ATMEGA8_10 Datasheet, PDF (18/25 Pages) ATMEL Corporation – 8-bit with 8K Bytes In-System Programmable Flash

5. Reading EEPROM by using ST or STS to set EERE bit triggers unexpected interrupt
request.
Reading EEPROM by using the ST or STS command to set the EERE bit in the EECR reg-
ister triggers an unexpected EEPROM interrupt request.
Problem Fix / Workaround
Always use OUT or SBI to set EERE in EECR.
18 ATmega8(L)
2486XS–AVR–06/10