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Document more interrupts from MCU_FIRM disassembly
Line 337:
Line 337:
bit15: ??? (Power Management related?)+Nonmaskable interrupts+ bit24: ??? (???)+|-
−| 0x3C
−| s
−| ro
−| ???
| rw
| rw
| Interrupt mask for register 0x10 (0=enabled,1=disabled)
| Interrupt mask for register 0x10 (0=enabled,1=disabled)
− bit00: Power button press
+ bit00: Power button press (for 27 "ticks")
− bit01: Power button held (the 3DS turns off regardless after a fixed time)
+ bit01: Power button held (for 375 "ticks"; the 3DS turns off regardless after a fixed time)
− bit02: HOME button press
+ bit02: HOME button press (for 5 "ticks")
bit03: HOME button release
bit03: HOME button release
bit04: WiFi switch button
bit04: WiFi switch button
bit05: Shell close
bit05: Shell close
bit06: Shell open
bit06: Shell open
− bit07: Fatal hardware condition([[Services#Notifications|?]])
+ bit07: Fatal hardware condition([[Services#Notifications|?]]) (sent when the MCU gets reset by the Watchdog timer)
bit08: Charger removed
bit08: Charger removed
bit09: Charger plugged in
bit09: Charger plugged in
− bit10: ??? (Power Management related?)
+ bit10: RTC alarm (when some conditions are met it's sent when the current day and month and year matches the current RTC time)
− bit11: ??? (HID related)
+ bit11: ??? (accelerometer related)
bit12: HID update
bit12: HID update
bit13: Battery dead(?)
bit13: Battery dead(?)
− bit14: ??? (Power Management related?)
+ bit14: Battery stop charging(?) (independent of charger state)
− bit15: Battery start charging(?)
−Nonmaskable(?) interrupts
+ bit16: ???
+ bit17: ??? (opposite even for bit16)
bit22: Volume slider position change
bit22: Volume slider position change
− bit23: ??? Register 0x0E update
− bit25: ??? (???)
+ bit24: ??? (the off event for below bit)
+ bit25: ??? (triggered when something related to the GPU is turned on)
bit26: ??? (???)
bit26: ??? (???)
bit27: ??? (???)
bit27: ??? (???)
bit28: ??? (???)
bit28: ??? (???)
− bit29: ??? (???)
+ bit29: Battery percentage status change (triggered at 10%, 5%, and 0% while discharging)
bit30: bit set by mcu sysmodule
bit30: bit set by mcu sysmodule
bit31: bit set by mcu sysmodule
bit31: bit set by mcu sysmodule
Line 485:
Line 488:
|-
|-
| 0x38
| 0x38
−- 0x3A
+- 0x3C
| s
| s
| rw
| rw
| RTC alarm registers
| RTC alarm registers
− byte 0: minutes
+ byte 0: minutes(???)
− byte 1: hours
+ byte 1: hours(???)
− byte 2: week
+ byte 2: day
+ byte 3: month
+ byte 4: year
|-
|-
| 0x3B
| 0x3B
Line 497:
Line 502:
| rw
| rw
| Could be used on very old MCU_FIRM versions to upload [[MCU_Services#MCU_firmware_versions|MCU firmware]] if some conditions are met.
| Could be used on very old MCU_FIRM versions to upload [[MCU_Services#MCU_firmware_versions|MCU firmware]] if some conditions are met.
−|-
|-
| 0x3D
| 0x3D