AR #33356 - Spartan-6 FPGA MCB - X4 memory components are not supported until IDS 11.4 (MIG 3.3)

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Spartan-6 FPGA MCB - X4 memory components are not supported until IDS 11.4 (MIG 3.3)

AR#	33356
Part	IP-MIG-DDR2 SDRAM
Last Modified	2009-09-04 00:00:00.0
Status	Active
Keywords	MCB, x4, memory, component, device, calibration

Description

Keywords: MCB, x4, memory, component, device, calibration

The Spartan-6 FPGA MCB will not support x4 memory components until MIG 3.3 which will be released in IDS 11.4.

Solution

IDS 11.3 (MIG 3.2) cannot support x4 memories because of incorrect programming of the IOIs associated with the MCB in the x4 configuration. IDS 11.4 (MIG 3.3) will properly program the IOIs for a x4 memory interface and so will be the first release that supports x4 memories.