8051 MICROCONTROLLER
ARCHITECTURE OF 8085
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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PSW
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DPTR
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ACCUMULATOR (A reg)
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Program Counter
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Detailed explanation-1: -Which of the following is an 8-bit register? Explanation: The registers, PSW, TCON and Accumulator are 8-bit registers.
Detailed explanation-2: -The Accumulator, as its name suggests, is used as a general register to accumulate the results of a large number of instructions. It can hold an 8-bit (1-byte) value and is the most versatile register the 8051 has due to the shear number of instructions that make use of the accumulator.
Detailed explanation-3: -These 8-bit registers are used for the storing the memory addresses that can be used to access internal and external data/code. The stack pointer (SP) in 8051 is an 8-bit register. The main purpose of SP is to access the stack. As it has 8-bits it can take values in the range 00 H to FF H.