Acnodes FES 6841 - Manual (Page 33)

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FES6841
Fanless Embedded Controller comes with
Intel Atom N270 Processor
FES6841
Fanless Embedded Controller comes with
Intel Atom N270 Processor
(3) Exit the W83627EHG config Mode. Undesired result may occur if the config Mode is not
exited normally.
(1) Enter the W83627EHG config Mode
To enter the W83627EHG config Mode, two special I/O write operations are to be performed
during Wait for Key state. To ensure the initial state of the key-check logic, it is necessary to
perform two write operations to the Special Address port (2EH). The different enter keys are
provided to select configuration ports (2Eh/2Fh) of the next step.
(2) Modify the Data of the Registers
All configuration registers can be accessed after entering the config
Mode. Before accessing a selected register, the content of Index
07h must be changed to the LDN to which the register belongs, except some Global registers.
(3) Exit the W83627EHG config Mode
The exit key is provided to select configuration ports (2Eh/2Fh) of the next step.