Exams › GATE › Technical

For the 8085 microprocessor, the interfacing circuit to input 8-bit digital data (D I0 - D I7) from an external device is shown in the figure. The instruction for correct data transfer is

1. MVI A, F8H
2. IN F8H
3. OUT F8H
4. LDA F8F8H

Correct answer: IN F8H

Solution

The instruction 'IN F8H' is used to read data from an input port in the 8085 microprocessor, allowing it to receive the 8-bit digital data from the external device connected to the specified port address.

Related GATE Technical questions

• If fixed positive charges are present in the gate oxide of an n-channel enhancement type MOSFET, it will lead to
• In the ac equivalent circuit shown in the figure, if i_in is the input current and R_F is very large, the type of feedback is
• In the following circuit employing pass transistor logic, all NMOS transistors are identical with a threshold voltage of 1 V. Ignoring the body-effect, the output voltages at P, Q and R are
• In a code-division multiple access (CDMA) system with N = 8 chips, the maximum number of users who can be assigned mutually orthogonal signature sequences is _______.
• The capacity of a Binary Symmetric Channel (BSC) with cross-over probability 0.5 is _______.
• The force on a point charge +q kept at a distance d from the surface of an infinite grounded metal plate in a medium of permittivity ε is

⚔️ Practice GATE Technical free + battle 1v1 →