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.[1][2][3]
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Transcription
Details
Two identical connectors carry the signals specified by the 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].
See also
References
- ^ "What is SUMIT?". Small Form Factor Special Interest Group. 2008-04-11. Retrieved 9 November 2008.
- ^ "SUMIT - Stackable Unified Module Interconnect Technology". Retrieved 9 November 2008.
- ^ "Pico-ITXe Specification". VIA Technologies Inc. 2008. Retrieved 9 November 2008.
External links
- Small Form Factor Special Interest Group
- SFF-SIG SUMIT specification overview page
- SUMIT Specifications version 1.5
- Samtec SUMIT connector page
- SFF-SIG Pico-ITXe overview page
- SUMIT compliant SBC/Host boards & I/O Card vendors
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This page was last edited on 11 February 2021, at 04:45