S730 Radiation Tolerant SpaceWire PMC
Aitech Systems
A radiation-tolerant PMC card providing three full-duplex SpaceWire ports compliant with ESA ECSS-E-50-12C at up to 100 MHz, with 128 MB onboard SDRAM and less than 5 W power consumption.
Technical specifications
- SpaceWire Ports
- 3 full-duplex, ESA ECSS-E-50-12C compliant
- Clock Frequency
- Up to 100 MHz (selectable per port)
- PCI Interface
- 32-bit PCI 2.2, 33.333 MHz, Master/Slave
- Onboard Memory
- 128 MB volatile SDRAM
- Power Consumption
- < 5 W (SpaceWire only)
- Total Ionizing Dose
- >100 krad (Si) (flight model)
- Optional I/O
- 2 × RS-422 serial, 32 × GPIO
- FPGA
- Anti-fuse (upset-immune)
- Form Factor
- Single-width PMC
About
The S730 is Aitech’s radiation-tolerant SpaceWire PMC card, designed to add ESA-standard SpaceWire connectivity to the SP0-S single-board computer and other 3U CompactPCI host boards. It provides three full-duplex SpaceWire ports compliant with ESA ECSS-E-50-12C, each selectable up to 100 MHz clock frequency, enabling high-speed point-to-point data communication between spacecraft subsystems.
The card implements PCI bus master and target functions in an anti-fuse FPGA device, providing immunity to configuration upsets in radiation environments. It incorporates 128 MB of onboard volatile SDRAM to buffer SpaceWire data packets, managed via a DMA engine for efficient PCI data transfers. Independent port enable/disable capability and timecode generation and response per port allow flexible network topology management.
The card achieves greater than 100 krad (Si) total ionizing dose in its flight model configuration and consumes less than 5 watts for SpaceWire-only operation. Optional RS-422 serial interfaces (two channels) and 32 GPIO lines are available for additional low-speed connectivity.
Documentation
No public datasheet yet — request the datasheet / ICD from the supplier.
