Raspberry Pi /RP2040 /CLOCKS /CLK_USB_CTRL

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Interpret as CLK_USB_CTRL

31 2827 2423 2019 1615 1211 87 43 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (clksrc_pll_usb)AUXSRC 0 (KILL)KILL 0 (ENABLE)ENABLE 0PHASE 0 (NUDGE)NUDGE

AUXSRC=clksrc_pll_usb

Description

Clock control, can be changed on-the-fly (except for auxsrc)

Fields

AUXSRC

Selects the auxiliary clock source, will glitch when switching

0 (clksrc_pll_usb): undefined

1 (clksrc_pll_sys): undefined

2 (rosc_clksrc_ph): undefined

3 (xosc_clksrc): undefined

4 (clksrc_gpin0): undefined

5 (clksrc_gpin1): undefined

KILL

Asynchronously kills the clock generator

ENABLE

Starts and stops the clock generator cleanly

PHASE

This delays the enable signal by up to 3 cycles of the input clock This must be set before the clock is enabled to have any effect

NUDGE

An edge on this signal shifts the phase of the output by 1 cycle of the input clock This can be done at any time

Links

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