The code MVME6100 PMCSPAN M  points to a component within a computer system, likely related to a Motorola VMEbus architecture. Here's a breakdown of what we can potentially understand and where to find more information:

**Breakdown:**

* **MVME6100:** This most likely refers to a single-board computer (SBC) from Motorola's VMEbus Module Eurocard (VMX) product line. VMEbus was a popular computer bus standard used in industrial automation and embedded computing systems in the past.
* **PMCSPAN M:** This part is less clear-cut. Here are some possibilities:
    * **PMCSPAN:** It could be a specific model name or code for an add-in card compatible with the MVME6100 single-board computer. PMC (PCI Mezzanine Card) is a standard for add-in cards for embedded systems.
    * **PMC SPAN M:** "SPAN" might indicate an expansion card functionality, possibly related to additional memory or I/O (Input/Output) capabilities. The "M" could be a revision number or variant identifier.

**Finding Information:**

Due to the age of VMEbus technology, publicly available information about specific components like MVME6100 and PMCSPAN M might be limited. Here are some suggestions for your search:

* **Online Search Engines:** Try searching the web using the entire code "MVME6100 PMCSPAN M" alongside keywords related to VMEbus systems and Motorola (e.g., "MVME6100 PMCSPAN M VMEbus SBC", "MVME6100 Motorola single board computer").
* **Obsolete Parts Websites:** Websites specializing in obsolete electronic parts might have datasheets or manuals for the MVME6100 or compatible PMC cards (search at your own risk as the information might be incomplete or inaccurate).
* **Motorola Documentation Archives:** Motorola Solutions, the successor company to Motorola, might have archived documentation for their discontinued products. Search their website or online resources for VMEbus or MVME6100 product lines.

**Additional Notes:**

* VMEbus systems are generally not common in cutting-edge applications. They might still be found in legacy industrial control systems or specialized embedded computing environments.
* Working with VMEbus systems might require knowledge of older computer architectures and potentially custom configurations.

If you can provide any additional context about where you encountered this code (e.g., from a specific device or system description), it might help narrow down the search for relevant information.