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Chapter 1
Introduction
This chapter introduces you to the basic concepts of Xilinx JTAG capabilities and Xilinx in-system programmable products. You can use JTAG Programmer to download, read back and verify design configuration data, to perform functional tests on any device, and to probe internal logic states of a Xilinx XC9500, XC9500XL, XC9500XV, Spartan or Virtex design. This chapter contains the following sections:
JTAG Programmer software uses sequences of JTAG instructions to perform the following programming and verification operations. The user need only select the desired operation; the software will execute all required JTAG commands transparently. For a description of JTAG instructions supported by Xilinx devices, see Appendix A.
