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| − | The DSi has an I2C bus. It is suspected that there is more than one device connected to this bus.
| + | #REDIRECT [[I2C Bus]] |
| − | One of the known connected devices is another power management interface, which can be used to reset the DSi to the system menu.
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| − | It is also rumored that the camera can be controlled through the I2C bus.
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| − | | |
| − | | |
| − | === ARM7 IO REGISTERS ===
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| − | {| class="wikitable" border="1"
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| − | |-
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| − | ! ADDRESS
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| − | ! WIDTH (bytes)
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| − | ! NAME
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| − | |-
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| − | | 0x04004500
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| − | | 1
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| − | | REG_I2CDATA
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| − | |-
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| − | | 0x04004501
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| − | | 1
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| − | | REG_I2CCNT
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| − | |}
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| − | | |
| − |
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| − | {| class="wikitable" border="1"
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| − | |+ '''REG_I2CCNT'''
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| − | |-
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| − | ! BIT
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| − | ! DESCRIPTION
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| − | |-
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| − | | 0
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| − | | ?
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| − | |-
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| − | | 1
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| − | | More data coming?
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| − | |-
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| − | | 2-5
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| − | | ?
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| − | |-
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| − | | 6
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| − | | Interrupt enable?
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| − | |-
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| − | | 7
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| − | | Enable?
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| − | |}
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| − | | |
| − | === Interfacing the I2C bus ===
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| − | Coming soon..
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