The instruction set of the 8051 family is directly related to a special function register called program status word (PSW). This special function register is able to provide the conditions of the processing of the last instruction performed, which is capable of changing it (only some instructions...
8051 / 8052 Instruction SetAuthor : Craig Steiner Source : 8052.com ACALL: Absolute Call ADD, ADDC: Add Accumulator (With Carry) AJMP: Absolute Jump ANL: Bitwise AND CJNE: Compare and Jump if Not Equal CLR: Clear Register CPL: Complement Register DA: Decimal Adjust DEC: Decrement Register...
STC 8051 MicroControllerSTC8051 series, is a 8-bit single-chip microcontroller with a fully compatible instruction set with industrial-standard 80C51 series microcontroller. There is 64K bytes flash memory embeded for appliaction program, which is shared with In-System-Programming code.In-System- ...
The 8051 instruction set allows for instructions of variable length from 1 to 3 bytes. In a single-clock-per-byte-fetch system this means each instruction takes at least as many clocks as it has bytes to execute. The majority of instructions in the AT89LP51RD2/ED2/ID2 fol- low this ...
The 8051 instruction set includes a wide selection of single-bit instructions, and the 128 bits in this area can be directly addressed by these instructions. The bit addresses in this area are 00H through 7FH. All bytes in the lower 128-byte space can be accessed by either direct or ...
Q2. What are some of the features of the 8051 microcontroller architecture? Ans:Some of the key features of the 8051 architecture include a simple instruction set, low power consumption, and compact size. It also has a limited amount of memory and peripheral support compared to more modern mic...
8051 / 8052 Microcontroller Instruction Set SWAP - Swap Accumulator Nibbles Operation:SWAP Function:Swap Accumulator Nibbles Syntax:SWAP A InstructionsOpCodeBytesCyclesFlags SWAP A0xC411None Description:SWAP swaps bits 0-3 of the Accumulator with bits 4-7 of the Accumulator. This instruction is identi...
The 8051 instruction set allows for instructions of variable length from 1 to 3 bytes. In a single-clock-per-byte-fetch system this means each instruction takes at least as many clocks as it has bytes to execute. The majority of instructions in the AT89LP52 follow this rule: the ...
Block Diagram Fully compatible with the MCS® 51 instruction set Single clock per cycle and effi- cient architecture for up to 12.1 times the performance of origi- nal 8051 Fewer machine cycles means lower average power usage in most applications Extensive set of optional fea- tures and ...
New 80251 Microcontroller IP Core Available from CAST is the World’s Fastest 8051-Compatible New 16-bit 80251 microcontroller IP core runs 69.7 times faster than the original 8051, making it the highest performance MCS®51 instruction set compatible IP core ... ...