Tiêu đề 3160712 - MPI 2022W.pdf ✅

2 and Don’t Walk). The signal lights are turned ON/OFF by the data bits of PORT1 and gives output as shown below, No Light Data Bits On Time 1 Red D1 40 Seconds 2 Green D3 30 Seconds 3 Yellow D5 10 Seconds 4 Walk D6 30 Seconds 5 Don't Walk D7 50 Seconds The traffic and pedestrian flows are in the same direction; the pedestrian should cross the road when the Green light is ON. Also write Delay subroutine to generate appropriate delay. Assume to turn ON Light, a “0” logic level required at corresponding data bits of the output port. Q.3 (a) What are the states of the Auxiliary Carry (AC), Carry (CY), sign(S) and parity (P) flags after executing the following 8085 program? MVI L, 5DH MVI A, 6BH ADD L 03 (b) Explain 8085 Programming model and classify instruction set on the basis of different addressing modes. 04 (c) 2100 LXI H, 1234H MVI A, 55H ADD M What is the size of ADD M instruction? Name the machine cycles. Draw machine cycle and T-state diagram and specify the content of address bus, data bus and control signals *RD, *WR, IO/*M and ALE signals and status signals S1 and S0 for every T states of ADD M instruction only. 07 OR Q.3 (a) What are the states of the Auxiliary Carry (AC), Carry (CY), sign(S) and parity (P) flags after executing the following 8085 program? MVI A, A9H MVI B, 57H ADD B ORA A 03 (b) Explain One byte, Two byte, Three byte and write short note on different types of instruction sets. 04 (c) Specify the addressing mode, required Machine cycles, T-States and function for following instructions : 1. MVI M, 45H 2. RAL LHLD 2300H 07 Q.4 (a) Difference between RLC and RAL instruction. 03 (b) Differentiate between maskable and non-maskable interrupts. 04 (c) What is a flag Register? Enlist and explain various types of flags. 07 OR Q.4 (a) Difference between RRC and RAR instruction. 03
3 (b) What is vectored and non-vectored interrupts? 04 (c) Describe the functions of (1) READY PIN (2) ALE (3) HOLD (4) X1 and X2 (5) SID and SOD (6) IO/M 22. (7) HLDA 07 Q.5 (a) List features of 80386 microprocessor. 03 (b) Draw block diagram of SUN SPARC architecture. 04 (c) Explain the internal Block diagram of 8259A. 07 OR Q.5 (a) List features of 80486 microprocessor. 03 (b) Draw logical block diagram of ARM 7 architecture. 04 (c) Explain the internal Block diagram of 8255A. 07 *************