User's Manual

4.2.8 QDR2 SRAM
Up to 4 Mbytes of QDR2 SRAM per bank.
The memory is available as 4 independent banks.
The QDR2 memory runs at 250MHz.
Each bank is fully independent with separate address, control and data busses and arranged as
follows:
Figure 3: FPGA connections to Bank1 of QDRII
The devices used are Samsung K7R321884M. Alternative part numbers, fully compatible can
be fitted depending on availability at time of order.
User Manual SMT348 Page 14 of 29 Last Edited: 29/02/2008 17:52:00