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→Options for AXEL ULite users
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==Options for AXEL ULite users==
From the point of view of boot configuration programming, AXEL ULite portfolio consists of two basic categories of ordering codes:
#part numbers in the form TBD DLTx0xx'''0'''0x2R have eFUSEs not programmed
#the other ordering codes have eFUSE programmed as detailed in the [[#P-eFUSE ordering codes|following section]].
For convenience, the products belonging to the first category will be denoted as ''NP-eFUSE''. The others will be referred as ''P-eFUSE''.
This leads to three different boot flows and that are shown in the following pictures.
This configuration makes use of NAND flash as primary internal boot device. NOR flash is used as secondary boot device where, for example, a so-called ''golden image'' of the bootlader can be stored.
[[File:AXELULite-boot-NAND-NOR.png|thumb|center|750px|Boot flow for ordering code in the form TBDDLTxxxx'''2'''0x2R]]
This configuration makes use of NAND flash as primary - and only - internal boot device. [[File:AXELULite-boot-NAND.png|thumb|center|750px|Boot flow for ordering code in the form TBDDLTx0xx'''2'''0x2R]]
This configuration makes use of NOR flash as primary internal boot device. Nevertheless, NAND flash is available for generic storage. NAND flash can not be used as booting device.
[[File:AXELULite-boot-NOR-NAND.png|thumb|center|750px|Boot flow for ordering code in the form TBDDLTxxxx'''1'''0x2R]]
*NOR option: From the point of view of boot process, this configuration is identical to the NOR-NAND option. This is clearly cheaper because NAND flash is not populated.
