21

ATmega164/324/644

2593AS–AVR–06/05

Errata

ATmega164 Rev. A

Not sampled.

ATmega324 Rev. A

Not sampled.

ATmega644 Rev. A

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.