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I hear the terms I/O area and Memory Area frequently from teammates in my project( PCIe Gigabit ethernet driver development in WEC7) . I have no idea about it . Please knowledge me about it .

skanda93
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1 Answers1

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The difference between I/O and Memory addressing is outlined in this superuser answer.

I/O Areas are accessible only through special CPU instructions, whereas Memory Areas can be mapped into the kernel's address space and accessed directly.

Community
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Carsten Hansen
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