What is the address of the first SFR (I/O Register)​

The Special Function Register (SFR) is the upper area of addressable memory, from address 0x80 to 0xFF.

Explanation:

The Special Function Register (SFR) is the upper area of addressable memory, from address 0x80 to 0xFF.

Reason -

A Special Function Register (or Special Purpose Register, or simply Special Register) is a register within a microprocessor, which controls or monitors various aspects of the microprocessor's function.

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