M.2 Interposers Monitor, Capture, Record PCIe Bus Traffic

M.2 Interposers Monitor, Capture, Record PCIe Bus Traffic

When using the M.2 Interposer Card, coupled with Summit protocol analyzers, PCI Express (PCIe) bus traffic between a system board or tablet and a M.2/NGFF connector on a solid-state disk (SSD) can be monitored, captured, and recorded for protocol analysis. Teledyne LeCroy’s interposer supports analysis for all PCIe protocols, such as SATA Express (ATA/AHCI/PCIe) and NVM Express (NVMe) at 2.5 to 8 Gtransfers/s and lane widths of x2 and x4. The card supports both M.2 connectors—Socket 2 and Socket 3. Socket 2 (keyed as “B”) allows for PCIe x2 interfaces for SSDs, WWAN, or other non-storage devices. Socket 3 (keyed as “M”) strictly deals with high-performance storage, offering x4 lanes of bandwidth. In some cases, a “B/M” keyed SSD, which is both a Socket 2 and 3 type device, also will be available. A “B,” “M,”, or “B/M” keyed memory SSD can then be connected to a host-based B or M connector, which can support any of those three memory SSDs. Two versions of the M.2 interposer support all three memory SSD types: one is for use with B and B/M types, and a second is for M and B/M types. Both support 42-, 60-, 80-, and 110-mm SSD lengths.


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