SoM based on Microchip’s low-power PolarFire RISC-V SoC FPGA

2 March, 2020

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The M100PFS is based on the PolarFire SoC FPGA architecture by Microchip and combines high-performance 64-bit RISC-V cores with outstanding FPGA technology. The platform integrates a hardened real-time, Linux capable, RISC-V-based MPU subsystem on the mid-range PolarFire FPGA family, bringing low power consumption, thermal efficiency and defence grade security to embedded systems.

The RISC-V CPU micro-architecture implementation is a simple 5 stage, single issue, in-order pipeline that doesn’t suffer from the Meltdown and Spectre exploits found in common out-of-order machines. All five CPU cores are coherent with the memory subsystem allowing a versatile mix of deterministic real time systems and Linux in a single multi-core CPU cluster.

Features:

Microsemi PolarFire SoC FPGA
- - MPFS025T
    23KLE, 68 math blocks, 4x SERDES 12.5Gbit/s, 2x PCIe root port/end point
  - MPFS095T, available on request
    93KLE, 292 math blocks, 4x SERDES 12.5Gbit/s, 2x PCIe root port/end point
  - MPFS160T, available on request
    161KLE, 498 math blocks, 8x SERDES 12.5Gbit/s, 2x PCIe root port/end point
  - MPFS250T
    254KLE, 784 math blocks, 16x SERDES 12.5Gbit/s, 2x PCIe root port/end point
Quad 64-bit RV64GC cores, 667 MHz
64-bit RV64IMAC monitor core, 667 MHz
Processor I/O
- 2x Gigabit Ethernet
- 1x USB 2.0 OTG
- 1x MMC 5.1 SD/SDIO
- 2x CAN 2.0 A and B
- Execute in place Quad SPI flash controller
- 5x multi-mode UARTs
- 2x SPI, 2 I2C
- RTC, GPIO
- 5x watchdog timers
- timers
Processor to FPGA Interconnect
- 2 64-bit AXI4 processor-to-fabric interfaces
- 3 64-bit AXI4 fabric-to-processor interfaces
- 1 32-bit APB processor-to-fabric interface
1/2/4 GByte LPDDR4 RAM dedicated to the HMS
1/2/4 GByte LPDDR4 RAM dedicated to the FPGA
32 Mbit NOR Flash
4 – 64 GByte eMMC memory
Clock distribution
default configuration:
- Gigabit Ethernet
- UART
- CAN
- SPI
- I²C
- USB
single 3,3V supply
size 74mmx42mm
2 x Samtec QSH-090-01-F-D-A board-to-board interconnect