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Babu Madhav Institute of Information Technology, 2016 UTU Babu Madhav Institute of Information Technology, 2016 UTU Course: 060010901 – Embedded System Unit – 1 Introduction to Embedded System SHORT QUESTIONS: 1. What is an embedded system? 2. State the definition of embedded system given by Wayne Wolf. 3. State the full form of ASIP, ASIC. 4. What is a real time embedded system? 5. List the characteristics of a real time embedded system. 6. What is the purpose of the control unit? 7. What is the purpose of the execution unit? 8. List out the type of processors. 9. Give an example of multi core processor. 10. What is power dissipation? 11. Define non-recurring engineering costs. 12. What is the size of microcontrollers in medium sized embedded systems? LONG QUESTIONS: 1. Define embedded system. State the purpose of embedded system and describe briefly how an embedded system differs from a normal system. 2. Explain in detail the components on a normal pc and an embedded system. 3. State the difference between micro-processors and micro-controllers. Explain in detail the types of micro-processors. 4. List and explain the metrics of embedded system. 5. Describe in detail the challenges that can arise while developing embedded systems. MULTIPLE CHOICE QUESTION: 1. For a real time system, if the time limit for execution of the task is not achieved then select the appropriate result which can occur due to the failure: a. The system will only send alarms and do nothing b. The system's watch dog timer will be reset c. The system will have a high chance of being physically damaged d. The system will not enable the execution of concurrent processes 2. The term power dissipation means : a. Power should be consumed only while switching on the device b. Power should be consumed only within the given range of voltage c. There should be no power wastage at all d. There should be minimum power wastage Ms. Juhi Patel Page 1 Babu Madhav Institute of Information Technology, 2016 UTU 3. According to Wayne wolf an embedded system is a. Any device that does not include a programmable computer but it is a general purpose computer b. Any device or system system that has embedded software and computer- hardware, which makes it a system dedicated for an application or product or a part of a larger system. c. Any device that includes a programmable computer but is not itself intended to be a general purpose computer d. Any device or system that has embedded hardware and computer- software, which makes it a system dedicated for an application or product or a part of a larger system. 4. Choose the appropriate hardware components of an embedded system a. processor, i/o units,RTOS b. processor, timer,RTOS c. microprocessor,application software, power supply d. processor, timer, driver circuits 5. As a designer, Arjun created a chip with 16-32 bit microcontroller, 4k of ROM and an Airthmetic Logic Unit which he had customised. The chip could execute instructions speedily even if the instructions were very complex. Identify the kind of chip. a. The chip is a sophisticated embedded system belonging to the family of single purpose processors. b. The chip is a medium scale embedded system with a Princeton architecture supporting both RISC and CISC instruction set. c. The chip is a medium scale embedded system belonging to the family of application specific instruction set processors. d. The chip is a sophisticated embedded system with a Harvard Architecture supporting CISC instruction set. 6. An engineering cost means a. Initial cost of developing and manufacturing an embedded unit b. Initial cost of developing, debugging and testing an embedded unit c. One time manufacturing cost of an embedded unit d. One time Non recurring cost of developing/designing the embedded unit 7. Choose an appropriate example of a general purpose processor: a. Microcontroller b. 8086 microprocessor c. ARM processor d. Microprocessor Ms. Juhi Patel Page 2 Babu Madhav Institute of Information Technology, 2016 UTU 8. The characteristics of a normal system are : a. Environment constrained,limited voltage availability and executes many functionalities b. Executes limited functionalities, no time constraints and no environement constraints c. Provides input output facilities, no time constraints and no voltage constraints d. Executes multiple fucntionalities, designed according to physical area and within given memory boundaries 9. The pixel coprocessor of a digital camera is used for the purpose of a. Converting Analog images to digital images b. Rapidly displaying images c. Controlling the display of images on the camera’s liquid-crystal display device d. Compresses and decompresses images of the camera Unit 2 : Embedded System Architecture SHORT QUESTIONS: 1. State the initial value of stack pointer in 8051? 2. What is the purpose of Boot strap mode in Motorola 68HC11? 3. State the full form of RISC. 4. State the full from of CISC. 5. List the types of memory architecture available for embedded systems. 6. Give an example of RISC based microcontroller. 7. Give an example of CISC based microcontroller. 8. What is ARM? 9. What is a floating point register? LONG QUESTIONS: 1. State any two features of advanced microprocessors. 2. Give two points of difference between RISC and CISC.(Full form not valid) 3. Explain the features of the ARM Processor. 4. Explain in detail the general and advanced features of microprocessor. 5. Describe in detail the components which are not a part of 8051. 6. Write a short note on : 8051 instruction set. 7. Explain in detail the general features of advanced microprocessors. 8. Write a short note on memory architecture and its types. 9. Write a short note on instruction set and its types. 10. Explain in detail the features and modes of Motorola MC68hc11 microcontroller. 11. Explain in detail the architecture of Motorola MC68hc11 microcontroller without diagram. 12. Draw the diagram of Motorola MC68hc11 microcontroller. Ms. Juhi Patel Page 3 Babu Madhav Institute of Information Technology, 2016 UTU 13. The company Atmel Ltd. is a leading company which manufactures micro-controllers on a huge scale. Recently the designer’s team came up with a project to launch a new microcontroller design with the following features: o The microcontroller could execute instructions of only 16 bits. o It could execute complex instructions easily o It had a kind of memory which provided separate address allocations for both the program as well as data. o It had components that included watch dog timer, ADC, floating point registers and DMA. o The micro- controller could execute processing instructions in registers as well as memory. Based on the above given information, describe briefly (i) the memory architecture used (ii) instruction set used (iii) watch dog timer and (iv) state the purpose of using DMA. MULTIPLE CHOICE QUESTIONS: 1. Choose example of RISC machine a. Motorola 68hc11sp1 b. Motorola MC68hc11 - c. Motorola 68hc11 d. Motorola MC68hc11s1 2. What are the features of Motorola microcontroller ? a. 8-bit CISC microcontroller,A/D converter, synchronous and asynchronous communications channels b. 8-bit CISC microcontroller, low power consumption , high-performance operation - c. built-in EEPROM/ROM, RAM, digital I/O , PWM d. synchronous and asynchronous communications channels,high-performance operation, built-in EEPROM/ROM, RAM 3. What is the standard frequency choosen for XTAL while coding on embedded systems? a. 11.0551 Mhz b. 11.0989 Mhz c. 11.0592 Mhz d. 11.0973 Mhz 4. The motorola microprocessor operates in which modes? a. abort mode, user mode, single mode, expanded mode b. bootstrap mode, test mode, single mode, abort mode c. user mode, single mode, expanded mode, test mode d. test mode, single mode, bootstrap mode, expanded mode 5. Choose the features od digital signal processors. a. ASIP,includes MAC unit, harvard architecture based b. ASIC ,includes MAC unit , princeton architecture based c. ASIP, includes MAC unit, princeton architecture based. Ms. Juhi Patel Page 4 Babu Madhav Institute of Information Technology, 2016 UTU d. ASIC, includes MAC unit, harvard architecture based 6. Choose the hardware which are available in the 'classic version' of 8051 e. 12 MHz clock, CISC architecture ,DMA, processor status word PSW, 16 bit program counter ,watchdog timer f. 12 MHz clock, CISC architecture ,external interrupts, processor status word PSW, 16 bit program counter g. 12 MHz clock, RISC architecture ,DMA, processor status word PSW, 16 bit program counter ,watchdog timer h. 12 MHz clock, CISC architecture ,DMA, processor status word PSW,princeton architecture, 16 bit program counter ,watchdog timer 7. Choose the hardware which are not available in the 'classic version' of 8051 a. DMA controller, CISC architecture ,external interrupts, Pulse-width modulator b. DMA controller, floating point register ,pipeline, Pulse-width modulator c. DMA controller, CISC architecture ,external interrupts, Pulse-width modulator , pipeline d. Floating point register, CISC architecture ,external interrupts, pipeline 8. Which are the byte manipulation instructions? a. set, branch, RETI, swap b. set, complement, swap, MASK c. Clear, Complement, Swap, Rotate d. mask, rotate, clear, set 9. Choose the general features of advanced microprocessos. a. Branch Target Cache, Floating point register set, System register set b. Fixed Instruction Cycle Time, Stack pointer bits and initial reset value, Memory- Management Unit c. Fixed Instruction Cycle Time, Floating point register set, System register set d. Branch Target Cache, Floating point register set, Program counter and reset value 10. In motorola microcontroller, serial communication is carried out by which component? a. EXTAL b. Port E c. SPI & SCI d. Strobe and handshake I/O Ms. Juhi Patel Page 5 Babu Madhav Institute of Information Technology, 2016 UTU Ms. Juhi Patel Page 6 .
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