I/O PORTS

How many I/O ports

• 2

• 4

• 6

• 8

How many port pins available?

• 32

• 45

• 60

• 40

Which port has no alternate function?

• port 1

• port3

• port 4

• port 0

What is the value to be sent to configure the port 0 as output port?

• 00h

• ffh

• f8h

• 98h

What is the value to be sent to configure the port 1 as input port?

• 00H

• FFH

• 87H

• 0FH

which of the port is used as lower order address/data bus?

• port 0

• port 1

• port 2

• port 3

which of the port is used as higher order address bus?

• port 2

• port 0

• port 3

• port 1

On reset, all ports are configured as__________

• input

• output

• input and output

• either input or output

Which of the port require external pull up resistor?

• port 0

• port 1

• port 2

• port 3

Recall the flip flop used in each port pin

• D

• T

• F

• JK