP provides the finest level of granularity for manipulating the JTAG resource. This Intel® FPGA IP allows you to build your own JTAG scan chain by exposing all of the JTAG control signals and configuring your JTAG Instruction Registers (IRs) and JTAG Data Registers (DRs). During runtime, you control the IR/DR chain through a Tcl API, or with System Console. This feature is meant for users who have a thorough understanding of the JTAG interface and want precise control over the number and type of resources used.