Answer:
The Special Function Register (SFR) is the upper area of addressable memory, from address 0x80 to 0xFF.
Step-by-step 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.