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fixed links for moved page
| 0x00000000
| 0x00000000
| 0x2
| 0x2
| ?
| 0xC
| Config savegame version?
| Config savegame version?
|-
| 0x00010000
| 0x1
| 0xC
| [[Hardware_calibration#RTC|RTC compensation value]]
|-
| 0x00020000
| 0x134
| 0xC
| [[Hardware_calibration#CDC|Codec]]
|-
| 0x00030000
| 0x1
| 0xC
| ??? (HWCAL block 0x28)
|-
|-
| 0x00030001
| 0x00030001
| 0x8
| 0x8
| 0xE
| 0xE
| ? (zeroed)
| User time offset (read by CECD)
|-
| 0x00030002
| 0x8
| 0xC
| ?
|-
|-
| 0x00040000
| 0x00040000
| 0x10
| 0x10
| 0x8
| 0xC
| ? (read by HID)
| [[Hardware_calibration#Touch|Touch calibration]] (read by HID)
|-
|-
| 0x00040001
| 0x00040001
| 0x1C
| 0x1C
| 0x8
| 0xC
| ? (read by HID)
| Analog Stick Calibration Param?(read by HID)
|-
|-
| 0x00040002
| 0x00040002
| 0x12
| 0x12
| 0x8
| 0xC
| ? (read by HID)
| [[Hardware_calibration#Gyro|Gyroscope]] (read by HID)
|-
|-
| 0x00040003
| 0x00040003
| 0xC
| 0xC
| 0x8
| 0xC
| ? (read by HID)
| [[Hardware_calibration#Accel|Accelerometer]] (read by HID)
|-
| 0x00040004
| 0x1C
| 0xC
| [[Hardware_calibration#CStick|CStick calibration data]]
|-
| 0x00050000
| 0x2
| 0xC
| [[Hardware_calibration#Screen_flicker|Screen flicker]]
|-
|-
| 0x00050001
| 0x00050001
| 0x2
| 0x2
| 0x8
| 0xC
| ? (read by GSP)
| Backlight controls (u8 ABL_powersave_enable, u8 brightness_level) (read by GSP)
|-
|-
| 0x00050002
| 0x00050002
| 0x38
| 0x38
| 0x8
| 0xC
| ? (read by GSP)
| [[Hardware_calibration#BLPWM|Backlight PWM]] (read by GSP)
|-
|-
| 0x00050003
| 0x00050003
| 0x20
| 0x20
| 0x8
| 0xC
| ? (read by GSP)
| [[Hardware_calibration#ABL|Power saving mode (ABL) calibration]] (read by GSP)
|-
| 0x00050004
| 0x20
| 0xC
| [[Hardware_calibration#ABL|Power saving mode (ABL) calibration]]
|-
|-
| 0x00050005
| 0x00050005
| 0x20
| 0x20
|?
| 0xE
| Stereo camera settings?
| Stereo display settings (HWCAL block 0x470)
|-
|-
| 0x00050006
| 0x00050006
| 0x2
| 0x2
| 0xC
| [[Hardware_calibration#ULCD_delay|3D switching delay]]
|-
| 0x00050007
| 0x4
| 0xC
| ?
|-
| 0x00050008
| 0x10C
| 0xC
| [[Hardware_calibration#ABL_extra|Power saving mode (ABL) extra config]]
|-
| 0x00050009
| 0x8
| 0x8
| ?
| 0xC
| new3DS only(?) backlight control (5th byte: auto-brightness enable)
|-
| 0x00060000
| 0x96
| 0xC
| ??? (HWCAL block 0x500)
|-
| 0x00070000
| 0x214
| 0xE
| [[Hardware_calibration#3D_filters|3D filters]]
|-
|-
| 0x00070001
| 0x00070001
| 0x1
| 0x1
|?
| 0xE
| Sound output mode?
| Sound output mode (mono=0, stereo=1, surround=2)
|-
| 0x00070002
| 0x8
| 0xE
| [[Hardware_calibration#Microphone_echo_cancel|Microphone echo cancellation params]]
|-
|-
| 0x00080000
| 0x00080000
| 0xC00
| 0xC00
| 0x2?
| 0xC
| WiFi configuration slot 0
| WiFi configuration slot 0
|-
|-
| 0x00080001
| 0x00080001
| 0xC00
| 0xC00
| 0x2?
| 0xC
| WiFi configuration slot 1
| WiFi configuration slot 1
|-
|-
| 0x00080002
| 0x00080002
| 0xC00
| 0xC00
| 0x2?
| 0xC
| WiFi configuration slot 2
| WiFi configuration slot 2
|-
|-
| 0x00090000
| 0x00090000
| 0x8
| 0x8
| 0x2?
| 0xE
| This contains a u64 ID, used by processes using [[NWMUDS:InitializeWithVersion]]. The first word is the same as [[CfgS:GetLocalFriendCodeSeed|LocalFriendCodeSeed]], while the latter is a separate word.
| This contains a u64 ID, used by processes using [[NWMUDS:InitializeWithVersion]]. The first word is the same as [[CfgS:GetLocalFriendCodeSeed|LocalFriendCodeSeed]], while the latter is a separate word.
|-
|-
| 0x8
| 0x8
| 0xE
| 0xE
| This console-unique u64 used by [[Cfg:GenHashConsoleUnique|GenHashConsoleUnique]] is generated with the LocalFriendCodeSeed and with random data
| Same content as 0x0009000? This console-unique u64 is used by [[Cfg:GenHashConsoleUnique|GenHashConsoleUnique]]. It is generated by <code>((0x3FFFFFFFF) & LocalFriendCodeSeed) | (random16 << 48))</code>, where random16 is generated by [[PSPXI:GenerateRandomBytes|GenerateRandomBytes]]
|-
| 0x00090002
| 0x4
| 0xE
| The first two bytes are the same random16 used in 0x00090001. The second two bytes are zeros.
|-
|-
| 0x000A0000
| 0x000A0000
| 0x1C
| 0x1C
| 0xE
| 0xE
| Username
| Username in UTF16
|-
|-
| 0x000A0001
| 0x000A0001
| 0x000A0002
| 0x000A0002
| 0x1
| 0x1
| 0xA
| 0xE
| Language
| Language
|-
|-
| 0x000B0000
| 0x000B0000
| 0x4
| 0x4
| 0x8
| 0xE
| CountryInfo
| CountryInfo
|-
|-
| 0x000B0001
| 0x000B0001
| 0x800
| 0x800
| 0x2?
| 0xE
| Country name in UTF-16, every 0x80-bytes is an entry for each language, in the order of the Language table below (not all entries are set)
| Country name in UTF-16, every 0x80-bytes is an entry for each language, in the order of the Language table below (not all entries are set)
|-
|-
| 0x000B0002
| 0x000B0002
| 0x800
| 0x800
| 0x2?
| 0xE
| State name in UTF-16, every 0x80-bytes is an entry for each language
| State name in UTF-16, every 0x80-bytes is an entry for each language
|-
|-
| 0x4
| 0x4
| 0xE
| 0xE
| Pair of 16-bit values, meaning unknown but related to address (ZIP code?)
| Coordinates. A pair of s16 represents latitude and longitude, respectively. One need to multiply both value by 180/32768 to get coordinates in degrees
|-
|-
| 0x000C0000
| 0x000C0000
| 0xC0
| 0xC0
| 0x8
| 0xE
| Restricted photo exchange data, and other info
| Restricted photo exchange data, and other info (includes a mirror of Parental Restrictions PIN/Secret Answer)
|-
|-
| 0x000C0001
| 0x000C0001
| 0x14
| 0x14
|?
| 0xE
| Same as above?
| COPPACS restriction data
|-
| 0x000C0002
| 0x200
| 0xE
| ? Contains the email address set during Parental Restriction setup.
|-
|-
| 0x000D0000
| 0x000D0000
| 0x4
| 0x4
| 0x2
| 0xE
| u16 at offset 0x0: [[SMDH#EULA_Version|EULA Version]] which was agreed to.
| u16 at offset 0x0: [[SMDH#EULA_Version|EULA Version]] which was agreed to.
|-
| 0x000E0000
| 0x1
| 0xE
| ?
|-
|-
| 0x000F0000
| 0x000F0000
| 0x10
| 0x10
| 0x8?
| 0xC
| Unknown, used by [[NS]] on dev-units for [[SVC|svcKernelSetState]], where Type is 6. During NS startup on debug-units, NS compares the u32 from +8 in this config-block with the [[Configuration_Memory#APPMEMTYPE|APPMEMTYPE]]. When those don't match NS starts a FIRM-launch (with the same FIRM titleID as the currently running one) to boot into a FIRM with the APPMEMTYPE value from this config-block
| Debug configuration, read by [[NS]] on dev-units: on startup, NS does <code>svcKernelSetState(6, 1, (u64)debug_flags & 1);
svcKernelSetState(6, 2, (u64)debug_flags & 2);</code> (see [[SVC#KernelSetState|here]]) where <code>debug_flags</code> is the u32 located at offset 0xC in this struct. Then it compares the u32 from +8 in this config-block with the [[Configuration_Memory#APPMEMTYPE|APPMEMTYPE]]. When those don't match NS starts a FIRM-launch (with the same FIRM titleID as the currently running one) to boot into a FIRM with the APPMEMTYPE value from this config-block. The byte at offset 0x0 is related to the memtype as well.
|-
| 0x000F0001
| 0x8
| 0xC
| ?
|-
| 0x000F0003
| 0x1
| 0xC
| ?
|-
|-
| 0x000F0004
| 0x000F0004
| 0x4
| 0x4
| 0x8?
| 0xC
| The first u8 is the System-Model [[Cfg:GetSystemModel|value]], the last 3-bytes are unknown
| The first u8 is the System-Model [[Cfg:GetSystemModel|value]], the last 3-bytes are unknown
|-
| 0x000F0005
| 0x4
| 0xC
| The first u8 indicates whether network updates are enabled (however, NIM only checks this flag with developer [[Configuration_Memory#ENVINFO|ENVINFO]]).
|-
| 0x000F0006
| 0x28
| 0xC
| ?
|-
| 0x00100000
| 0x2
| 0xC
| ?
|-
| 0x00100001
| 0x94
| 0xC
| Stores Parental Restrictions PIN/Secret Answer and other info
|-
| 0x00100002
| 0x1
| 0xC
| ?
|-
| 0x00100003
| 0x10
| 0xC
| ?
|-
|-
| 0x00110000
| 0x00110000
| 0x4
| 0x4
|?
| 0xC
| The low u16 indicates whether the system setup is required, such as when the system is booted for the first time or after doing a [[System Settings|System Format]]: 0 = setup required, non-zero = no setup required
| The low u16 indicates whether the system setup is required, such as when the system is booted for the first time or after doing a [[System Settings|System Format]]: 0 = setup required, non-zero = no setup required
|-
|-
| 0x00110001
| 0x00110001
| 0x8
| 0x8
| 0xA?
| 0xC
| TitleID of the menu to launch, used by [[NS]] on dev units (this block can be edited on dev units with [[3DS Development Unit Software#Config|Config]])
| TitleID of the menu to launch, used by [[NS]] on dev units (this block can be edited on dev units with [[3DS Development Unit Software#Config|Config]])
|-
|-
| 0x00120000
| 0x00120000
| 0x8
| 0x8
| 0x8
| 0xC
| ? (read by HID)
| [[Hardware_calibration#MCU|MCU volume slider related]] (read by HID)
|-
|-
| 0x00130000
| 0x00130000
| 0x4
| 0x4
|?
| 0xE
| If response is 0x100 then debug mode is enabled.
| If response is 0x100 then debug mode is enabled.
|-
| 0x00150000
| 0x4
| 0xC
| ?
|-
| 0x00150001
| 0x8
| 0xC
| ?
|-
| 0x00150002
| 0x4
| 0xE
| ?
|-
|-
| 0x00160000
| 0x00160000
| 0x4
| 0x4
| 0x8?
| 0xE
| Unknown, first byte is used by config service-cmd [[Config_Services|0x00070040]]. (Unknown whether the last 3-bytes are used)
| Unknown, first byte is used by config service-cmd [[Config_Services|0x00070040]]. (Unknown whether the last 3-bytes are used)
|-
| 0x00170000
| 0x4
| 0xE
| Miiverse (OLV) access key
|-
| 0x00180000
| 0x4
| 0xC
| QTM Infrared LED related, can be 0 or 1
|-
| 0x00180001
| 0x18
| 0xC
| [[Hardware_calibration#QTM|QTM calibration data]]
|-
| 0x00190000
| 0x1
| 0xC
| Unknown. NFC-module checks for value1/non-value1.
|}
|}
The developer unit TID block only exists on developer units.
The developer unit TID block only exists on developer units.
===Stereo Display Settings===
All values are hard-coded in cfg module.
{| class="wikitable" border="1"
|-
! Offset
! Size
! Value
! Description
|-
| 0x0
| 4
| 62.0f
|assumed pupillary distance in mm?
|-
| 0x4
| 4
| 289.0f
|assumed distance in mm between player's eyes and upper screen?
|-
| 0x8
| 4
| 76.80f
|width in mm of (old) 3DS upper screen (doesn't vary for different models?)
|-
| 0xC
| 4
| 46.08f
|height in mm of (old) 3DS upper screen (doesn't vary for different models?)
|-
| 0x10
| 4
| 10.0f
|
|-
| 0x14
| 4
| 5.0f
|
|-
| 0x18
| 4
| 55.58f
|
|-
| 0x1C
| 4
| 21.57f
|
|}
===Languages===
===Languages===
|-
|-
| 2
| 2
|?
| State/Province code.
|-
|-
| 3
| 3
| 0x18-0x1B
| 0x18-0x1B
| u32 NGWord version the username was last checked with. If this value is less than the u32 stored in the NGWord CFA "romfs:/version.dat", the system then checks the username string with the bad-word list CFA again, then updates this field with the value from the CFA
| u32 NGWord version the username was last checked with. If this value is less than the u32 stored in the NGWord CFA "romfs:/version.dat", the system then checks the username string with the bad-word list CFA again, then updates this field with the value from the CFA
|}
===WiFi Slot Structure===
====Network structure====
This is used twice in the actual WiFi slot structure.
{| class="wikitable" border="1"
|-
! Offset
! Size
! Description
|-
| 0x0
| 0x1
| Whether the network was set or not?
|-
| 0x1
| 0x1
| Whether to use this network strucutre to connect?
|-
| 0x2
| 0x1
| Whether this structure is the first (0) or the second (1) in the larger WiFi slot structure?
|-
| 0x3
| 0x1
| Padding ?
|-
| 0x4
| 0x20
| SSID of the network, without a trailing nullbyte.
|-
| 0x24
| 0x1
| Length of the SSID.
|-
| 0x25
| 0x1
| [[Nintendo_Zone#Beacon_payload_format|AP crypto key type]]
|-
| 0x26
| 0x2
| Padding ?
|-
| 0x28
| 0x40
| Plaintext of the passphrase of the network, without a trailing nullbyte.
|-
| 0x68
| 0x20
| PBKDF2 of the passphrase and SSID (http://jorisvr.nl/wpapsk.html).
|-
|}
====Actual structure====
{| class="wikitable" border="1"
|-
! Offset
! Size
! Description
|-
| 0x0
| 0x2
| ?
|-
| 0x2
| 0x2
| [https://github.com/lammertb/libcrc/blob/v2.0/src/crc16.c#L43-L76 CRC-16 checksum] of the next 0x410 bytes.
|-
| 0x4
| 0x88
| First network structure. Only set if the network was set "normally", or was the last to be set using WPS during the session.
|-
| 0x8C
| 0x20
| Padding.
|-
| 0xAC
| 0x88
| Second network structure. Only set if the network was set using WPS, otherwise 0-filled.
|-
| 0x134
| 0x20C
| Padding.
|-
| 0x340
| 0x1
| Whether to automatically get the IP address (use DHCP) or not, defaults to 1.
|-
| 0x341
| 0x1
| Whether to automatically get the DNS or not, defaults to 1.
|-
| 0x342
| 0x2
| Padding ?
|-
| 0x344
| 0x4
| IP address, to use if 0x340 is false.
|-
| 0x348
| 0x4
| IP address of the gateway, to use if 0x340 is false.
|-
| 0x34C
| 0x4
| Subnetwork mask, to use if 0x340 is false.
|-
| 0x350
| 0x4
| IP address of the primary DNS , to use if 0x341 is false.
|-
| 0x354
| 0x4
| IP address of the secondary DNS, to use if 0x341 is false.
|-
| 0x358
| 0x4
| Always 0x01050000 ? Only set if the network was the last to be set during the session.
|-
| 0x35C
| 0x4
| IP address to use. Only set if the network was the last to be set during the session.
|-
| 0x360
| 0x6
| MAC address of the AP. Only set if the network was the last to be set during the session.
|-
| 0x366
| 0x1
| Channel. Only set if the network was the last to be set during the session.
|-
| 0x367
| 0x1
| Padding ? Only set if the network was the last to be set during the session.
|-
| 0x368
| 0x1
| Whether to use a proxy or not, defaults to 0.
|-
| 0x369
| 0x1
| Whether to use a basic authentication for the proxy, defaults to 0.
|-
| 0x36A
| 0x2
| Port to use for the proxy, defaults to 1.
|-
| 0x36C
| 0x30
| URL/address of the proxy, including a trailing nullbyte.
|-
| 0x39C
| 0x34
| Padding.
|-
| 0x3D0
| 0x20
| Username to use for basic authentication, including a trailing nullbyte.
|-
| 0x3F0
| 0x20
| Password to use for basic authentication, including a trailing nullbyte.
|-
| 0x410
| 0x2
| Padding ?
|-
| 0x412
| 0x2
| MTU value, defaults to 1400 and ranges between 576 and 1500, inclusive.
|-
| 0x414
| 0x7EC
| Padding.
|-
|}
===LCD display config===
There seems to be some sort of LCD display configuration stored in this cfg. When using the cfg-save from an Old3DS on a New3DS without formatting the cfg first, the bottom-screen display is somewhat off(which is fixed by formatting the cfg-save).
===Parental control Block 0x00100001===
{| class="wikitable" border="1"
|-
! Byte
! Size in bytes
! Description
|-
| 0x0
| 0xD
| Unknown.
|-
| 0xD
| 0x4
| PIN
|-
| 0x11
| 0x20
| Secret answer in UTF-16
|}
===Parental Control setting block 0xC0000===
{| class="wikitable" border="1"
|-
! Offset
! Size
! Description
|-
| 0x00
| 0x04
| [[#Parental Control restriction bitmask|Parental Control restriction bitmask]]
|-
| 0x0C
| 0x04
| Parental Controls PIN code
|}
====Parental Control restriction bitmask====
{| class="wikitable" border="1"
|-
! Bit
! Restriction name
|-
| 0
| Global Parental Controls enable
|-
| 3
| Sharing Images/Audio/Video/Long Text Data
|-
| 4
| Internet Browser
|-
| 5
| StreetPass
|-
| 6
| Friend Registration
|-
| 8
| eShop
|-
| 10
| Miiverse (view)
|-
| 11
| Miiverse (post)
|-
| 31
| "Child Online Privacy Protection" (see [[Cfg:GetRegionCanadaUSA|CFG:IsCoppacsSupported]])
|}
|}