Questions

What is the address of 8085 microprocessor?

What is the address of 8085 microprocessor?

What is 8085 Microprocessor? It has 8 bit data bus and 16 bit address bus, thus it is capable of addressing 64 KB of memory. It has 8 bit ALU 8 bit ALU that can perform 8 bit operations.

Why 8085 microprocessor is called accumulator based microprocessor?

Register A is an 8-bit register used in 8085 to perform arithmetic, logical, I/O & LOAD/STORE operations. Register A is quite often called as an Accumulator. And the result of the arithmetic operation will be stored or accumulated in this register. …

How many addresss are there in 8085 microprocessor?

In 8085 microprocessor there are 5 types of addressing modes: Attention reader!

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What do you mean by addressing modes in 8085 microprocessor?

Addressing Modes in 8085 These are the instructions used to transfer the data from one register to another register, from the memory to the register, and from the register to the memory without any alteration in the content.

What is meant by accumulator in microprocessor?

The accumulator is an 8-bit register that is a part of arithmetic/logic unit (ALU). This register is used to store 8-bit data and to perform arithmetic and logical operations. The result of an operation is stored in the accumulator. The accumulator is also identified as register A.

What is address line in microprocessor?

An address line usually refers to a physical connection between a CPU/chipset and memory. They specify which address to access in the memory. So the task is to find out how many bits are required to pass the input number as an address.

What is microprocessor address?

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The way of specifying data to be operated by an instruction is known as addressing modes. This specifies that the given data is an immediate data or an address. It also specifies whether the given operand is register or register pair.

How did the Intel 8085 microprocessor get its name?

The Intel 8085 microprocessor has got his name as 8085 microprocessor as it is a 8 bit microprocessor and in olden days when they created the first processor of 4 bit named it as 4004 and they don’t that it is a processor which controls whole machine when the invented that its a processor they reversed the last two digits as 4040 from 4004.

What is the program counter in 8085 microprocessor?

The program counter in 8085 microprocessor is a 16-bit register, because It has to fetch two 8-bit data at a time. 7. A direct memory access (DMA) transfer replies 8. Handshaking mode of data transfer is 9. In a Microprocessor, the address of the new next instruction to be executed is stored in 10.

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What is address bus and data bus in 8085 microprocessor?

1) Address Bus (A15-A8 and AD7-AD0): The microprocessor 8085 has 16 bit address lines from A15-A8 and AD7-AD0. These lines are used to transfer 16 bit address of memory as well as 8-bit address of I/O ports. 2) Data Bus: The lower 8 lines (AD7-AD0) are often called as multiplexed data lines.

What is the difference between 8085 and 8080?

Basically, 8085 was the first commercially successful microprocessor by Intel. As some of the architectural drawbacks associated with 8080 was also eliminated by 8085. The size of the data bus of 8085 is 8 bits while that of the address bus is 16. Therefore, can address 64 KB (i.e., 2 16) memory.