102
edits
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matching chip?
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== General ==
== General ==
−The Wii U added a new chip to assist with power management alongside the [[Hardware/RTC|RTC]], labeled "SMC". The SMC is responsible for managing disc drive power/eject, power LED patterns, wireless resets, regulator enable/PGOOD monitoring, and possibly other unknown functionality. Known part numbers include 1224EE429 301, 1225EE423 301.
+The Wii U added a new chip to assist with power management alongside the [[Hardware/RTC|RTC]], labeled "SMC". The SMC is responsible for managing disc drive power/eject, power LED patterns, wireless resets, regulator enable/PGOOD monitoring, and possibly other unknown functionality. Known part numbers include 1224EE429 301, 1225EE423 301. Chip is likely related to the RL78/G13, since their pinouts are similar (reset on pin2, i2c pins match, REGC pin matches, "EE" = 40pin 64KB ROM, etc).
== Communication ==
== Communication ==
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|-
|-
| 01
| 01
−| ?
+| P40/TOOL0?
| TP146, to RTC and Bluetooth(?)
| TP146, to RTC and Bluetooth(?)
|-
|-
| 02
| 02
−| nRST
+| nRESET
| TP145, resets SMC when measured
| TP145, resets SMC when measured
|-
|-
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|-
|-
| 05
| 05
−| ?
+| INTP0?
| Disconnected
| Disconnected
|-
|-
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|-
|-
| 08
| 08
−| VREF?
+| REGC
| Connected to GND via C137
| Connected to GND via C137
|-
|-
| 09
| 09
−| GND
+| GND/Vss
|
|
|-
|-
| 10
| 10
−| 3v3?
+| Vdd/3v3
| Decoupling cap C73
| Decoupling cap C73
|-
|-
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|-
|-
| 30
| 30
−| 3v3?
+| Vdd/3v3?
| Decoupling cap C73
| Decoupling cap C73
|-
|-
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| 39
| 39
| LED_B
| LED_B
−| To transistor, LED related?
+| to transistor lead
|-
|-
| 40
| 40
| LED_R
| LED_R
−| TP66, TP2000, to faceplate? Pulses at 100Hz?
+| TP66, TP2000, to faceplate. PWM at 100Hz?
|}
|}