User guide

System Generator for DSP User Guide www.xilinx.com 315
UG640 (v 12.2) July 23, 2010
Supporting New Boards through JTAG Hardware Co-Simulation
Once you have determined which devices are in the Boundary Scan Chain, you must
determine the instruction register lengths for each device. The table below specifies the
instruction register lengths for various Xilinx families. You may use the auto detection
capability of SBDBuilder to determine the instruction register lengths. If this utility does
not work, you may use the following table to find the instruction register lengths for a
particular part family.
Family IR Length
System_ACE
™-CF 8
Spartan®-3, 3E, 3A, 3AN, 3A DSP 6
Spartan-6 LX, LXT 6
Virtex®-4 LX, SX 10
Virtex®-4 FX 12, 20 10
Virtex®-4 FX 40, 60, 100, 140 14
Virtex®-5 LX, LXT, SXT 10
Virtex®-5 FX 30T, 70T 10
Virtex®-5 FX 100T, 130T, 200T 14
Virtex®-6 LX, LXT 10
Platform Flash XCFxxS 8
Platform Flash XCFxxP 16