OSC20 Calibration Byte

  0x1A 8 - [Factory oscillator calibration value]    

OSC20 Calibration Byte

Bit  7 6 5 4 3 2 1 0  
Access    R R R R R R R  
Reset    x x x x x x x  

Bits 6:0 – OSCCAL20M[6:0]: OSC20 Calibration

OSC20 Calibration

These bits contain factory calibration values for the internal 20 MHz oscillator. If the OSCCFG fuse is configured to run the device at 20 MHz, this byte is automatically written into the OSC20MCALIBA register during Reset to ensure correct frequency of the calibrated RC Oscillator.