Intel Personal Computer NetStructure Single Board Computer Manuel d'utilisateur Page 144

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Intel NetStructure
®
MPCBL0010 Single Board Computer
October 2006 Technical Product Specification
Order Number: 304120 143
Hardware Management Overview—MPCBL0010 SBC
Upon successful verification of the operational code checksum, the firmware jumps to
the operational code.
When the firmware enters firmware (FW) update mode, the operational code uses a
special branch, Software Interrupt, to jump to the FW update code in the boot block.
Once in FW update mode, the update code is copied into RAM, then the firmware jumps
to the code in RAM to execute. The firmware update code cannot execute out of flash
while the flash is being updated.
Figure 26 illustrates the firmware code process.
Figure 26. IPMC Firmware Code Process
No
No
IPMC Boot Block
Main IPMC Code
RAM
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