SPRAD21G May 2022 – December 2024 AM620-Q1 , AM623 , AM625 , AM625-Q1 , AM625SIP , AM62A3 , AM62A3-Q1 , AM62A7 , AM62A7-Q1 , AM62D-Q1 , AM62P , AM62P-Q1
Verify the required loopback clock configuration. Different configuration of clock loopback can be made using OSPI0_LBCLKO (OSPI Loopback Clock Output) and OSPI0_DQS (OSPI Data Strobe or Loopback Clock Input). For the following loopback configurations, see the device-specific data sheet:
Processor DQS or Loopback Clock is used along with the DS data strobe of attached memory device
If DS (Read Data Strobe) pin is available on the attached device, connect the DS pin of the attached device to the OSPI0_DQS pin of the processor. Leave the OSPI0_LBCLKO pin unconnected.
If DS pin is not being currently used, to configure the external loopback connect the OSPI0_LBCLKO output pin of the processor to the OSPI0_DQS input pin of the processor.
If External Loopback is not used, the recommendation is to leave the OSPI0_LBCLKO and OSPI0_DQS pins unconnected.
D0 and D1 of the processor OSPI interface pins must be connected to D0 and D1 of the QSPI / OSPI memory device pins to support legacy x1 commands.
Data bit swapping is not allowed.