AN5466

2.5.2.1 Load the JAPLL with the Default INT and FRAC Preset Values

The following figure shows the state machine for JAPPL with default INT and FRAC Preset values.

Figure 2-10. Load the JAPLL with the Default INT and FRAC Preset Values

The first task carried out by the JAPLL Controller finite state machine after reset is to load the JAPLL INT and PRESET values with the default’s integer and fractional PLL divider settings with respect to the local auxiliary clock frequency. Loading the JAPLL with new INT and FRAC preset values speeds up the JAPLL locking to the reference clock.

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