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Microprocessor

Microprocessor
Of the following circuits, the one which involves storage is

Decoder
RS Latch
Nand
Mux

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Microprocessor
Consider the following registers: 1. Accumulator and flag register 2. B and C register 3. D and E register 4. H and L register Which of these 8-bit registers of 8085 microprocessor can be paired together to make a 16-bit register?

 1, 2 and 3
 1, 2 and 4
 2, 3 and 4
 1, 3 and 4

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Microprocessor
SPHL instruction copies the content of H-L register pair to the _________.

 D-E
 Stack Pointer
 PSW
 B-C

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Microprocessor
Identify the programmable interval timer from the following

 8252
 8279
 8275
 8253

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Microprocessor
Inintel 8085A microprocessor ALE signal is made high to

 To latch data D0-D7 from data bus
 Enable the data bus to be used as low order address bus
 To disable data bus
 To achieve all the functions listed above

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Microprocessor
In 8085 which addressing mode is also called inherent addressing?

Immediate
Direct
Implicit
Register

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