SPRAD21E May 2023 – February 2024 AM620-Q1 , AM623 , AM625 , AM625-Q1 , AM625SIP , AM62A3 , AM62A3-Q1 , AM62A7 , AM62A7-Q1 , AM62P , AM62P-Q1
For the operation of the processor, select a crystal as clock source or 1.8 V LVCMOS square-wave digital clock source.
A 25 MHz external crystal connected to the internal high frequency oscillator (MCU_HFOSC0), is the default clock source for internal reference clock HFOSC0_CLKOUT.
Discrete components used to implement the oscillator circuit are recommended to be placed as close as possible to the MCU_OSC0_XI and MCU_OSC0_XO pins. For the crystal, follow the MCU_OSC0 Crystal Circuit Requirements table of the device-specific data sheet when choosing the load capacitors.
When a 1.8 V LVCMOS square-wave digital clock source is used, connect the processor XO pin as per the device-specific data sheet recommendation.
For information on clock selection, see the [FAQ] AM625 / AM623 / AM625SIP / AM625-Q1 / AM620-Q1 Custom board hardware design – Queries regarding Crystal selection. This is a generic FAQ and can also be used for AM62A7 / AM62A3 and AM62P / AM62P-Q1 family of processors.