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DRA821U: How many error event inputs are supported on DRA821 ESM?

Fan_Zhang
Expert 4590 points

Part Number: DRA821U
Other Parts Discussed in Thread: DRA821

Hi, Experts,

My customer report an issue about the number of error event inputs supported on DRA821 ESM modules.

In TRM, it is stated "Up to 1024 error event inputs" in 12.7.2.1.1 ESM Features.

But, In 13.7.2.5.18 ESM_RAW_j Register, there are only 16 groups, 4 in WKUP ESM, 4 in MCU ESM and 8 in MAIN ESM, and totally 16*32=512 bits corresponding to error event inputs.

Meanwhile, the marco in SDK defines 32 groups. As below

#define ESM_NUM_INTR_PER_GRP              (32U)
#define ESM_INTR_GRP_NUM                  (32U)
#define ESM_MAX_NUM_INTRS                 (1024U)

Please help to point out if any misunderstanding.

Thanks.