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The region-specific NVer title for this NCSD presumably must exist on NAND. The NVer title version may also be used to check whether a system update is required before running the app.
The region-specific NVer title for this NCSD presumably must exist on NAND. The NVer title version may also be used to check whether a system update is required before running the app.
== NCSD ExHeader ==
{| class="wikitable" border="1"
|-
! OFFSET
! SIZE
! DESCRIPTION
|-
| 0x1000
| 8
| Title ID of main NCCH
|-
| 0x1008
| 8
| Reserved
|-
| 0x1010
| 0x30
| Initial Data
|-
| 0x1040
| 0xC0
| Reserved
|-
| 0x1100
| 4
| Magic ID, always 'NCCH'
|-
| 0x1104
| 4
| Content size, in media units (1 media unit = 0x200 bytes)
|-
| 0x1108
| 8
| Partition ID
|-
| 0x1110
| 2
| Maker code
|-
| 0x1112
| 2
| Version
|-
| 0x1114
| 4
| Reserved
|-
| 0x1118
| 8
| Program ID
|-
| 0x1120
| 1
| Temp flag
|-
| 0x1121
| 0x2F
| Reserved
|-
| 0x1150
| 0x10
| Product code
|-
| 0x1160
| 0x20
| Extended header hash (SHA-256), over the cleartext ExHeader
|-
| 0x1180
| 4
| Extended header size
|-
| 0x1184
| 4
| Reserved
|-
| 0x1188
| 8
| Flags: byte[5]-byte[7] indicate content type ( system update, application, manual, ... ) size of media unit ( 512*2^byte[6] ) and encryption.
|-
| 0x1190
| 4
| Plain region offset, in media units
|-
| 0x1194
| 4
| Plain region size, in media units
|-
| 0x1198
| 8
| Reserved
|-
| 0x11A0
| 4
| ExeFS offset, in media units
|-
| 0x11A4
| 4
| ExeFS size, in media units
|-
| 0x11A8
| 4
| ExeFS hash region size, in media units
|-
| 0x11AC
| 4
| Reserved
|-
| 0x11B0
| 4
| RomFS offset, in media units
|-
| 0x11B4
| 4
| RomFS size, in media units
|-
| 0x11B8
| 4
| RomFS hash region size, in media units
|-
| 0x11BC
| 4
| Reserved
|-
| 0x11C0
| 0x20
| ExeFS superblock hash, over the cleartext ExeFS
|-
| 0x11E0
| 0x20
| RomFS superblock hash
|-
| 0x1200
| 0x2E00
| Reserved/Unused (Is filled with either 'F's or '0's)
|}
From the magic 'NCCH' to the end of the 'RomFS superblock hash' the data is identical to the [[NCCH#NCCH Header|NCCH Header]] of the [[NCCH#CXI|Executable NCCH]] Partition (NCCH 0).