See
(Xilinx Answer 35743) for DRC error:
Error Messages :
BIVB Error Unsupported IOStandard in bank 1. For example, port mcb1_dram_ck (IOStd = DIFF_SSTL18_II) (IOStd = DIFF_SSTEL18_II) at site J17, M21.mcb1_dram_dqs
BIVB Error Unsupported IOStandard in bank 3. For example, port mcb3_dram_ck (IOStd = DIFF_SSTL18_II) (IOStd = DIFF_SSTEL18_II) at site F2, L3.mcb3_dram_dqs
See
(Xilinx Answer 36372) for DRC error:
"DCI Cascade 25{I/O Bank 25, I/O Bank 26} has multiple DCI I/O standards in a "Split" termination type. Only one DCI I/O standard is allowed in a cascade. The following DCI I/O standards were found: 1. "SSTL15_T_DCI": c0_ddr3_dq[0] c0_ddr3_dq[1] 2. "DIFF_SSTL15_T_DCI": c0_ddr3_dqs_p[0] c0_ddr3_dqs_n[0] c0_ddr3_dqs_p[1] c0_ddr3_dqs_n[1] c0_ddr3_dqs_p[2]"
See
(Xilinx Answer 35277) for DRC eror:
Regional clock terminal CLK_CC_AJ37 loced to site AJ37. There is no site for BUFR BUFR_3 reachable from AJ37
See
(Xilinx Answer 33152)for DRC error:
DCM #1 clocking_I_clocks/CLKIN_IBUFG_INSTat F13 needs to be on the same edge as clocking_I_clocks/DCM_SP_INST @ DCM_X1Y3
F13 is adjacent to the DCM.
See
(Xilinx Answer 35155) for DRC error:
"IOCNT #1 Fatal Design has more IOs (683) than placeable pins on the package (675)"
See
(Xilinx Answer 31852)for DRC error:
"One or more Vr sites in bank I/O Bank occupied. Some terminals in this bank, for example terminals at sites need Vr"
See
(Xilinx Answer 36814) for DRC error
DCM and BUFG connectivity -
DCM DCM_SP_INST placed at DCM_X1Y0 connects to BUFG CLK0_BUFG_INST placed at BUFGMUX_X1Y10. For correct operation both of them should be placed on the same edge.
Related Vios:
See
(Xilinx Answer 35153) for DRC error:
"Conflicting Vcc voltages in bank I/O Bank 13. For example, the following two terminals locked to this bank have conflicting Vccs. Signal_X of IOStandard LVCMOS33 Vcc 3.3000 & Signal_Y of IOStandard LVCMOS25 Vcc 2.5000"
See
(Xilinx Answer 31716) for DRC error:
"I/Os placed on prohibited sites"
See
(Xilinx Answer 32471) for DRC error:
idelayctrl locked to bank 17 with no iodelay. sbuf_dq[33] at pin AE38 and others drive iodelays