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1,238 bytes added ,  18:43, 7 October 2019
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'''nx-abca2''' ('''Icosa''' or '''Hoag''' in '''Erista''', '''Iowa''' or '''Hoag''' in '''Mariko''') hardware types are variations of the retail and EDEV form factors.
'''nx-abcb''' ('''Copper''') is the SDEV unit. Among other differences, this has extra hardware to support HDMI output.
[8.0.0+] '''nx-abcc''' ('''Hoag''') was added for '''Mariko'''.
'''Erista''' memory is LPDDR4, while '''Mariko''' memory is LPDDR4X.
==== HardwareType ====
[1.0.0+] This item is obtained by checking bits 8 and 2 from [[Fuse_registers#FUSE_RESERVED_ODM4|FUSE_RESERVED_ODM4]]. It can be :* 0 ('''Icosa'''; Erista retail and EDEV), if development flag (bit 8) is '''Retail''' and production flag (bit 2) is '''Production'''.* 1 ('''Copper'''; Erista SDEV), if development flag (bit 8) is '''Development''' and production flag (bit 2 (Hoag) or is '''Prototype'''.* 3 (Invalid).
[4.0.0+] This item Value 2 is obtained by checking bits 8, 2 reserved and 16-19 from [[Fuse_registers#FUSE_RESERVED_ODM4|FUSE_RESERVED_ODM4]]. It can be 0 (Icosa), 1 (Copper), 2 (Hoag), 3 (Iowa) or 4 (Invalid)considered invalid.
[74.0.0+] This item no longer depends on fuses is obtained by checking bits 8, 2 and 16-19 from [[Fuse_registers#FUSE_RESERVED_ODM4|FUSE_RESERVED_ODM4]]. It can only be :* 0 ('''Icosa'''; Erista retail and EDEV), if development flag (bit 8) is '''Retail''' and production flag (bit 2) or 0xF is '''Production'''.* 1 ('''Copper'''; Erista SDEV), if development flag (bit 8) is '''Development''' and production flag (bit 2) is '''Prototype'''.* 3 ('''Iowa'''; Mariko retail and EDEV), if new hardware type (bits 16-19) is '''Iowa'''.* 4 (Invalid) in retail units.
Value 2 is reserved and considered invalid. [7.0.0+] This item can be obtained by checking bits 8, 2 and 16-19 from [[Fuse_registers#FUSE_RESERVED_ODM4|FUSE_RESERVED_ODM4]], but is now only 0 (Icosa) or 0xF (Invalid) in retail units. [8.0.0+] This item can be obtained by checking bits 8, 2 and 16-19 from [[Fuse_registers#FUSE_RESERVED_ODM4|FUSE_RESERVED_ODM4]]. It can be:* 0 ('''Icosa'''; Erista retail and EDEV), if development flag (bit 8) is '''Retail''' and production flag (bit 2) is '''Production'''.* 1 ('''Copper'''; Erista SDEV), if development flag (bit 8) is '''Development''' and production flag (bit 2) is '''Prototype'''.* 2 ('''Hoag'''; Mariko Lite retail and HDEV), if new hardware type (bits 16-19) is '''Hoag'''.* 3 ('''Iowa'''; Mariko retail and EDEV), if new hardware type (bits 16-19) is '''Iowa'''.* 4 ('''Calcio''') or .* 5 (Invalid).  It is still can only be 0 (Icosa) or 0xF (Invalid) in retail units.
==== IsRetail ====

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