SPRZ488D March   2022  – September 2023 AM2631 , AM2631-Q1 , AM2632 , AM2632-Q1 , AM2634 , AM2634-Q1

 

  1.   1
  2. 1Usage Notes and Advisories Matrices
  3. 2Silicon Usage Notes
    1.     i2324
    2.     i2348
    3.     i2364
  4. 3Silicon Advisories
    1.     i2310
    2.     i2311
    3.     i2313
    4.     i2329
    5.     i2345
    6.     i2346
    7.     i2347
    8.     i2349
    9.     i2350
    10.     i2352
    11.     i2353
    12.     i2354
    13.     i2355
    14.     i2356
    15.     i2357
    16.     i2358
    17.     i2359
    18.     i2374
    19.     i2375
    20.     i2386
    21.     i2392
    22.     i2394
    23.     i2395
    24.     i2401
    25.     i2402
    26.     i2403
    27.     i2404
    28.     i2405
  5.   Trademarks
  6. 4Revision History

i2404

MBOX: Race condition in mailbox registers resulting in events miss

Details:

Potential race condition in capture registers resulting in events getting lost while other events in the same register are being cleared by writing to the register. Following registers are impacted by this issue:

MSS_CTRL: *_MBOX_READ_REQ

MSS_CTRL: *_MBOX_READ_DONE

Workaround(s):

Read the status(READ DONE / READ_DONE_REQ) of the other processor to check any interrupt is in flight before setting up the trigger (WRITE DONE /READ ACK) event.

(OR)

Re-trigger the (WRITE DONE /READ ACK) event if the status (READ DONE / READ_DONE_REQ) is not received within the given time.