SPRZ576 November   2024 AM2612

ADVANCE INFORMATION  

  1.   1
  2.   Abstract
  3. 1Usage Notes and Advisories Matrices
  4. 2Silicon Revision 1.0 Usage Notes and Advisories
    1. 2.1 Silicon Revision 1.0 Usage Notes
      1.      i2324
    2. 2.2 Silicon Revision 1.0 Advisories
      1.      i2189
      2.      i2310
      3.      i2311
      4.      i2345
      5.      i2351
      6.      i2352
      7.      i2353
      8.      i2354
      9.      i2356
      10.      i2357
      11.      i2358
      12.      i2359
      13.      i2374
      14.      i2383
      15.      i2411
      16.      i2412
      17.      i2427
      18.      i2428
      19.      i2433
      20.      i2439
      21.      i2440
  5. 3Trademarks
  6. 4Revision History

i2353

CONTROLSS-SDFM: Dynamically Changing Data Filter Settings (Such as Filter Type or DOSR) Will Trigger Spurious Data Acknowledge Events

Details:

When SDFM data settings—such as filter type or DOSR settings—are dynamically changed during run time, spurious data-filter-ready events will be triggered. The spurious data-ready event will trigger a corresponding CPU interrupt, CLA task, and DMA trigger if configured appropriately.

Workaround(s):

When SDFM data filter settings need to be changed dynamically, follow the procedure below to ensure spurious data-filter-ready events are not generated:

  1. Disable the data filter.
  2. Delay for at least a latency of the data filter + 3 SD-Cx clock cycles.
  3. Change data filter settings such as filter type and DOSR.
  4. Delay for at least a latency of the data filter + 5 SD-Cx clock cycles.
  5. Enable the data filter.