What are the instruction set of 8051 microcontroller?
What are the instruction set of 8051 microcontroller?
Continuing further, we will take a look at the 8051 Microcontroller Instruction Set and the 8051 Addressing Modes in this tutorial….Boolean or Bit Manipulation Instructions.
| Mnemonic | Description |
|---|---|
| JNB | Jump if specified Bit is Not Set |
| JBC | Jump if specified Bit is Set and also clear the Bit |
| ANL | Bitwise AND |
| ORL | Bitwise OR |
How many instructions are there in 8051 instruction set?
110 instructions
The microcontroller 8051 instructions set includes 110 instructions, 49 of which are single byte instructions, 45 are two bytes instructions and 17 are three bytes instructions. The instructions format consists of a function mnemonic followed by destination and source field. Data transfer group. Arithmetic group.
What are different types of instructions in 8051?
The instruction set of microcontroller 8051 can be divided into the following groups: Data transfer instructions. Arithmetic instructions. Logical Instructions (Boolean).
What is the operation of the given 8051 microcontroller instructions XRL a direct?
The XRL instruction performs a logical exclusive OR operation between the specified operands. The result is stored in the destination operand. When this instruction is used to modify an output port, the value used as the port data is read from the output data latch, not the pins of the port.
What is 8051 Microcontroller block diagram?
It is an 8-bit microcontroller. It is built with 40 pins DIP (dual inline package), 4kb of ROM storage and 128 bytes of RAM storage, 2 16-bit timers. Let us now discuss the architecture of 8051 Microcontroller. In the following diagram, the system bus connects all the support devices to the CPU.
What is SJMP in 8051?
Home » Instructions » SJMP. The SJMP instruction transfers execution to the specified address. The address is calculated by adding the signed relative offset in the second byte of the instruction to the address of the following instruction.
Is swap a logical instruction?
The result of a logical operation is stored in the accumulator itself. The table given below lists the logical operations which can be performed by the 8051….List of logical instructions in 8051.
| Operation | Mnemonics | Description |
|---|---|---|
| Swap | SWAP A | Swaps the upper nibble of the accumulator with the lower nibble |
Why 8051 is an embedded system?
Microcontroller is used inside an embedded system for managing the function of devices. Therefore, 8051 uses the two 16 bit counters and timers. For the operation of this timers and counters the oscillator is used inside microcontroller.
What are some applications of a 8051 microcontroller?
Energy Management: Competent measuring device systems aid in calculating energy consumption in domestic and industrialized applications.
What is the purpose of 8051 microcontrollers?
The 8051 Microcontroller is a general purpose Microcontroller . Though it is more than 50 years old, the 8051 microcontroller is still heavily used in a number of electronic and electrical devices. Moreover various industries such as automobile, mobile communications, defense, aeronautics, and even healthcare, would be inefficient without this small but powerful component.
Why is the 8051 microcontroller called that?
In 1981, Intel introduced an 8-bit microcontroller called the 8051. It was referred as system on a chip because it had 128 bytes of RAM, 4K byte of on-chip ROM, two timers, one serial port, and 4 ports (8-bit wide), all on a single chip.
What is the meaning of 8051 microcontroller?
8051 microcontroller is an 8-bit microcontroller created in 1981 by Intel Corporation. It has an 8-bit processor that simply means that it operates on 8-bit data at a time. It is among the most popular and commonly used microcontroller.