M.Sc. (Semester III) (CBCS) Examination Oct/Nov-2017
Electronics
ARM MICROCONTROLLER AND SYSTEM DESIGN
Day Date: Tuesday, 21-11-2017 Max. Marks: 70
Time: 02.30 PM to 05.00 PM
Instructions: Attempt five questions.
Q. and are compulsory.
Answer any three questions from Q.3 to Q.7.
Figures to the right indicates full marks.
Q.1 Choose the alternatives given below. 08
type of non-previleged processor mode is entered due to
raising of high priority of an interrupt.
User mode Fast interrupt mode
Interrupt mode Supervisor mode
instructions are called Program Status Register transfer instructions.
LDR, STR LDM, STM
MCR, MRC MSR, MRS
What are the values of the I and F bits in the Program Status Register
on reset?
F=0 F=1
F=1 F=0
The glue logic that connects the memory system to the AMBA bus logic
and control.
Main memory Reset
ARM core Glue logic
In LPC 2148, when internal reset is removed the processor begins
executing at
Address 0 Address 1
Address 5 Address 7
vector is called when you execute a SWI instruction.
Undefined instruction Reset
Software interrupt Perfetch abort
The memory map address is reserved for the vector table.
0xFFFFFFFF 0x000000AA
0x000000FF 0x00000000
register is accessible in all processor modes.
Link register Bank register
Unbanked register Current program register
State True or false. 06
The ARM core uses the Link register to monitor and control internal
operations.
All instructions in ARM are conditionally executed.
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Swap is a load- store instruction.
The ARM processors does not support to the byte address.
The CPSR has two interrupt mask bits, 7 and 6 to control the masking of
IRQ and FIQ, respectively.
User mode is non privileged mode.
Q.2 Attempt any two. 10
State and explain the nomenclature used ARM processor with example.
Compare ARM, Jazzal and Thumb instruction set.
Discuss the features of ARM LPC 2148.
Explain the clock and reset circuit of ARM LPC 2148. 04
Q.3 Describe the design of ARM microcontroller based system for temperature
measurement.
08
Write a note on I/O ports of ARM LPC 2148. 06
Q.4 Explain ARM bus architecture in brief. 08
Explain watch dog timer. 04
Q.5 Give the functions of following registers in ARM processor. 08
i. Stack Pointer
ii. Link register
iii. Program counter
Write a note on barrel shifting. 06
Q.6 Write embedded c program to interface LED to ARM microprocessor with
suitable diagram.
08
Write a note on I/O ports of ARM LPC 2148. 06
Q.7 Explain on-chip UART of ARM microcontroller. 08
Draw the block diagram of ARM LPC 2148. 06