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The
MM-6495D is an 8GB SDRAM VME memory buffer with
six RACE++ ports and a VME64 port for use in
array processing applications with intensive
data streaming requirements.
The
card can be placed at the front or rear end of a
real time DSP system to buffer incoming and
outgoing data. Individual compute nodes can then
receive, process and transfer streaming data at
will, which can greatly reduce total compute
time for the DSP’s and arbitration and overhead
for the host, improving overall system
performance.
The
MM-6495D has two RACE++ ports located on P2 and
a VME64 port on P1. The card also has four
RACE++ ports on the board. Each of these four
ports has an individual memory bank with up to
2GB of SDRAM. Each memory bank can be accessed
simultaneously, but only through its dedicated
RACE++ port.
This
architecture provides that data from the two
independent RACE++ ports on P2 and data from the
VME64 port on P1 can be directly transmitted or
received from any one of four "non-busy" memory
banks to achieve an aggregate transfer rate of
up to 612MB/s.
The
card is offered in a commercial version -the
MM-6495D, a semi-ruggedized version – the
MM-6495DR (Mercury Level 1), and a rugged
extended temperature version - the MM-6495DT
(Mercury Level 2) for harsh environments.
Reliability is ensured by burn-in and running
memory diagnostics that check operations while
temperature-cycling the boards. |
