Barracuda PMC+ Card

High Speed A/D I/O Card with Reconfigurable FPGA, 64/66 PCI and SHARC® Link Ports

BittWare's Barracuda PMC+ board is a high speed analog input board that provides data capture for two 14 Bit, up to 105 MHz A/D channels and streams the data directly to a Xilinx Virtex-II FPGA, which provides A/D control and data distribution and front end processing capabilities. A 64 Bit, 66 MHz PCI interface and four SHARC link ports make the captured data available to the host board, and a bank of up to 512 MB of SDRAM is available for snapshot acquisitions.

The main features of the Barracuda include: 2 channel 14-Bit high speed A/D interface Xilinx Virtex-II reconfigurable FPGA SharcFIN® ASIC optimised PCI interface Industry standard PMC+ I/O interface Up to 512MB SRAM for snapshot applications 4 external link ports Clocking via on-board oscillator, external clock, external or internal trigger

High-Speed A/D Interface

The high-speed A/D interface features two 14-Bit A/D conversion channels each sampled at up to 105MHz. Using high-quality 14-Bit ADCs from Analog Devices, the analogue interface provides input bandwidth up to 350MHz and is available with AC or DC coupled inputs. For clocking options, the board features an internal clock with an on-board programmable clock divider and an external clock and trigger. An optional oven controlled crystal oscillator (OCXO) is available for a high-stability clock in place of the standard on-board oscillator. Please note that the oven controlled oscillator (OCXO) option violates the PMC+ height specification.

Xilinx Virtex-II Reconfigurable FPGA

The Virtex-II reconfigurable FPGA (Xilinx) provides A/D control and data distribution for the Barracuda-PMC+ and is available for configurable preprocessing of high-speed A/D data such as digital filtering, decimation and digital down conversion. To interface the A/D data to the host the Virtex-II contains a link port interface for directly accessing ADSP-TS201, ADSP-TS101 or ADSP-2116x DSPs and a local bus interface to access the PCI host and the SDRAM buffer.

SharcFIN ASIC 64-Bit, 66MHz PCI Bus Interface

BittWare's SharcFIN® ASIC provides a full 64-Bit, 66MHz bus mastering PCI interface and an SDRAM controller to interface the SDRAM and the Virtex-II to the PCI host. The SharcFIN interfaces to the PCI bus at 64-Bits, 66MHz for 528MB/s burst throughput and provides both bus mastering DMA capability and slave access to the SDRAM and Virtex-II.

PMC+ I/O Interface

The Barracuda-PMC+ is fully compatible with any PMC capable base board. When attached to one of BittWare's PMC+ base boards it also supports BittWare's PMC+ extensions which include four link ports directly to the Virtex-II FPGA. The PMC+ link ports are configurable for BittWare's TigerSHARC (ADSP-TS201 & ADSP-TS101) base boards and are an ideal way to move high-speed data directly to the DSPs. This feature is not available for Hammerhead (ADSP-2116x) SHARC® DSP base boards.

Development Tools

BittWare offers complete software development tools that allow designers to easily develop application code and integrate the Barracuda-PMC+ into their systems. For user-configurable pre-processing Xilinx also provides a complete suite of development tools for the Virtex-II FPGA. BittWare offers a Barracuda Developer's Kit for the Virtex-II that includes the source for the A/D, link port and local bus interfaces.

For more details of any BittWare PMC+ product, please contact Sarsen Technology on +44 1672 511166 or visit the BittWare web site: BittWare Inc.