SPRZ570C November   2023  – July 2025 AM263P2-Q1 , AM263P4 , AM263P4-Q1

 

  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.      i2488
    2. 2.2 Silicon Revision 1.0 Advisories
      1.      i2189
      2.      i2310
      3.      i2374
      4.      i2311
      5.      i2345
      6.      i2351
      7.      i2352
      8.      i2353
      9.      i2354
      10.      i2356
      11.      i2357
      12.      i2358
      13.      i2359
      14.      i2383
      15.      i2392
      16.      i2393
      17.      i2394
      18.      i2401
      19.      i2404
      20.      i2405
      21.      i2426
      22.      i2427
      23.      i2428
      24.      i2433
      25.      i2438
      26.      i2439
      27.      i2485
      28.      i2486
  5. 3Trademarks
  6. 4Revision History

i2426

ROM does not support OSPI 8D boot mode for the flashes supporting extended opcode

Details:

Boot ROM reads SFDP header from flash memory after switching to 8D mode for adjusting the read tap delays. A5h command is used to read the SFDP header. Flashes that support extended Opcode expect A5h followed by 5Ah or A5h based on inverse or repeat to be sent by ROM. This is not supported in ROM code.

This issue applies only for the flash memories that need extended opcode support in 8D boot mode. 1S and 8S boot modes are not impacted by this issue.

Workaround(s):

None. Use the Flash memories that do not require extended OPCode