The OBC-PF-VPX is a 3U SpaceVPX (VITA 78) System Controller built on the Microchip PolarFire® SoC (MPFS460T / MPFS460TS). Its flash-based FPGA architecture provides ZeroFIT single-event upset immunity without the scrubbing or EDAC overhead inherent to SRAM-based devices. Twenty firmware-configurable SERDES lanes and 20 GB of ECC-protected memory support a single hardware baseline for Command and Data Handling, high-rate payload data recording, and protocol bridging — mission personality is selected through firmware with no hardware changes.

Microchip PolarFire SoC MPFS460T as main processor provides seamless processing power but interface capability is main advantage on this product.

Interface capability for Std. OBC is as following:

• SERDES — Data Plane: ≤10 lanes — Fat/Thin Pipe to payload slots; Aurora, 10GBASE-R XFI, or user-defined protocol
• SERDES — PCIe: 4 lanes — Gen2 ×4 hard block — expansion plane; switch payload card for multi-slot fan-out
• SERDES — Spare: ≥6 lanes — User-assignable: SATA III, JESD204B, 10GigE, inter-OBC sync
• SpaceWire: 4 ports (BP) — FPGA fabric LVDS; ECSS-E-ST-50-12C / RMAP control plane; additional ports via I/O payload card
• GigE Ethernet: 2 ports — Hard MAC SGMII; one port also accessible via front-panel RJ45 connector
• CAN 2.0 B: 2–4 ports — Hard CAN; primary ports exposed via front-panel Micro-D; extended capacity via I/O card
• RS-422 / RS-485: 2–8 ports — UART + line drivers; full / half-duplex; via front-panel Micro-D and / or I/O payload card
• RS-232 / UART: 2–4 ports — Hard UART
• SPI / I2C: 2–4 each — Masters: MRAM, QSPI, sensors, management bus; extended I/O via payload card
• USB 2.0: 1 port — Debug and firmware update; accessible via front-panel Micro-D
• GPIO 20–60 Fabric GPIO (PWM-capable, discrete);
• ADC 8–16, 12 / 16-bit ADC housekeeping; extended I/O via payload card

With several companion boards, final OBC will have ultimate interface capability. Here are compatible peripheral boards:

• PolarStore-2S: SATA Storage — 2-drive SATA SSD payload module — 4 TB total; SERDES-driven from OBC backplane data plane
• PolarStore-4S: SATA Storage — 4-drive SATA SSD payload module — 8 TB total; high-capacity recorder configuration
• PolarStore-2N: NVMe Storage — 2-drive NVMe SSD payload module — up to 8 TB total; low-latency direct-attach
• PolarStore-4N: NVMe Storage — 4-drive NVMe SSD payload module — up to 16 TB total; maximum-capacity recording
• SpaceUM-Polar: Utility — Dual-string power / clock / reset switching — LCL per slot, up to 5 modules
• PSU-Polar-3U: Power — VITA 62-aligned 3U SpaceVPX power supply card
• SpaceVPX-BP-SS: Backplane — Single-string 3U SpaceVPX backplane — 4 to 5 slots
• SpaceVPX-BP-DS: Backplane — Dual-string 3U backplane — 8 slots; dual OBC + SpaceUM for full redundancy
• SpaceVPX-CHX: Chassis — Conduction-cooled aluminium chassis — 4, 6, or 8-slot variants