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An addressing mode specifies, how will an operand(s) is obtained from the fetched bits before performing the operation(s) using it. Time clock cycle (s) 8051 Microcontroller Instruction Set. For interrupt response time information, refer to the hardware description chapter. Note: 1. Operations on SFR byte address 23 Nov 2017 Complete tutorial on 8051 Microcontroller Instruction Set, 8051 The 8051 Family of Microcontrollers allows five types of Addressing Modes for The Intel MCS-51 (commonly termed 8051) is a single chip microcontroller (MCU) series developed by Intel in 1980 for use in embedded systems. The architect of the instruction set of the Intel MCS-51 was John H. Wharton. The family was continued in 1996 with the enhanced 8-bit MCS-151 and the 8/16/32-bit MCS-2514 8051 Family Microcontrollers Instruction Set Chapter Outline Learn programming basics and introduction to machine and assembly instructions Different types 1. 8051 Instruction Set A computer instruction is made up of an operation code In C, abbreviated SFR names are defined in the family specific header files. Visit the Silicon Labs Education Resource Center to learn more about the MCU. microcontrollers have the same SFRBas the 8051, and at the same SET. All members of the MCS-51 family execute the same instruction set. The MCS-51 Alphabetical List of Instructions. ACALL - Absolute Call; ADD, ADDC - Add Accumulator (With Carry); AJMP - Absolute Jump; ANL - Bitwise AND It defines NOP instruction. Example- 8051 Machine code. 00H. • NOP means no operation; PC sets to new value and processor fetches next from 1001H.