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  3. AR# 60047: MIG UltraScale QDRII+ - incorrect parameter values for 36-bit designs using x16 components

AR# 60047

MIG UltraScale QDRII+ - incorrect parameter values for 36-bit designs using x16 components

Description

Version Found: v5.0
Version Resolved: See (Xilinx Answer 58435)

For MIG UltraScale QDRII+ 36-bit designs using x18 components it is possible that the clk_from_ext_upp and clk_from_ext_low parameter values will be incorrect.

This can result in the following CRITICAL WARNING being received during implementation:
CRITICAL WARNING: [Route 35-54] Net: u_my_mig/inst/u_qdriip_phy/phycal/phy/byteWrap[2].u_xiphy_byte_wrapper/I_CONTROL[0].GEN_I_CONTROL.u_xiphy_control/clk_to_ext_south_low is not completely routed. 

Solution

To resolve this the following changes to the clk_from_ext_upp and clk_from_ext_low parameters should be made inside ./sources_1/ip/<core_name>/rtl/map/phy_clk_map.vh:

,.clk_from_ext_low (
  {
  1'b1,
  1'b1,
  1'b1,
  1'b1,
  1'b1,
  1'b1,
  1'b1,
  1'b1,
  clk_to ext_north_low[2]
  1'b1,
  1'b1,
  clk_to_ext_south_low[1]
}
)
,.clk_from_ext_upp (
  {
  1'b1,
  1'b1,
  1'b1,
  1'b1,
  1'b1,
  1'b1,
  1'b1,
  1'b1,
  clk_to ext_north_upp[2]
  1'b1,
  1'b1,
  clk_to_ext_south_upp[1]
}
)

Revision History
04/16/2014 - Initial release

Linked Answer Records

Master Answer Records

Answer Number Answer Title Version Found Version Resolved
58435 DDR4, DDR3, QDRIV, QDRII+, RLDRAM3, LPDDR3 UltraScale and UltraScale+ - IP Release Notes and Known Issues N/A N/A
AR# 60047
Date 04/17/2014
Status Active
Type Known Issues
Devices
  • Kintex UltraScale
  • Virtex UltraScale
IP
  • MIG UltraScale