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The MM-6496D is a high-speed, nine port, single
slot VME memory buffer that provides up to 2GB
of DRAM for FPDP, VME and RACEway systems. Data
from two independent FPDP ports and two
independent RACEway ports can be directly
transmitted or received from any one of four
"non-busy" RACEway ports at 160MB/s with a
combined data rate of 640MB/s.
The card can be placed at the front or rear end
of a real time 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 and arbitration and overhead for the host.
This dramatically improves overall system
performance with a single slot solution. The
MM-6496D can also provide the additional benefit
of being a gateway from FPDP directly into the
RACEway or VME.
In addition to having two FPDP
ports and a VME port, the card has two RACEway
ports on P2 and four RACEway ports on the face
of the board. Each of these four ports has an
individual memory bank with up to 512MB of DRAM.
Each memory bank can be accessed simultaneously,
but only through its dedicated RACEway port.
Because the interface is built
into an FPGA, there is no hardware integration
required to configure the FPDP/RACEway
connection. Loading a simple config file is the
only software installation required to achieve
the fastest possible FPDP to RACEway solution.
The two bi-directional FPDP ports
can be configured as either two input ports, two
output ports, or one input and one output port.
Data can be transmitted or received from each
FPDP port simultaneously and the FPDP ports
conform to FPDP/TM (Transmit Master), FPDP/RM
(Receive Master), FPDP/R (Receive) through
jumper selection.
The FPDP ports are controlled by
a full chain DMA in the RACEway interface and
can be initialized by a host processor on either
the VME bus or over the RACEway.
Users who desire access through
FPDP and VME but do not require RACEway can
still access each of the four memory banks
through their dedicated RACEway ports without
utilizing MCOS.
Reliability is ensured by burn-in
and running memory diagnostics that check
operations for 48 hours while
temperature-cycling boards from 0° to 60° C.
 MM-6496D
Product Specification Sheet (PDF file format) |
