SPRZ575 March   2024 AM67 , AM67A , TDA4AEN-Q1 , TDA4VEN-Q1

 

  1.   1
  2. 1Modules Affected
  3. 2Nomenclature, Package Symbolization, and Revision Identification
    1. 2.1 Device and Development-Support Tool Nomenclature
    2. 2.2 Devices Supported
    3. 2.3 Package Symbolization and Revision Identification
  4. 3Silicon Revision 1.0 Usage Notes and Advisories
    1. 3.1 Silicon Revision 1.0 Usage Notes
      1.      i2134
    2. 3.2 Silicon Revision 1.0 Advisories
      1.      i2049
      2.      i2062
      3.      i2097
      4.      i2120
      5.      i2137
      6.      i2189
      7.      i2190
      8.      i2196
      9.      i2199
      10.      i2208
      11.      i2242
      12.      i2243
      13.      i2249
      14.      i2253
      15.      i2278
      16.      i2279
      17.      i2310
      18.      i2311
      19.      i2312
      20.      i2326
      21.      i2351
      22.      i2362
      23.      i2366
      24.      i2372
      25.      i2383
      26.      i2399
      27.      i2401
      28.      i2407
      29.      i2409
      30.      i2410
  5.   Trademarks
  6. 4Revision History

i2253

PRG: CTRL_MMR STAT registers are unreliable indicators of POK threshold failure

Details

The POK overvoltage and undervoltage flags in the CTRL_MMR PRG STAT registers are unreliable indicators of whether the POK has seen a failure. As a result, they are being marked as Reserved in the device Technical Reference Manual (TRM).

Workaround

The filtered POK output updates ESM flags.

Upon POK initialization (i.e. enable), the ESM flags should be cleared (due to comparisons carried out during the bandgap and / or the POK settling time). After this initial clear, the ESM flags can be used as a reliable indicator of failure (or no failure) from the POKs.