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Microprocessor

Microprocessor
When the write enable input is not asserted, the gated D latch _________ its output.

Complements
Clears
Can not change
Sets

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Microprocessor
Number of Hex digits needed to represent the 20-bit address of a memory location are

 4
 20
 5
 16

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Microprocessor
The 8085 microprocessor uses a crystal of frequency 6.25 Mhz. The T-state value is

 960ns
 320ns
 1280ns
 640ns

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Microprocessor
The execution of RST n instruction causes the stack pointer to

 decrement by two
None of these
 increment by two
 remain unaffected

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Microprocessor
The relation among IC (Instruction Cycle), FC (Fetch cycle) and EC (Execute Cycle) is

 IC = FC - EC
 IC = FC + EC
 EC = IC + FC
 IC = FC + 2EC

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Microprocessor
Each instruction in an assembly language program has the following fields 1. Label field 2. Mnemonic field 3. Operand field 4. Comment field What are the correct sequence of these fields?

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

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