8051 MICROCONTROLLER
ARCHITECTURE OF 8085
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Program state word register
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Progress state word register
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Progress status word register
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Program status word register
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Detailed explanation-1: -The program status word (PSW) is a register that performs the function of a status register and program counter, and sometimes more. The term is also applied to a copy of the PSW in storage.
Detailed explanation-2: -The Program Status Word (PSW) contains status bits that reflect the current CPU state. The 8051 variants provide one special function register called PSW with this status information.
Detailed explanation-3: -In 8085 microprocessors, PSW stands for Program Status word. it is a 16-bit word, a combination of contents of the 8-bit flag register and the contents of an 8-bit Accumulator register.
Detailed explanation-4: -Concept: Program status word or PSW is a collection of all status bit conditions in the CPU at some time. It includes the status bits from the last ALU operation and it specifies the interrupts that are allowed to occur and whether the CPU is operating in that supervisor or user mode.