ATMEGA644/V データシートの表示（PDF） - Atmel Corporation

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ATMEGA644/V

8-bit AVR® Microcontroller with 16/32/64K Bytes In-System Programmable Flash

Atmel Corporation 

Errata

ATmega164 Rev. A

ATmega324 Rev. A

ATmega644 Rev. A

ATmega164/324/644

Not sampled.

Not sampled.

• EEPROM read from application code does not work in Lock Bit Mode 3.

1. EEPROM read from application code does not work in Lock Bit Mode 3

When the Memory Lock Bits LB2 and LB1 are programmed to mode 3, EEPROM

read does not work from the application code.

Problem Fix/Work around

Do not set Lock Bit Protection Mode 3 when the application code needs to read from

EEPROM.

21

2593AS–AVR–06/05

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