The device provides several system
clock outputs. Summary of these output clocks are as follows:
- MCU_SYSCLKOUT0
- SYSCLK0 of WKUP_PLLCTRL0
is divided by 4 and then sent out of the device as a LVCMOS clock signal
(MCU_SYSCLKOUT0). This signal can be used to test if the main chip clock
is functioning or not.
- MCU_OBSCLK0
- On the clock output
MCU_OBSCLK0, oscillators and PLLs clocks can be observed for tests and
debug.
- SYSCLKOUT0
- SYSCLK0 from the MAIN_PLL
controller is divided by 4 and then sent out of the device as a LVCMOS
clock signal (SYSCLKOUT0). This signal can be used to test if the main
chip clock is functioning or not.
- OBSCLK0
- On the clock output
OBSCLK0, oscillators and PLLs clocks can be observed for tests and
debug.