Exam 1

Question 1

2^10

Answer 1

Kilo

Question 2

2^20

Answer 2

Mega

Question 3

2^30

Answer 3

Giga

Question 4

2^40

Answer 4

Tera

Question 5

2^50

Answer 5

Peta

Question 6

2^60

Answer 6

Exa

Question 7

2^70

Answer 7

Zetta

Question 8

2^80

Answer 8

Yotta

Question 9

What is a word

Answer 9

a collection of bits (101-three bit word)

Question 10

What is a bit

Answer 10

one digit. (100110-6 bits)

Question 11

What is a byte

Answer 11

8 bits

Question 12

Kilobyte

Answer 12

1000 bytes

Question 13

2^12 = ?

Answer 13

4k

Question 14

2^26

Answer 14

64M

Question 15

2^54

Answer 15

16P

Question 16

2^32

Answer 16

4G

Question 17

2^65

Answer 17

32E

Question 18

True or Flase, ARM does not manufacture microcontrollers. It only licenses its processor design to other chip manufacturers.

Answer 18

True

Question 19

In the Harvard bus architecture, data and instructions travel across the microcontroller

Answer 19

On their own buses

Question 20

The Cortex-M3 and the Cortex-M4 implement the _______ bus architecture.

Answer 20

Harvard

Question 21

The width of registers on the Cortex-M3 and the Cortex-M4 is _____ bits.

Answer 21

32

Question 22

Using Thumb instructions in your program can provide _____ code density (meaning your program will take up _____ space in ROM memory).

Answer 22

Higher, Less

Question 23

Registers R0-R7 are defined as the _____ general purpose registers.

Answer 23

Low

Question 24

In the Cortex-M3 and the Cortex-M4 register number _____ is reserved as the link register. (provide a numerical number)

Answer 24

14

Question 25

The _____ flag indicates overflow for unsigned numbers.

Answer 25

C (carry)

Question 26

In general, the SRAM is where variables defined by your program would reside.

Answer 26

True

Question 27

On the Cortex-M3 and the Cortex-M4 the code memory block starts at address location 0x0000.0000.

Answer 27

True

Question 28

On the Cortex-MF4 processor, a half-word is _____ bits long.

Answer 28

16

Question 29

The number of bits in a byte is machine-dependent.

Answer 29

False

Question 30

What is the value of the V condition code/flag after the following instructions are executed?
(Assume that all condition codes are 0 before the instructions are executed.)

MOV32 R3, #0x80000000
SUBS R0, R3, #1

Answer 30

1

Question 31

In the Cortex-M3 and the Cortex-M4 register number _____ is reserved for the program counter. (provide a numerical number)

Answer 31

15

Question 32

In the Cortex-M3 and the Cortex-M4 register number _____ is reserved for the stack pointer. (provide a numerical number)

Answer 32

13

Question 33

Both 16-bit and 32-bit instructions are included in the Thumb2 instruction set.

Answer 33

True

Question 34

A label preceding an assembly instruction is _______ and can be used to determine the memory address of an instruction in ROM.

Answer 34

Optional

Question 35

It is possible for an ADD instruction to have only 2 operands. (e.g., ADD R3, R1)

Answer 35

True

Question 36

To move data to a register from RAM or ROM, the _____ instruction is used.

Answer 36

Load

Question 37

The instruction “B name1” performs a(n) _______ jump/branch to the program label “name1.”LD

Answer 37

unconditional

Question 38

The _____ directive creates a new code or data section.

Answer 38

Area

Question 39

The assembler directives are executed during the assembling process at compilation time, not at runtime (when your programming is running).

Answer 39

True

Question 40

Write a single line of assembly code using the EQU directive to equate the label HAT with the number 0xF6.

Answer 40

HAT EQU 0xF6

Question 41

Two attributes of secondary memory are… (compared to primary memory)

Answer 41

High Access time, relatively large amount of space.

Question 42

ARM Holdings designs processors but does not manufacture them.

Answer 42

True

Question 43

Which of the following factors should be taken into account when designing an embedded system? (select all that apply)

system size and weight
speed of execution
performance accuracy
power consumption

Answer 43

system size and weight speed of execution performance accuracy power consumption

Question 44

Addresses are passed to devices outside of the core processor via the _____ bus.

Answer 44

Address

Question 45

_____ RAM is the most commonly used type of RAM.

static
dynamic

Answer 45

dynamic

Question 46

_____ RAM requires refreshing of the data because the stored charge is lost over time.

Answer 46

Dynamic

Question 47

Every program instruction has an associated operation (e.g., subtract, read, write, logical AND, compare) that has a unique code telling the processor what action to take. That unique code is called a(n) _____.

Answer 47

Opcode

Question 48

Using a CISC processor makes sense when the memory system is much slower than the processor.

Answer 48

True

Question 49

Which of the following memory devices are examples of ROM? (select all correct answers)

Static RAM
(Electrically Erasable PROM)
Flash Memory
Erasable PROM
Dynamic RAM
Programmable ROM

Answer 49

Electrically Erasable
PROM, Flash Memory, Erasable PROM, Programmable ROM