INTRODUCTION TO MICROPEOCESSOR
MODEL OF MICROPROCESSOR
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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8
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16
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32
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64
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Detailed explanation-1: -11) How many registers can be utilized to write the programs by an effective selection of register bank in program status word (PSW)? ANSWER: (c) 32 12) Which operations are performed by stack pointer during its incremental phase?
Detailed explanation-2: -The 8051 contains two 16-bit registers: the program counter (PC) and the data pointer (DPTR). Each is used to hold the address of a byte in memory.
Detailed explanation-3: -The Data Pointer It is used by the 8051 to access external memory using the address indicated by DPTR. DPTR is the only 16-bit register available and is often used to store 2-byte values.
Detailed explanation-4: -8051 microcontroller has 2 registers, namely Register A and Register B. Register A serves as an accumulator while Register B functions as a general purpose register. These registers are used to store the output of mathematical and logical instructions.