SPRZ580A December   2024  – October 2025 AM62D-Q1

 

  1.   1
  2.   Abstract
  3. 1Usage Notes and Advisories Matrices
    1. 1.1 Devices Supported
  4. 2Silicon Usage Notes and Advisories
    1. 2.1 Silicon Usage Notes
      1.      i2351
      2.      i2330
      3.      i2372
    2. 2.2 Silicon Advisories
      1.      i2049
      2.      i2062
      3.      i2087
      4.      i2134
      5.      i2189
      6.      i2196
      7.      i2199
      8.      i2208
      9.      i2249
      10.      i2278
      11.      i2279
      12.      i2310
      13.      i2311
      14.      i2312
      15.      i2366
      16.      i2371
      17.      i2120
      18.      i2137
      19.      i2253
      20.      i2383
      21.      i2401
      22.      i2407
      23.      i2409
      24.      i2410
      25.      i2376
      26.      i2399
      27.      i2413
      28.      i2414
      29.      i2417
      30.      i2419
      31.      i2420
      32.      i2421
      33.      i2422
      34.      i2423
      35.      i2431
      36.      i2435
      37.      i2160
      38.      i2436
      39.      i2482
      40.      i2464
      41.      i2487
      42.      i2493
  5.   Trademarks
  6.   Revision History

i2420

Boot: XSPI Boot time is not consistent in SFDP mode

Details:

When using xSPI boot with SFDP enabled (i.e. booting in DDR mode at 25Mhz) there is boot time variation across cold or warm boot. The issue is related to asynch bridge crossing in the OSPI subsystem, it is causing a race condition between:

  1. OSPI IP finishing its prefetch of data
  2. The next read transaction being submitted to the OSPI IP by the TI OSPI wrapper.
This introduces enough of a delay to cause the OSPI controller to de-assert chip select hence slowing down the overall transfer.

Workaround(s):

None