On 7/17/19 12:10 PM, Krzysztof Kozlowski wrote: > On Mon, 15 Jul 2019 at 14:44, Lukasz Luba <l.luba@xxxxxxxxxxxxxxxxxxx> wrote: >> >> The NOC100 has a parent which clock rate is set tot 400MHz. The OPPs which >> are not possible to set are removed and new one is added. > > I think it is just NOC bus... or are there more of such and this is 100 MHz one? Yes, there is a bus NOC100 with a dedicated clock tree in the HW (with 3 muxes and one divider), which makes possible to take different PLL as a source then WCORE have, divide the rate from it and even switch for a while to alternative stable PLL (on the 2nd mux to SPLL (after a divider)) to wait for main PLL rate change stability delay. Max rate is limited to 100MHz for this NOC100 bus. Regards, Lukasz > > Best regards, > Krzysztof > >
