MC68HC908AB32 MOTOROLA [Motorola, Inc], MC68HC908AB32 Datasheet - Page 71

• Manufacturer Part Number: MC68HC908AB32
• Description: HCMOS Microcontroller Unit
• Manufacturer: MOTOROLA [Motorola, Inc]

5.4 Functional Description
5.5 EEPROM Configuration
MC68HC908AB32
MOTOROLA
—
Rev. 1.0
The 512 bytes of EEPROM is located at $0800–$09FF, and can be
programmed or erased without an additional external high voltage
supply. The program and erase operations are enabled through the use
of an internal charge pump. For each byte of EEPROM, the write/erase
endurance is 10,000 cycles.
The 8-bit EEPROM non-volatile register (EENVR) and the 16-bit
EEPROM timebase divider non-volatile register (EEDIVNVR) contain
the default settings for the following EEPROM configurations:
EENVR and EEDIVNVR are non-volatile, EEPROM registers. They are
programmed and erased in the same way as EEPROM bytes. The
contents of these registers are loaded into their respective volatile
registers during a MCU reset. The values in these read/write, volatile
registers define the EEPROM configurations.
For EENVR, the corresponding volatile register is the EEPROM array
configuration register (EEACR).
For the EEDIVNVR (two 8-bit registers: EEDIVHNVR and EEDIVLNVR),
the corresponding volatile register is the EEPROM timebase divider
register (EEDIV: EEDIVH and EEDIVL)
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Freescale Semiconductor, Inc.
For More Information On This Product,
Security option
Block protection
EEPROM timebase reference
Go to: www.freescale.com
EEPROM
Functional Description
Technical Data
EEPROM
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