UNIT 7 MPMC

EA stands for _______

• External Access

• Enable Access

• External Address

• Enable Address

8051 is a ______ pin controller IC.

• 28

• 20

• 40

• 10

The size of data bus in 8051 is ____.

• 16 bit

• 4bit

• 8 bit

• 20 bit

The size of address bus in 8051 is ____.

• 16 bit

• 8bit

• 4bit

• 20 bit

The accumulator size in 8051 is _____ bit.

• 16 bit

• 4bit

• 20 bit

• 8 bit

The size of DPTR in 8051 is ____.

• 16 bit

• 13bit

• 20 bit

• 8 bit

The program counter in 8051 is ____ bit wide.

• 13bit

• 8 bit

• 16 bit

• 20 bit

Stack pointer size in 8051 is _______.

• 13bit

• 8 bit

• 16 bit

• 20 bit

PSW stands for ____.

• Program Store Word

• Program Status Word

• Page Statue Word

• Page Store Word

If EA=VCC in 8051 ,then ________

• Both Memory is Selected

• External Memory is Selected

• Both Memory is not Selected

• Internal Memory is Selected