Xilinx virtex-5 fpga

UG190 (v5.0) June 19, 2009 www.xilinx.com Virtex-5 FPGA User Guide
12/11/07 3.2 Chapter 1: Revised description in “Clock Gating for Power Savings,” page 26. Added the
XC5VLX20T, XC5VLX155, and XC5VLX155T devices to Table 1-5.
Chapter 2: Added the XC5VLX20T, XC5VLX155, and XC5VLX155T devices to Table 2-1.
Chapter 3: Revised “Clock Network Deskew,” page 93. Removed note 2 and revised
descriptions of CLKFBOUT and DEN in Table 3-3, page 96. Revised allowed value of
CLKOUT[0:5]_PHASE and CLKFBOUT_MULT description in Table 3-4, page 98.
Revised Figure 3-13 and Figure 3-14 including waveforms.
Chapter 5: Added the XC5VLX20T, XC5VLX155, and XC5VLX155T devices to Table 5-2.
Chapter 6: Clarified discussion of cascading across CMT tiles in “DCI Cascading.”
Changed the split termination to V
TT
= 0.9V in Figure 6-84, page 292.
Chapter 7: Added to the descriptions of the “HIGH_PERFORMANCE_MODE
Attribute,” and the “SIGNAL_PATTERN Attribute,” page 330 including Table 7-10.
Revised description in “Instantiating IDELAYCTRL Without LOC Constraints,” page
340.
Chapter 8: Complete rewrite of the chapter. Many changes to descriptions, tables, and
figures.
02/05/08 3.3 Chapter 1: Updated discussion under “I/O Clock Buffer - BUFIO” on page 41.
Chapter 3: Revised LOCKED description in Table 3-3, page 96. Revised discussion under
“Detailed VCO and Output Counter Waveforms,” page 103.
Chapter 5: Updated description of Figure 5-17.
Chapter 7: Updated description under “Clock Input - C” on page 327. Updated default
value to TRUE for HIGH_PERFORMANCE_MODE in Table 7-10, page 329.
Chapter 8: Revised TRISTATE_WIDTH in Table 8-7, page 374. Updated discussion
under “TRISTATE_WIDTH Attribute” and added section on “OSERDES Clocking
Methods,” page 375.
03/31/08 4.0 Added the FXT platform to Table 1-5, Table 2-1, and Table 5-2.
Revised timing event description under Figure 1-21, page 44.
Revised “Dynamic Reconfiguration,” page 73 to remove adjustment of PHASE_SHIFT.
Added CLKOUT[0:5]_DESKEW_ADJUST to Table 3-4, page 98.
Corrected READ_WIDTH_B = 9 to WRITE_WIDTH_B = 9 in the block RAM usage rules
on page 114.
Revised “High-Speed Clock for Strobe-Based Memory Interfaces - OCLK,” page 357.
Corrected BITSLIP_ENABLE value from string to boolean in “ISERDES_NODELAY
Attributes,” page 358.
04/25/08 4.1 Added the XC5VSX240T to Table 1-5, Table 2-1, and Table 5-2.
Revised Figure 1-21, page 44.
Removed a pad notation from the ODDR output of Figure 2-9.
Removed the BUFG on the output of Figure 2-10.
Updated CLKOUT[0:5]_DESKEW_ADJUST description in Table 3-4, page 98.
Revised equations Equation 3-5 and Equation 3-6.
Updated the notes in Table 4-16, page 145.
Revised description of
“Instantiating IDELAYCTRL with Location (LOC) Constraints,”
page 342.
Date Version Revision