8085

8085 is pronounced as "eighty-eighty-five" microprocessor. It is an 8-bit microprocessor designed by Intel in 1977 using NMOS technology. It is used in washing machines, microwave ovens, mobile phones, etc.

Which language is used in 8085?

For e.g. assembly language of 8085 is different than that of Motorola 6800 microprocessor Page 8 Microprocessor understands Machine Language only! Machine independent languages are called – High-level languages – For e.g. BASIC, PASCAL,C++,C,JAVA, etc. These instructions affect the operation of the processor.

Why is 8085 called an 8-bit processor?

Why 8085 processor is called an 8 bit processor? Because 8085 processor has 8 bit ALU (Arithmetic Logic Review). Similarly 8086 processor has 16 bit ALU.

Is 8085 microcontroller or microprocessor?

The Intel 8085 is an 8-bit microprocessor introduced by Intel in 1977. It was binary compatible with the more-famous Intel 8080 but required less supporting hardware, thus allowing simpler and less expensive microcomputer systems to be built.

How many pins are there in 8085?

The 8085 is supplied in a 40-pin DIP package. To maximise the functions on the available pins, the 8085 uses a multiplexed address/data (AD0-AD7) bus.

Which IC is used in 8085?

8085 is a 8 bit microprocessor which operates at the clock frequency of 3.07Mhz.It provides 24 programmable input output lines using 8255 IC which is known as PPI I.e. Programmable Peripheral Interface).

What is the memory of 8085?

The memory capacity is 64 KB. Also 8085 Can Perform Operation Up to 28 i.e. 256 numbers. A number greater than this is to taken multiple times in 8 bit data bus.

How many bytes is 8085?

In 8085, the length is measured in terms of “byte” rather than “word” because 8085 microprocessor has 8-bit data bus. Three types of instruction are: 1-byte instruction, 2-byte instruction, and 3-byte instruction. In 1-byte instruction, the opcode and the operand of an instruction are represented in one byte.

What is the size of 8085 processor?

Hence, the maximum accessible memory capacity of 8085 microprocessor is 216 Bytes or 64 kB. The 8085 microprocessor consists of an on-chip oscillator of 3 MHz. Basically, it is called 8-bit microprocessor because its ALU (arithmetic logic unit) size is of 8-bit.

Why is it called 8086?

Re: Why the name 8086 Knowing, that the first Intel processors have been 4004 (1971) and 8008 (1972), the next 8080 (1974) primarly designates a more powerful 8-bit device. I agree, that the 6 in 8086 seems related to a 16-Bit bus (in contrast to it's companion 8088).

How many types of 8085 microprocessor are there?

A 8085 microprocessor, is a second generation 8-bit microprocessor and is the base for studying and using all the microprocessor available in the market. The 8085 has six general-purpose registers to store 8-bit data; these are identified as- B, C, D, E, H, and L.

What are the features of 8085 microprocessor?

The features of 8085 include:

• It is an 8-bit microprocessor i.e. it can accept, process or provide 8-bit data.
• It operates on a single +5V power supply connected at Vcc.
• It operates on clock cycle with 50% duly cycle.
• It has on chip clock generator this internal clock generator requires tuned circuit like LC,

What are the 5 flags in 8085?

In 8085 microprocessor, the flags register can have a total of eight flags. Thus a flag can be represented by 1 bit of information. But only five flags are implemented in 8085. ... And they are:

• Carry flag (Cy),
• Auxiliary carry flag (AC),
• Sign flag (S),
• Parity flag (P), and.
• Zero flag (Z).

What is the clock speed of 8085?

8085 operates on a clock frequency of 3MHz–6MHz depending upon the version selected. Clock is provided by a crystal oscillator of 2 times the frequency, so as to produce a 50% duty cycle clock.

How many memory places are in 8085?

Each memory location has a physical address which is a code. The CPU can use the code to access the memory location.

What are the 4 addressing modes of 8085?

In 8085 microprocessor there are 5 types of addressing modes:

• Immediate Addressing Mode – In immediate addressing mode the source operand is always data.
• Register Addressing Mode – ...
• Direct Addressing Mode – ...
• Register Indirect Addressing Mode – ...
• Implied/Implicit Addressing Mode –

How many data lines are there in 8085?

Intel 8085 is an 8-bit microprocessor which has 16 address line for 16-bit address of a memory location. 8 higher order address bits are transferred through 8 bit lines out of this 16 address line while remaining lower order 8 bits of the address are sent through another 8 lines multiplexed with the 8-bit data lines.

Why is 8085 better than 8086?

There are some advantages of 8086 over 8085 e.g. more memory, faster clock speeds, backward compatibility, sort of better math etc. some of them are as follows: The 8086 is a more advanced, efficient and fast operating microprocessor then 8085 but it is also more expensive.

Is 8085 still used?

The Intel 8085 microprocessor was introduced 40 years back, and along with its contemporaries — the Z80 and the 6502 — is pretty much a dinosaur in terms of microprocessor history. But that doesn't stop it from still being included in the syllabus for computer engineering students in many parts of the world.

What is 8085 instruction set?

Instruction Set	Explanation	Example
ADI data [A] ← [A] + data	Add immediate data to accumulator	ADI 55K
ACI data [A] ← [A] + data + [CS]	Add with carry immediate data to accumulator	ACI 55K
DAD rp [H-L] ←[H-L] + [rp]	Add register paid to H-L pair	DAD K
SUB r [A] ←[A]-[r]	Subtract register from accumulator	SUB K