*Two External RC modes, up to 4 MHz
*Two External Clock modes, up to 40 MHz
*Internal oscillator block:
-8 user selectable frequencies, from 31kHz to
8MHz
-Provides a complete range of clock speeds
from 31kHz to 32MHz when used with PLL
-User tunable to compensate for frequency drift
*Secondary oscillator using Timer1 @ 32 kHz
Baud rate :9600 bitsec