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muNVMe IPMultiple data stream access to NVMe SSD simultaneously without CPU!

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muNVMe-IP

muNVMe-IP (Multi User NVMe IP) is designed and optimized for multiple data stream access to single NVMe SSD by multiple users simultaneously. muNVMe-IP can achieve close to SSD's maximum possible throughput for both mixed read/write and same direction access. This IP is recommended for the application that requires high performance & multiple data streaming or sequential access over single NVMe SSD by pure hardware logic without CPU/OS. Customization to increase the number of users is possible upon customer's requirements.

Features

  • NVMe host controller for access one NVMe SSD without CPU and external memory
  • Support two users to access one SSD simultaneously
  • Simple user interfaces by dgIF typeS
  • Include two 256-Kbyte RAMs for two users
  • Command support:
    • User#0 (Main user): Identify, Shutdown, Write, Read, SMART, and Flush
    • User#1 (Sub user): Write and Read
  • Supported NVMe device
    • Base Class Code:01h (mass storage), Sub Class Code:08h (Non-volatile), Programming Interface:02h (NVMHCI)
    • MPSMIN: 0 (4KB)
    • MDTS: At least 5 (128 KB) or 0 (no limitation)
    • LBA unit: 512 bytes or 4096 bytes
    • Support multiple queues
  • User clock frequency must be more than or equal to PCIe clock (250MHz for Gen3)
  • Operating with Avalon-ST Hard IP for PCIe by using 4-lane PCIe Gen3 (128-bit bus interface)
  • One muNVMe IP connects to one NVMe SSD directly
  • Available reference design:
    • Two-user demo
    • 2-ch RAID0 demo
  • Customized service for following features
    • Additional NVMe commands
    • Increase user channel
* Features and specifications are planned and subject to change without notice.

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muNVMe-IP



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