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Microprocessor

Microprocessor
CALL instruction is a ______ instruction.

 3 bytes
 1 bytes
 2 bytes
 4 bytes

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Microprocessor
________is the only non-vectored interrupt in 8085 microprocessor.

 TRAP
 RST 5.5
 RST 7
 INTR

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Microprocessor
The length of bus cycle in 8086/8088 is four clock cycles, T1, T2, T3, T4 and an indeterminate number of wait state clock cycles denoted by Tw. The wait states are always inserted between

 T1 & T2
 T2 & T3
 T4 & T1
 T3 & T4

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Microprocessor
S0 and S1 pins are used for

 acknowledging the interrupt
 serial communication
 indicating the processor’s status
None of these

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Microprocessor
________used to implement the hardware interrupts (RST 7.5, RST 6.5, RST 5.5) by setting various bits to form masks or generate output data via the Serial Output Data (SOD) line.

 EI
 RIM
 SIM
 DI

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

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

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