SPRZ582B March   2025  – October 2025 AM62L

 

  1.   1
  2. 1Usage Notes and Advisories Matrices
    1. 1.1 Devices Supported
  3. 2Silicon Usage Notes and Advisories
    1. 2.1 Silicon Usage Notes
      1.      i2330
      2.      i2351
    2. 2.2 Silicon Advisories
      1.      i2189
      2.      i2208
      3.      i2249
      4.      i2253
      5.      i2278
      6.      i2279
      7.      i2310
      8.      i2311
      9.      i2312
      10.      i2493
      11.      i2383
      12.      i2401
      13.      i2409
      14.      i2431
      15.      i2435
      16.      i2461
      17.      i2462
      18.      i2463
      19.      i2464
      20.      i2465
      21.      i2466
      22.      i2467
      23.      i2469
      24.      i2470
      25.      i2471
      26.      i2473
      27.      i2474
      28.      i2160
      29.      i2481
      30.      i2482
      31.      i2484
      32.      i2487
  4.   Trademarks
  5. 3Revision History

i2409

USB: USB2 PHY locks up due to short suspend

Details:

The USB 2.0 PHY may hang in response to a USB wake-up event that occurs within 3 microseconds of the USB controller entering suspend. This PHY hang can only be recovered via a power cycle as warm reset is ineffectual.

Workaround(s):

Note: this workaround is only applicable if USB is not the primary boot mode. If USB is the primary boot mode, no workaround is available.

In order to prevent this issue from occurring, a specific order of operations must be observed during the USB controller initialization process: