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CPU & Chipset fuction

Last response: in CPUs
August 18, 2011 10:00:24 PM

Are there any input or output functions are controlled entirely by the CPU without the chipset?

More about : cpu chipset fuction

a b à CPUs
August 19, 2011 12:05:01 AM

You need to be more specific in your question but I will answer the best I can.

On a general purpose processor like a PIC it has built in IO ports that can be used as you will, but on a PC processor as made by Intel and AMD there are no general purpose ports and you require address decoding and data latching circuit to make a port which is included in the chipset to make the serial port, parallel port, USB, SATA, IDE, etc.
August 19, 2011 1:24:58 AM

So even a keyboard entry, that has its own interrupt, in a Core-i7-2600k CPU computer, requires some function(s) of the chipset to be executed?
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a b à CPUs
August 19, 2011 2:04:08 AM

In the old days the keyboard used to require a separate chip to decode the output of the keyboard but nowadays it is all done in the southbridge.
August 19, 2011 3:17:59 AM

Best answer selected by ramcooker.