MICROPROCESSOR AND MICROCONTROLLER

8051 MICROCONTROLLER

ARCHITECTURE OF 8085

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Is the address bus an eight bit bus?
A
True
B
False
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -A computer system has an address bus with 8 parallel lines. This means that the address bus width is 8 bits. The capacity of each memory location is 16 bits (i.e. it corresponds to a word with a length of 16 bits).

Detailed explanation-2: -The Intel 8088 microprocessor is a variant of the Intel 8086. Introduced on July 1, 1979, the 8088 had an eight-bit external data bus instead of the 16-bit bus of the 8086.

Detailed explanation-3: -In 8085 microprocessor, Address bus is of 16 bits (A0-A15) and can transfer maximum 16 bit address and hence can address 65, 536 different memory locations. This bus is multiplexed with 8 bit data bus. So, the most significant bits (MSB) of address goes through Address bus and LSB goes through multiplexed data bus.

There is 1 question to complete.