Revision(s) Affected:

AWR1843AOP ES1.0

Description:

Any read from the HWA configuration or status registers can be corrupted, if the read access is performed when the HWA is active. Reads from the HWA registers can be performed correctly, only after the execution of the entire ParamSet (i.e., after the ACC_DONE_INTR interrupt) or when the HWA is in IDLE mode waiting for the trigger to the start the execution of the next ParamSet instruction.

Workaround(s):

Perform the following:

• Read-back of signature registers: Software needs to maintain a soft copy of the one-hot encoded signature registers and use that copy location for the EDMA programming.
• Read-back of static registers on the HWA ParamSet interrupt. There is no reliable way to read the HWA static registers, if the HWA is active.
• Read-back of Debug/status registers: The User can only read these registers when the HWA is not active.