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Migrating Intel® 8033x I/O Processors to Intel® 81348 I/O Processor Application Note
Intel® 81348 I/O Processor (81348) has dual-core Intel XScale® technology¹ and dual-interface architecture. One of the cores is dedicated to running the SAS transport firmware (FW) and is called the "Transport Core." The other core is named the "Application Core" and is where customer BSPs and OSes execute. Intel provides a 2 MB binary that resides at 0x0 in Flash and provides for both initial boot code (for both cores, called "common boot"), as well as the transport core FW that provides the programming interface into the transport core. The common boot code model assures synchronized start-up of the cores, while maintaining maximum flexibility for the application core developer. Source code for the common boot code is not provided. However, full particulars on the state of the application core upon first customer instruction fetch, is to be fully detailed in the final documentation and covered later in this document.
¹ ARM* architecture compliant.
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