Rainbow Electronics ATmega8HVD - Manual (Page 31)

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8052B–AVR–09/08
ATmega4HVD/8HVD
• Bit 0 – OSIEN: Oscillator Sampling Interface Enable
Setting this bit enables the Oscillator Sampling Interface. When this bit is cleared, the Oscilla-
tor Sampling Interface is disabled.
Notes: 1. The prescaler is reset each time the OSICSR register is written, and hence each time a new
oscillator source is selected.
2. Enabling the OSI module and selecting Slow RC Oscillator as input source is the only way to
enable the Slow RC Oscillator. The Slow RC Oscillator will not run in any other modes.