Unit I - ESM MCQ

How many addressable 8-bit register are available in 8085 microprocessor?

• 7

• 8

• 9

• 6

How many bits does stack pointer has?

HL pair is also called as ____.

• temporary register

• special purpose register

• sixteen bit register

• data pointer

How many temporary registers are available in 8085 microprocessor?

• 2

• 3

• 4

• 6

In Flag register, D4 indicates _____

• Accumulator

• Dont care

• Carry

• Parity

In Flag register, how many don't acre bits are available?

• 2

• 3

• 4

• 1

___ is a register that stores the address of the next instruction to be executed

• Stack Pointer

• Program Counter

• Special purpose register

• Memory pointer

Is RST 4.5 an interrupt signal?

• Yes

• No

How many pins are associated with 8085 microprocessor?

• 30

• 32

• 40

• 14

How many address spaces are available in 8085 microprocessor?

• 65535

• 65536

• 536

• 0FFF