Sunday, February 28, 2016

8051 Long Addressing Mode

Long Addressing Mode

  • In this mode, the operand is an address
  • Instructions associated with this mode are LCALL and LJMP
  • These are 3-byte instructions where the 16-bit address is specified as the operand
  • It allows the use of full 64K code space
  • Example:
  • LCALL PORT_INIT
    PORT_INIT: MOV P0, #0FH
    PORT_INIT is a subroutine which can be anywhere in program memory



Related topics:
8051 Addressing Modes   |   8051 Register Addressing Mode   |   8051 Direct Addressing Mode   |   8051 Indirect Addressing Mode   |   8051 Immediate Addressing Mode   |   8051 Relative Addressing Mode   |   8051 Absolute Addressing Mode   |   8051 Indexed Addressing Mode   |   8051 External Addressing Mode

List of topics: 8051

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