MEMORY ORGANIZATION IN 8051
ARCHITECTURE OF 8085
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Special function registers
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Select first registers
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stand for register
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None of these
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Detailed explanation-1: -The Special Function Register (SFR) is the upper area of addressable memory, from address 0x80 to 0xFF. This area of memory can’t be used for data or program storage, but is instead a series of memory-mapped ports and registers.
Detailed explanation-2: -To monitors or control the various functions within a microcontroller like control different hardware peripherals like Timers, Serial Port, I/O Ports etc. Here we use some special registers in 8051 microcontroller called Special Function Register (SRF) (or Special Purpose Register, or simply Special Register).
Detailed explanation-3: -The TMOD or Timer Mode register or SFR is used to set the Operating Modes of the Timers T0 and T1. The lower four bits are used to configure Timer0 and the higher four bits are used to configure Timer1.