The device provides several system clock outputs. Summary of these output clocks are as follows:
- MCU_SYSCLKOUT0
- MCU_PLL0_HSDIV0_CLKOUT (MCU_SYSCLKOUT0) divided
by 4 and sent out of the device as MCU_SYSCLKOUT0. This clock output is
provided for test and debug purposes only.
- MCU_OBSCLK0
- Observation clock output for test and debug
purposes only.
- WKUP_CLKOUT0
- WKUP domain CLKOUT0 output.
- SYSCLKOUT0
- MAIN_PLL0_HSDIV0_CLKOUT (SYSCLKOUT0) divided by 4
and then sent out of the device as SYSCLKOUT0. This clock output is
provided for test and debug purposes only.
- CLKOUT0
- CLKOUT0 is the Ethernet subsystem clock
(MAIN_PLL2_HSDIV1_CLKOUT) divided-by-5 or divided-by-10. This clock
output was provided as an optional source to the external PHY. When
configured to operate as the RMII Clock source (50 MHz) the signal must
also be routed back to the respective RMII[x]_REF_CLK pin for proper
device operation.
- OBSCLK[1:0]
- Observation clock outputs
for test and debug purposes only.
- AUDIO_EXT_REFCLK[1:0]
- Option of sourcing one of six McASP high-frequency audio reference
clocks, MAIN_PLL1_HSDIV6_CLKOUT, or MAIN_PLL2_HSDIV8_CLKOUT when
configured to operate as an output.