Design Advisories for MIG including DDR3, DDR2, DDR, Spartan-6 FPGA MCB, RLDRAMII, QDRII+, QDRII, DDRII cores

AR#	33566	Search For Another Answer
Topic	MIG
Last Updated	01/11/2012
Status	Active

Description

Design Advisory Answer Records are created for issues that are important to designs currently in progress and are selected to be included in the Xilinx Alert Notification System.

Solution

For a list of all current Release Notes and Known Issues for Xilinx Solutions for MIG, please refer to the IP Release Notes Guide (XTP025):
http://www.xilinx.com/support/documentation/ip_documentation/xtp025.pdf

For general design and troubleshooting information on MIG, please refer to the Xilinx MIG Solution Center at: (Xilinx Answer 34243).

7 Series DDR3 MIG
01/10/2012 - (Xilinx Answer 45633) Design Advisory for 7 Series MIG DDR3/DDR2 - Updated pin placement rules for CKE and ODT; existing UCFs must be verified
05/05/2011 - (Xilinx Answer 42036) 7 Series MIG DDR3 - Internal/External Vref Guidelines
05/02/2011 - (Xilinx Answer 41981) MIG 7 Series 1.1 DDR3 SDRAM - Addr/Cntrl pins should be limited to a single bank
04/11/2011 - (Xilinx Answer 40876) MIG 7 Series 1.1 DDR3 SDRAM - MIG allows setting memory frequencies above data sheet specifications
04/11/2001 - OBSOLETE (Xilinx Answer 41351) - MIG 7 Series 1.1 DDR3 SDRAM - CKE and ODT Pin Placement Guidelines

Spartan-6 FPGA MCB 
04/25/2011 - (Xilinx Answer 41822) MIG v3.7 Spartan-6 MCB - Certain User Port Configurations do not work for VHDL designs
04/18/2011 - (Xilinx Answer 41520) Spartan-6 MCB Design Advisory - Removal of VCCINT restrictions to reach maximum DDR3 data rates
11/09/2010 - (Xilinx Answer 36291) MIG, MPMC, Spartan-6 MCB - Memory failures occur on initial configuration. 
06/14/2010 - (Xilinx Answer 35978) MIG Spartan-6 MCB - Last word of read burst fails in hardware - bitstream update required for all MCB designs.
06/14/2010 - (Xilinx Answer 35976) MIG Spartan-6 MCB - Design does not come out of reset and requires power-cycle to regain functionality - SW / IP update required.
06/14/2010 - (Xilinx Answer 35818) Spartan-6 FPGA - Memory Controller Block (MCB) Performance Change for DDR2 and DDR3 interfaces.
02/08/2010 - (Xilinx Answer 34165) MIG v3.3, Spartan-6 FPGA MCB - Incorrect port connection causes Continuous DQS Tuning to behave incorrectly - Manual modification required.
02/08/2010 - (Xilinx Answer 34046) MIG v3.3, Spartan-6 FPGA LPDDR - Calibrated and Un-Calibrated Input Termination features not supported.
02/08/2010 - (Xilinx Answer 34055) MIG v3.3, Spartan-6 FPGA MCB - What are the requirements for the RZQ and ZIO pins?
02/08/2010 - (Xilinx Answer 34137) MIG v3.3, Spartan-6 FPGA LPDDR - Drive strength selected in MIG is not properly set in the output design.
02/08/2010 - (Xilinx Answer 34089) MIG v3.3, Spartan-6 FPGA MCB - Some bits of the MCB address bus (mcbx_dram_addr) may violate the input hold time (tIH) specification of the memory device. 
09/23/2009 - (Xilinx Answer 33358) Spartan-6 FPGA MCB - Data Mask cannot be disabled and the UDM and LDM pins cannot be used as General Purpose I/O (GPIO).

Virtex-6 DDR2/DDR3 MIG
03/9/2010 - (Xilinx Answer 34204) MIG v3.0-3.3, Virtex-6 FPGA DDR3/DDR2 - Read Leveling Stage 2 fails in hardware due to OCB Monitor issue.
02/8/2010 - (Xilinx Answer 33995) MIG 3.3, Virtex-6 FPGA DDR3 - Write Leveling does not succeed and calibration fails due to IDELAYCTRL not being automatically inferred by the software.
02/8/2010 - (Xilinx Answer 34094) MIG v3.3, Virtex-6 FPGA DDR2/DDR3- MMCM CLKFBOUT_MULT_F= 4 not valid, manual modification required

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Revision History 

01/10/2012 - Added Answer Record 45633
05/05/2011 - Updated 7 Series DDR3 MIG to include Answer Record 42036
05/02/2011 - Updated 7 Series DDR3 MIG to include Answer Record 41981
04/18/2011 - Updated Spartan-6 list to include Answer Record 41520
04/11/2011 - Added 7 Series and included Answer Records 40876 and 41351
11/09/2010 - Updated Spartan-6 list to include Answer Record 36291
06/14/2010 - Updated Spartan-6 list to include Answer Records 35978, 35976, and 35818
03/09/2010 - Updated list to include Answer Record 34204
02/08/2009 - Updated list to include Answer Records 34165, 34046, 34055, 34137, 34089, 33995, and 34094
09/28/2009 - Initial Release; added Answer Record 33358