|
|
The Calibrated Internal RC Oscillator provides a fixed 1.0, 2.0, 4.0, or 8.0 MHz clock. All
frequencies are nominal values at 5V and 25°C. This clock may be selected as the system
clock by programming the CKSEL fuses as shown in Table 13. If selected, it will
operate with no external components. The CKOPT fuse should always be unprogrammed
when using this clock option. During Reset, hardware loads the calibration
byte into the OSCCAL Register and thereby automatically calibrates the RC Oscillator.
E-mail: 
info@telesys.ru
