Refer to the PDF data sheet for device specific package drawings
The device contains four ATL modules that can be used for asynchronous sample rate conversion of audio. The ATL calculates the error between two time bases, such as audio syncs, and optionally generates an averaged clock using cycle stealing via software.
For more detailed information on the ATL peripheral, see the Audio Tracking Logic (ATL) chapter of the device-specific Technical Reference Manual.
Audio Tracking Logic x (x= 1 to 4) module is also referred to as ATLx.