SPRZ578A December   2024  – July 2025 AM2752-Q1 , AM2754-Q1

 

  1.   1
  2.   Abstract
  3. 1Usage Notes and Advisories Matrices
    1. 1.1 Devices Supported
  4. 2Silicon Revision Usage Notes and Advisories
    1. 2.1 Silicon Usage Notes
      1.      i2284
      2.      i2351
      3.      i2424
    2. 2.2 Silicon Advisories
      1.      i2049
      2.      i2062
      3.      i2120
      4.      i2137
      5.      i2189
      6.      i2196
      7.      i2199
      8.      i2249
      9.      i2253
      10.      i2278
      11.      i2279
      12.      i2310
      13.      i2311
      14.      i2312
      15.      i2377
      16.      i2383
      17.      i2401
      18.      i2427
      19.      i2431
      20.      i2435
      21.      i2436
      22.      i2438
      23.      i2449
      24.      i2455
  5. 3Trademarks
  6. 4Revision History

i2449

Pulsars do not have RAT MMR Parity - Mismatch w. Diagnostic RAT5

Details:

Values stored in Pulsar RAT MMRs are not parity protected while stored. This means a bit flip in the MMR even while parity protected is not detected, so there is no protection from permanent or transient errors. Checking at the initiator parity when the parity is calculated dynamically from values stored in the MMR at the time of the read only covers the interconnect.

Workaround:

User need to perform a Software readback of MMR values during runtime.