UIC EEPROM structure

The UIC's EEPROM occupies address range 0x1000..0x17FF. (TODO: maybe it occupies more?)

The first 256 bytes are used internally, while the rest is used for user data storage.

https://bitbucket.org/memahaxx/libdrc/src/master/src/device-config.cpp for more info.

Address	Length	Description
0x1010	2	Firmware install status – set to A5 5A when a firmware is installed
0x1012	1	??
0x1013	1	LED status when no firmware installed – 1=red 2=amber 0/x=none
–	–	–
0x1101	32	Wifi SSID (WiiUxxxx…)
0x1121	1	Wifi SSID length
0x1122	1	Wifi auth type 0 = open 1 = shared key (?)
0x1123	1	Wifi auth mode 0x00 = disabled 0x01 = none 0x04 = WPA 0x80 = WPA2
0x1124	1	Wifi encryption 0 = none 1 = WEP 2 = TKIP 3 = AES
0x1125	64	Wifi passphrase
0x1165	1	Wifi passphrase length
0x1166	2	Wifi country code
0x116B	2	CRC16 over 0x1101..0x116A
0x116D	16	WoWL key
0x117F	6	WoWL MAC
0x1187	1	WoWL setting (?)
0x118A	1	Last wifi channel
–	–	–
0x11FD	1	Layout of page 1 (should be 3)
0x11FE	2	CRC16 over 0x11FD
–	–	–
0x1200	1	Board info 1
0x1201	2	CRC16 over 0x1200
0x1203	1	Region info 1
0x1204	2	CRC16 over 0x1203
0x1206	1	Board config 1
0x1207	2	CRC16 over 0x1206
0x121A	2	Volume calibration 1
0x121C	2	CRC16 over 0x121A..0x121B
0x121E	12	Accelerometer calibration 2
0x122A	2	CRC16 over 0x121E..0x1229
0x122C	19	Gyroscope calibration 1
0x123F	2	CRC16 over 0x122C..0x123E
0x1253	16	Touchscreen calibration 2
0x1263	2	CRC16 over 0x1253..0x1262
0x1265	4	Service version 2
0x1269	2	CRC16 over 0x1265..0x1268
–	–	–
0x1280	1	Board info 2
0x1281	2	CRC16 over 0x1280
0x1283	1	Region info 2
0x1284	2	CRC16 over 0x1283
0x1286	1	Board config 2
0x1287	2	CRC16 over 0x1286
0x129A	2	Volume calibration 2
0x129C	2	CRC16 over 0x129A..0x129B
0x129E	12	Accelerometer calibration 3
0x12AA	2	CRC16 over 0x129E..0x12A9
0x12AC	19	Gyroscope calibration 1
0x12BF	2	CRC16 over 0x12AC..0x12BE
0x12D3	16	Touchscreen calibration 3
0x12E3	2	CRC16 over 0x12D3..0x12E2
0x12E5	4	Service version 3
0x12E9	2	CRC16 over 0x12E5..0x12E8
–	–	–
0x12FD	1	Layout of page 2 (should be 5)
0x12FE	2	CRC16 over 0x12FD
–	–	–
0x1300	1	Language
0x1301	2	CRC16 over 0x1300
0x1303	1	Opening screen index
0x1304	2	CRC16 over 0x1303
0x1306	1	Development mode setting
0x1307	2	CRC16 over 0x1306
0x1313	12	Accelerometer calibration 1
0x131F	2	CRC16 over 0x1313..0x131E
0x1344	16	Touchscreen calibration 1
0x1354	2	CRC16 over 0x1344..0x1353
0x1356	1	Language bank index
0x1357	2	CRC16 over 0x1356
0x1359	1	Language version (together with CRC16 bytes)
0x135C	4	Remote control data version
0x1360	2	CRC16 over 0x135C
0x1362	4	Service version 1
0x1366	2	CRC16 over 0x1362..0x1365
0x1368	4	Opening screen 1 version
0x136C	2	CRC16 over 0x1368..0x136B
0x136E	4	Opening screen 2 version
0x1372	2	CRC16 over 0x136E..0x1371
0x1374	1	Initial boot flag (?)
0x1375	2	CRC16 over 0x1374
0x1377	13	LCD brightness levels
0x1384	2	CRC16 over 0x1377..0x1383
0x1386	1	LCD brightness setting
0x1387	2	CRC16 over 0x1386
0x1389	5	Remote control ID 1
0x138E	5	Remote control ID 2
0x1393	2	CRC16 over 0x1389..0x1392
0x1396	1	Airwave setting
0x1397	2	CRC16 over 0x1396
–	–	–
0x13FD	1	Layout of page 3 (should be 4)
0x13FE	2	CRC16 over 0x13FD
–	–	–
0x1400	256	???
0x1500	2	CRC16 over 0x1400-0x14FF
–	–	–
0x1580	256	???
0x1680	2	CRC16 over 0x1580-0x167F

Data is stored in little-endian order.

When multiple regions exist for a given information (for example, board info), the first region with a correct CRC16 is selected.

Board info

Bit 0-3 of the board info value are the main version, while bit 4-7 are the sub version.

Main version:

0 = DK1
1 = EP_DK2
2 = DP1
3 = DP2
4 = DK3
5 = DK4
6 = DP3
7 = DK5
8 = DP4
9 = DKMP
10 = DP5
11 = MASS
12 = DKMP2
13 = DRC_I

Sub version:

0 = DK1_EP_DK2
1 = DP1_DK3
2 = DK4
3 = DP3
4 = DK5
5 = DP4
6 = DKMP
7 = DP5
8 = MASS
9 = DKMP2
10 = DRC_I

Region info

0 = Japan
1 = North America
2 = Europe
3 = China
4 = South Korea
5 = Taiwan
6 = Australia

Board config

Value is 0x15 for retail boards.

If bit0-1 are any value other than 1, the gamepad will enter service mode upon boot.

Language

(0-3 = America, 4-11 = Europe)

0 = English
1 = French
2 = Spanish
3 = Portuguese
4 = English
5 = French
6 = Spanish
7 = Portuguese
8 = Dutch
9 = Italian
10 = German
11 = Russian
12 = Japanese
13 = Chinese (simplified)
14 = Korean
15 = Chinese (traditional)

Volume calibration

Offset	Length	Description
0x00	1	Minimum volume
0x01	1	Maximum volume

The minimum and maximum values are used to cap the reading from the volume slider within an acceptable range.

TODO: detail how that reading is converted to the final volume setting passed to the audio amplifier

Gyroscope calibration

Offset	Length	Description
0x00	3	Zero X
0x03	3	Zero Y
0x06	3	Zero Z
0x09	3	Rotation X
0x0C	3	Rotation Y
0x0F	3	Rotation Z
0x12	1	Speed

Accelerometer calibration

Offset	Length	Description
0x00	2	0G X
0x02	2	0G Y
0x04	2	0G Z
0x06	2	1G X
0x08	2	1G Y
0x0A	2	1G Z

Touchscreen calibration

Offset	Length	Description
0x00	2	Point 1 screen X
0x02	2	Point 1 screen Y
0x04	2	Point 2 screen X
0x06	2	Point 2 screen Y
0x08	2	Point 1 raw X
0x0A	2	Point 1 raw Y
0x0C	2	Point 2 raw X
0x0E	2	Point 2 raw Y

Raw coordinates are 12-bit TSC readings, while screen coordinates are their corresponding values in pixels.

Observed screen coordinates are: 53,30 802,451

LCD brightness levels

Offset	Length	Description
0x00	1	Level 0 brightness level (setting A)
0x01	1	Level 0 frequency (setting B)
0x02	1	Level 1 brightness level
0x03	1	Level 1 frequency
0x04	1	Level 2 brightness level
0x05	1	Level 2 frequency
0x06	1	Level 3 brightness level
0x07	1	Level 3 frequency
0x08	1	Level 4 brightness level
0x09	1	Level 4 frequency
0x0A	1	Level 5 brightness level
0x0B	1	Level 5 frequency
0x0C	1	Threshold level

This table maps 6 predefined brightness levels to their adequate LCD parameters. See the LCD page for information as to how these settings are used.