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MCHC908GR8ACFAE 开发手册 - NXP（恩智浦）
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NXP（恩智浦）
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微控制器
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LQFP-32
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Semiconductor Products Sector
Application Note
© Motorola, Inc., 2001
AN2183
Using FLASH as EEPROM on the MC68HC908GP32
By Derrick H.J. Klotz
Field Applications Engineer
Toronto, Canada
Introduction
This application note describes a method for using the on-chip FLASH
memory of the MC68HC908GP32 as one would typically use EEPROM
(electrically erasable programmable read-only memory). For the
purposes of this application note, the FLASH memory that is
manipulated via this method is referred to as "FlashEE." It is expected
that the reader is somewhat familiar with the
MC68HC908GP32/08GP32 Technical Data book, Motorola document
order number MC68HC908GP32/H, as well as typical EEPROM device
usage.
In many projects, EEPROMs are used as nonvolatile storage for
calibration data, control information, data logging, etc. The FLASH
memory technology employed in the M68HC908 Family of
microcontrollers (MCU) is capable of being reprogrammed easily while
the application software is executing. Project cost savings can be
realized by simply using an appropriate section of the on-chip FLASH
memory as one would use an off-chip EEPROM device.
Freescale Semiconductor, I
For More Information On This Product,
Go to: www.freescale.com
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Freescale Semiconductor
© Freescale Semiconductor, Inc., 2004. All rights reserved.
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