Datasheet

225
32117D–AVR-01/12
AT32UC3C
3 OSC1 Output clock from Oscillator 1
4 RC8M Output clock from 8MHz / 1MHz RC Oscillator
5 GCLK9 Generic Clock 9
6-7 Reserved
Table 13-5. Clock Sources for CLK_REF
REFSEL Clock/Oscillator Description