PIC Microcontroller Flashcards

1
Q

What does PIC stands for?

A

Peripheral Interface Controller

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2
Q

Origin of PIC

A

Harvard Architecture for DAPRA Project

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3
Q

PIC has High-power consumption
True / False

A

False

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4
Q

What is the operating voltage of PIC?

A

2.0 – 5.0 V

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5
Q

What are the 3 modules of PIC

A

Capture, Compare, PWM modules

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6
Q

What are the 5 I/O Ports of PIC?

A

A, B, C, D, and E

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7
Q

Embedded processing is non-pervasive
True/False

A

False

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8
Q

Electronic intelligence in is everyday products
True/False

A

True

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9
Q

What are the 3 Company Philosophy in PIC

A
  • Have products that fit the problem
  • Many systems can be automated using 8-bit microcontrollers
  • Much of product line is 8-bit
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10
Q

Give the 5 Reasons for Pervasiveness in PIC

A
  • Competitive pressure
  • Expanded functionality of products
  • Provide differentiation in product from that of competitor
  • Cost competitive integrated solution
  • Allow creation of new classes of products
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11
Q

What are the 5 features of Microcontroller

A
  • CPU – processing unit
  • Non-volatile program memory
  • Re-settable non-volatile data memory (EEPROM)
  • RAM for data storage
  • Direct support for various input/output
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12
Q

Give at least 3 Typical Applications of PIC

A
  • Automotive air bag systems
  • Remote control
  • Handheld tools
  • Appliances – coffee pot, mixer, stove, refrigerator, dish washer, washer, dryer
  • Major home systems – heating and cooling
  • Cordless phones and cell phones
  • Security systems
  • TV, DVD player/recorder, DVR, PVR
  • Sound system
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13
Q

4-bit is very expensive
True/False

A

False

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14
Q

8-bit is still very cheap – often ~$1.00 per chip
True/False

A

True

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15
Q

What are the 3 factors in design decision?

A

-Evaluation of requirements
-Chip capability
-Cost

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16
Q

Give at least 5 Microcontroller Choice Parameters

A
  • Number of I/O pins
  • Amount of program and data memory
  • Speed
  • Timer Resources
  • Interrupt control
  • Robustness
  • Error recovery – watchdog timers
  • Power, I/O expansion, math support
17
Q

In Harvard Architecture, nearly all instructions are single instruction word instructions.
How many fetch per instruction?

A

1

18
Q

In Harvard Architecture, there are 2 separate buses.
What are the 2 for?

A

One for instructions and one for data

19
Q

On architectures such as the HP during the normal flow of a program’s execution on 8 to 12 instructions are executed after a branch occurs.
True/False

A

False. 12 instructions are executed before a branch occurs.

20
Q

Modern architectures cannot easily achieve above 90% correct branch prediction.
True/False

A

False

21
Q

Frequency of Branches can be factored into actual _____ of the processor

A

speed

22
Q

What type of memory does Program Memory use?

A

FLASH Memory