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Much as with the GameCube, the MX "RTC-SRAM-ROM" chip sits on the EXI bus at address 0-1. http://hitmen.c02.at/files/yagcd/yagcd/chap10.html#sec10.3
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+[[File:Mx23l4005_10x.jpg|thumb|MX23L4005|Dieshot courtesy of Flylogic]]
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+= Font data =
+The only data contained in ROM on the Wii is two fontsets (one Latin, on Japanese). They are compressed using a proprietary format (Yay0), and generally only used in GameCube mode.
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+= RTC =
+Real-Time Clock (RTC) is 32-bit value, counting time intervals in seconds. To get the real time (seconds since January 1st, 2000 12am) add the counter bias saved in SRAM (or is it stored in NAND? {{check}})
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+= SRAM =
+The SRAM stores some miscellaneous settings that are only used in GameCube compatibility mode.
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The custom MX23L4005 chip used on the Nintendo Wii contains the GameCube font set, RTC, and power management functions. It is listed on [http://wiire.org WiiRe] as "U8: MX "E062674-MG" "MX23L4005-24C1" "RTC-RVL A" "2S08802" (RTC, TSOP28 18x8mm)".
The custom MX23L4005 chip used on the Nintendo Wii contains the GameCube font set, RTC, and power management functions. It is listed on [http://wiire.org WiiRe] as "U8: MX "E062674-MG" "MX23L4005-24C1" "RTC-RVL A" "2S08802" (RTC, TSOP28 18x8mm)".