[PDF] 68hc11 example code

  • What is the addressing mode of 68HC11?

    The 68HC11 assembler will automatically choose the direct addressing mode if the address specified is in the range $00 to $FF. Extended addressing could also be used to access this portion of memory, but it would rarely be preferable. The indexed addressing mode uses the X or Y register as a pointer into memory.

  • What are the operating modes of 68HC11?

    The 68HC11F1 microcontroller has four operating modes: expanded nonmultiplexed, special test, single chip, and special bootstrap modes (HC11 chapter 3 and F1 pp.

  • What registers make up the Motorola 68HC11 microprocessor and their sizes?

    It has two eight-bit accumulators, A and B, two sixteen-bit index registers, X and Y, a condition code register, a 16-bit stack pointer, and a program counter. In addition, there is an 8 x 8-bit multiply (A x B), with full 16-bit result, and fractional/integer 16-bit by 16-bit divide instructions.
  • The RMB (reserve memory byte) directive tells the assembler to reserve one memory byte(s) of data storage. It also assigns the label on its left to the address of the reserved byte. For example the instruction “VALUE_1 RMB 1” (just after ORG $0000) reserves location $0000 for the variable VALUE_1.
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68HC11 Programmers Reference Manual

gram examples distributed with the Motorola 68HC11 Reference Manual; any of the code examples stored on the anonymous ftp sites (see Section H) or ...





68HC11 Instruction Set

Immediate addressing always deals with data or operands stored in registers not in memory. Examples: Address Code Mnemonic. Instruction Actions. 0100 86 5C LDAA 



MC68HC11

MICROCONTROLADOR 68HC11: FUNDAMENTOS RECURSOS Y PROGRAMACIÓN. OBJETIVOS : Con este libro se pretende cubrir el gran vacío que existe de información en 



68HC11 Notes

30 oct 2006 GCC 68HC11 compiler version 2.2. Processor(s):. Motorola 68HC11 E1E9 operating at 2 MHz E-clock ... 3.4 Sample Source Code .



Programming

68HC11 Instruction Set the source program is translated into machine code ... Example. ? Add the following numbers: ? 68HC11 can add 2.



M68HC11E M68HC11E Family - Data Sheet

In the M68HC11 CPU condition codes are updated automatically by most instructions. For example



Interfacing Motorola 68HC11 to Microchip SPI™ Serial EEPROMS

Motorola 68HC11. In order to simplify the design process Microchip has written an assembly code rou- tine to communicate with our SPI parts that is 



Tutorial Introduction

Welcome to this tutorial on the 68HC08 Analog-to-Digital Converter (ADC). can be found in the 68HC11 Reference Manual M68HC11RM/AD (see http://www.



[PDF] 68hc11 instruction set

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