T2-PMC
Quad ADSP-TS201S TigerSHARC PMC Board
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Product Overview
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Product Overview
BittWare’s T2-PMC (T2PM) DSP board features the ADSP-TS201 TigerSHARC processor from Analog Devices. To take full advantage of this high-performance
DSP, this multiprocessor PCI Mezzanine Card (PMC) implements
BittWare's ATLANTiS, which combines robust TigerSHARC processing with the versatile Virtex-II Pro FPGA from Xilinx to offer ultra high performance and
unprecedented I/O bandwidth.
The T2PM matches a cluster of four ADSP-TS201 TigerSHARCs with:
- High-bandwidth, low-latency off-board I/O, reconfigurable for
nearly any application
- High-speed interprocessor communication network to facilitate
scalability
- SharcFIN PCI-DSP bridge for integrating DSPs with PCI bus and other
peripherals
- Comprehensive software for ease-of-use
The board also provides a large on-board bank of SDRAM and flash
memory for hostless boot.
High-Performance TigerSHARC Processing
The T2PM features a cluster of four ADSP-TS201 TigerSHARC DSPs, which
are interconnected by a 64-bit, 83.3 MHz cluster bus. The ADSP-TS201
processor operates at up to 600 MHz, providing 3.6 GFLOPS of peak processing power.
Because of its superscalar architecture, the ADSP-TS201 is also efficient at
fixed-point processing, with each DSP supporting 14.4 BOPS of
processing. Along with 24 Mbits of on-chip RAM, each DSP also boasts
four high-speed LVDS link ports.
Each full-duplex link port is comprised of a 4-bit transmit and a 4-bit receive channel, and can support up to 500 Mbytes/s in each direction for a total maximum throughput of 1 GByte/s.
Two link ports from each DSP are used to create an interprocessor communications ring, and the remaining two link ports are routed to the ATLANTiS FPGA. When connected to ATLANTiS, the link ports run at 250 Mbytes/s (125 Mbytes/s per channel).
SharcFIN PCI-DSP Bridge
The T2PM features a BittWare SharcFIN PCI-DSP bridge chip that gives the
DSPs low-overhead access to the host via the 64-bit, 66 MHz PCI
interface. The SharcFIN also provides a general purpose peripheral bus
that allows the DSPs to access the Flash and the FPGA control registers. It
also provides host access to the DSPs, on-board SDRAM, Flash, and
FPGA control registers.
High-Bandwidth, Low-Latency Off-Board I/O
The T2PM boasts a tremendous amount of I/O bandwidth and options, including PMC interface with BittWare's PMC+ I/O extensions, and eight RocketIO high-speed serial transceivers. Total potential I/O bandwidth is greater than 4 GB/sec.
Xilinx Virtex-II Pro FPGA
A Xilinx Virtex-II Pro (XC2VP30) FPGA adds
tremendous flexibility to the board and is useful for
routing communications, translating protocols, and
implementing algorithms. It is used to implement
eight on-board TigerSHARC link ports and supports a
variety of external digital I/O (DIO), flags, and
interrupts. 64 digital I/O pins are brought to the FPGA
from the PMC user connector (PMC+). The Virtex-II
Pro’s eight RocketIO high-speed serial transceivers,
which are brought off-board, provide additional
external communications.
ATLANTiS
To facilitate off-board I/O and provide communications routing and processing, the T2PM features BittWare's ATLANTiS, which is implemented in the Xilinx Virtex-II Pro FPGA. All off-board I/O for the board is routed through the FPGA, which can support a throughput of 4 GBytes/sec. By tightly integrating the DSPs, PCI bridge, PMC interface, and I/O peripherals with the on-board FPGA, ATLANTiS gives designers nearly infinite options for configuring and routing the I/O.
The eight bi-directional TigerSHARC link ports routed to the ATLANTiS FPGA provide 2 GBytes/s of data transfer between the DSP cluster and the FPGA. Using its eight RocketIO high-speed serial transceiver channels and the 64 pins of digital I/O available via the PMC user connector (PMC+), the FPGA can communicate off-board at greater than 4 GBytes/s. It can be configured to connect the I/Os to each other or to the ADSP-TS201 link ports, allowing any combination of inputs and outputs to be routed together. Each digital I/O signal can also be individually configured as single-ended or LVDS. ATLANTiS adds tremendous flexibility to the DSP subsystem, allowing system designers to route the link ports and digital I/O blocks as their specific applications require.
T2 Board Family
The T2PM is part of BittWare’s T2 board family, which features the
ADSP-TS201 TigerSHARC DSP on a variety of platforms. The boards all
feature a common, scalable architecture - ATLANTiS - and are available
in PCI-X plug-in, PMC, VME, and 6U CompactPCI form factors.
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