Advance Microcontroller — Summer 2021

Explain the difference between Von-Neumann and Harvard architecture.

Compare RISC and CISC philosophy. Explain the features of pure RISC systems.

Explain ARM7TDMI programmer’s model. Explain all registers of ARM7TDMI architecture.

Explain barrel shifter instructions LSL, LSR and ASR with example.

Explain following instructions with at least one example for each (1) BIC (2) EOR (3) TEQ (4) RSB

Explain concept of pipeline used in ARM processor. Explain three stage pipelining used in ARM7TDMI processor.

Discuss ARM core extensions and architecture revisions. List at least two applications for Cortex A, Cortex Mand Cortex Rprocessors.

What is conditional execution? State the advantage of conditional execution over branch operation with suitable example.

Explain the significance of program status registers CPSR and SPSR. Why two program status registers are used in ARM processors?

State ARM Processor Modes and explain each with suitable example.

State and explain the difference between ARM state and Thumb state?

What are the exceptions in ARM processor? Explain process of exception entry and exception return.

Explain following instructions of ARM7TDMI processor.

LDR R0, [R2] (ii) STR R0, [R2,#4] (iii) LDRB R0, [R2], #1 (iv) LDMIA R0!, {R2-R6}

What are the advantages and disadvantages of assembly language programming compared to Cprogramming?

Write ARM assembly language program for HEX number to ASCII conversion. Assume HEX number is stored in register R1.

State and explain Registers related to General Purpose Input Output (GPIO) configuration for ARM Based microcontroller. Also write a Cprogram to configure Port 0 as input port and Port 1 as output port.

What are assembler directives? Explain any three assembler directives used for ARM assembly programming.

Write ARM assembly language program for sorting signed 8-bit binary numbers stored in RAM locations starting from 0x40000000.

Draw interfacing diagram to interface push-button switch at port pin P1.0 and common anode seven segment display with port pins P0.0 to P0.7. Write C program to read switch and display number of seven segment display. Initially 0 should be displayed. When switch is pressed, number should increase (UP counting).

Explain the function of registers associated with Timers of ARM based microcontroller.

Discuss techniques for optimization of memory needs while writing Cprogram for ARM based microcontroller.

Explain Advance Microprocessor Bus architecture (AMBA) and discuss its special features.

What is cache performance? On which factor it depends?

Explain I2C and SPI protocols.

Explain the concept of Virtual Memory for advance processor-based system. Page 2 of