CT#02: Microprocessor System Hardware Fundamental

Which of the following describe functions of a microprocessor within a microcomputer?

• A sequence of binary coded machine

  instructions to be executed

• A digital circuit which reads and

  execute a program stored in the

  memory.

• Stores programs and data

• Provide interface to exchange data

  with outside world

• Provide a channel to exchange data

  within microcomputer components.

Which microcomputer peripheral below exchange data with the user?

• Data bus

• USB port

• Microprocessor

• RAM/ROM

Which of the following is NOT the main function of a microprocessor?

• To receive machine code from

  memory and execute it.

• To perform Arithmetic and

  Logic (ALU) operations.

• To store the instruction in

  form of machine code.

• To control the other

  peripherals, e.g. RAM, ROM,

  I/O, hardware accelerator, etc

  in a microcomputer system.

Which of the following is NOT a bi-directional bus?

• Address bus

• Data bus

• Control bus

• I/O bus

What is the function of control bus of a μP?

• Transfer information that have been

  read from or to be written into a

  memory location or IO devices.

• Manages the information flow

  between μP components indicating

  whether the operation is a read or a

  write and ensuring that the operation

  happens at the right time.

• Transfer information that determine

  the location in memory that the

  processor will read data from or write

  data to.

Assume a microcontroller has 28-bit of address bus width. What will be the range of memory address?

• 0x0000 – 0xFFFF

• 0x0000000 – 0xFFFFFFF

• 0x00000000 – 0xFFFFFFFF

• 0x00000000 – 0x1FFFFFFF

What will be the memory address of the 2nd memory location, assume the memory address width is 32-bit and the data width is 8-bit?

• 0x00000000

• 0x00000001

• 0x00000002

• 0x00000004

What will be the memory address of the 2nd memory location, assume the memory address width is 32-bit and the data width is 32-bit?

• 0x00000000

• 0x00000001

• 0x00000002

• 0x00000004

Which of the following is INCORRECT for ROM?

• Non-volatile memory

• To store application programs

  and test routines

• Contents can be set by fixing it

  during manufacturing or

  “burning” it using a

  programming device

• No limit to number of writes the

  device can handle

Which of the following is INCORRECT for SRAM and DRAM comparison?

• SRAM is far more expensive

  than DRAM.

• SRAM consume more

  transistors than DRAM to store

  same size of data.

• SRAM have higher data

  reading/writing speed than

  DRAM.

• SRAM have more complicated

  interfacing circuit compared to

  DRAM.