Cascade Single Board Computer

The Cascade Single Board Computer (SBC) is designed to bring high configurability to meet the demands of space. The Moog Cascade SBC is a 3U extended SpaceVPX board aligned to Space SOSA. The Cascade SBC board integrates the Microchip PIC64-HPSC© High-Performance Spaceflight Computing (HPSC) microprocessor which is a radiationhardened 10-Core RISC-V® processor with Layer 2 switch. The Cascade SBC cores provide secure boot, dedicated system controller, and eight application cores. The application cores include WorldGuard© isolation for independent applications, dual-core lockstep for increased upset tolerance, and various shared or cache-isolated configurations. The Cascade SBC enables a single board to support multiple payloads and spacecraft bus processing needs within a single unit.

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Overview

The Cascade SBC enables a single board to support multiple payloads and spacecraft bus processing needs within a single unit. The general features available on the SBC are listed below:

Processor Function

8 RISC-V Application Cores

Per Core:

RISC-V Vector extension

32KB I-Cache, 64KB D-Cache

256KB L2 Cache

8MB L3 Cache
Real Time Dual-Core Lockstep with Fault Detection and Mitigation

- PCIe CXL Links

- WorldGuard/Fault Isolation

- RISC-V System Controller Processor

System and Power Management

- RISC-V Secure Controller Processor

Secure Boot

- Multiple Levels of Encryption

- Layer 2 Switch with TSN support

- VxWorks/Linux® Software Support

- Debug Capabilities:

JTAG and HSSTP test ports

Backplane I/O Functions

Data Plane: 1G or 10G Ethernet
Expansion Plane: PCIe® Gen 1,2,3 supported
Control Plane: SpW or 1G Ethernet
Utility Plane: I2C Utility Plane

Board Functions

16GBytes DDR4
4Gbits MRAM Boot Code
64GBytes SLC NAND FLASH
Chassis Manager

- Power Control

- Watchdog, Voltage and Temp Monitors

- Multi-Boot Modes/Configurations

Radiation

- 50KRAD TID without shielding

- SEL: 78 MeV/cm2 after bootup

Flexible Power Management

- Power: 2W Standby, 25W Typical

(usage dependent)

Front Panel Functions Configurable XMC

Optical 10G Ethernet

- 1G Ethernet

- 300Mbps SpaceWire with RMAP & Time

- 1PPS Time Sync In/Out

CASCADE SBC BOARD

Features	Specifications
Form Factor	Extended 3U
Dimension	Form Factor: 220 x 100 x 40.64 mm (Width x Depthx Height)
Power Input	3.3V Auxiliary Power: Chassis Manager Only
Power Input	5V Main Power

CASCADE SBC WITH ENCLOSURE (Optional)

Features	Specifications
Form Factor	Extended 3U Box
Dimension	146.8 mm X 251.0 mm X 76.2 mm (Width x Depth x Height)
Power Input	28 ± 6 V Input EMI Filtered Isolated Power