Spartan-6 FPGA MCB - Port 3 is not supported in read mode when all 6 ports are configured

AR#	33357	Search For Another Answer
Topic	IP-MIG-DDR2 SDRAM
Last Updated	09/04/2009
Status	Active

Description

Keywords: MCB, port, Spartan-6, P3, read, write

When using the MCB in the "2 x 32-bit bidirectional and 4 x 32-bit unidirectional" port configuration, port 3 (P3) can only be used in write mode. There is no support for P3 read mode.

Solution

This will be resolved in IDS 11.4 (MIG 3.3). Until this time, port 3 must be used as a write-only port when using the "2 x 32-bit bidirectional and 4 x 32-bit unidirectional" port configuration.