Harman Patil (Editor)

SUMIT

Updated on
Edit
Like
Comment
Share on FacebookTweet on TwitterShare on LinkedInShare on Reddit

Stackable Unified Module Interconnect Technology (SUMIT) is a connector between expansion buses independent of motherboard form factor. Boards featuring SUMIT connectors are usually used in "stacks" where one board sits on top of another. It was published by the Small Form Factor Special Interest Group.

Details

Two identical connectors carry the signals specified by the SUMIT standard. Commonly referred to as SUMIT A & SUMIT B, designers have the option of designing with either both SUMIT A and B, or just SUMIT A. The signals carried within each connector is as follows:

SUMIT A:

  • One PCI-Express x1 lane
  • Four USB 2.0
  • ExpressCard
  • LPC
  • SPI/uWire
  • SMBus/I2C Bus
  • SUMIT B:

  • One PCI-Express x1 lane
  • One PCI-Express x4 or four more PCI-Express x1 lanes
  • As of August 2009, three board form factors used the SUMIT connectors for embedded applications: ISM or SUMIT-ISM [90mm × 96mm], Pico-ITXe [72mm × 100mm], and Pico-I/O [60mm × 72mm].

    References

    SUMIT Wikipedia


    Similar Topics