7.7.2.6 OSC20 Temperature Calibration byte

Name: OSCCAL20M1
Offset: 0x1B
Reset: [Factory oscillator temperature calibration value]
Property: -

Bit 76543210 
     OSCCAL20MTCAL[3:0] 
Access RRRR 
Reset xxxx 

Bits 3:0 – OSCCAL20MTCAL[3:0] OSC20 Temperature Calibration

These bits contain factory temperature 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 OSC20MCALIBB register during Reset to ensure correct frequency of the calibrated RC Oscillator.