Difference between revisions of "Developer Manual/Super IO"

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In order to access any configuration register you'll have to use two special registers:
In order to access any configuration register you'll have to use two special registers:
* Index register (reg 0x2E or 0x4E, depending on the chip)
* Index register (I/O port 0x2E or 0x4E, depending on the chip)
* Data register (reg 0x2F or 0x4F, obtained by adding 1 to the Index register)
* Data register (I/O port 0x2F or 0x4F, obtained by adding 1 to the Index register)


The Index register is used to specify which of the configuration registers you want to access.
The Index register is used to specify which of the configuration registers you want to access.

Revision as of 12:56, 3 March 2016