Secure Monitor: Difference between revisions

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==== 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), 1 (Copper), 2 ~~(Hoag~~) or 3 (Invalid).

[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) is '''Prototype'''.

* 3 (Invalid).

~~[4.0.0+] This item~~ is ~~obtained by checking bits 8, 2~~ 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)~~.

Value 2 is reserved and considered invalid.

[7.0.0+] This item ~~no longer depends on fuses~~ and can ~~only~~ be 0 (Icosa) ~~or 0xF~~ (Invalid) ~~in retail units~~.

[4.0.0+] This item is 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'''.

* 3 ('''Iowa'''; Mariko retail and EDEV), if new hardware type (bits 16-19) is '''Iowa'''.

* 4 (Invalid).

[8.0.0+] This item can be 0 (Icosa), 1 (Copper), 2 (Hoag), 3 (Iowa), 4 (Calcio) or 5 (Invalid). It still ~~can~~ only be 0 (Icosa) or 0xF (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''').

* 5 (Invalid).

It is still only 0 (Icosa) or 0xF (Invalid) in retail units.

==== IsRetail ====

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 ==== 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), 1 (Copper), 2 (Hoag) or 3 (Invalid).
+[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) is '''Prototype'''.
+* 3 (Invalid).
-[4.0.0+] This item is obtained by checking bits 8, 2 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).
+Value 2 is reserved and considered invalid.
-[7.0.0+] This item no longer depends on fuses and can only be 0 (Icosa) or 0xF (Invalid) in retail units.
+[4.0.0+] This item is 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'''.
+* 3 ('''Iowa'''; Mariko retail and EDEV), if new hardware type (bits 16-19) is '''Iowa'''.
+* 4 (Invalid).
-[8.0.0+] This item can be 0 (Icosa), 1 (Copper), 2 (Hoag), 3 (Iowa), 4 (Calcio) or 5 (Invalid). It still can only be 0 (Icosa) or 0xF (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''').
+* 5 (Invalid).
+It is still only 0 (Icosa) or 0xF (Invalid) in retail units.
 ==== IsRetail ====