AN1836 Motorola / Freescale Semiconductor, AN1836 Datasheet

Manufacturer Part Number

AN1836

Description

FLASH Programming for Motorola MC68HC912 Microcontrollers

Manufacturer

Motorola / Freescale Semiconductor

Datasheet

1.AN1836.pdf (32 pages)

Motorola Semiconductor Application Note

FLASH Programming for Motorola MC68HC912

Microcontrollers

By Matt Ruff

Introduction

Body Electronics and Occupant Safety Systems Engineering

Austin, Texas

This document outlines basic routines that demonstrate how to program

and erase FLASH EEPROM on the MC68HC912 Family of

microcontrollers (MCU) through the background debug mode (BDM)

interface using a Motorola serial debug interface (SDIL) and the

SDBUG12 software (version 2.15) from P&E Microcomputer Systems,

Inc. SDBUG12 is a software interface tool to the SDIL hardware, which

allows for background monitoring of the M68HC12 Family of MCUs.

Information pertaining to the proper conditioning and handling of the

external voltage supply used to program the FLASH EEPROM

(electrically erasable programmable read-only memory) also is included.

Care must be taken to ensure proper programming and to prevent

damage to the device or data corruption in the memory array.

This application note provides updated information to the engineering

bulletin titled Erasing and Programming the FLASH EEPROM on the

MC68HC912B32, Motorola document order number EB183/D, in

addition to a much greater detailed description of the programming

voltage supply considerations needed to design an application.

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