SWRZ101B December   2021  – December 2023 AM2732 , AM2732-Q1

 

  1.   1
  2.   Abstract
  3. 1Silicon Usage Notes and Advisories Matrices
    1.     Devices Supported
  4. 2 Usage Notes and Advisories
    1.     Silicon Usage Notes
      1.      i2293
      2.      i2295
      3.      i2300
      4.      i2324
      5.      i2364
      6.      i2389
      7.      i2390
    2.     Silicon Advisories
      1.      i2162
      2.      i2288
      3.      i2289
      4.      i2294
      5.      i2297
      6.      i2298
      7.      i2299
      8.      i2301
      9.      i2302
      10.      i2309
      11.      i2315
      12.      i2318
      13.      i2329
      14.      i2336
      15.      i2337
      16.      i2338
      17.      i2339
      18.      i2340
      19.      i2341
      20.      i2342
      21.      i2344
      22.      i2345
      23.      i2387
      24.      i2392
      25.      i2394
      26.      i2386
  5.   Trademarks
  6. 3Revision History

i2337

SPI: A Data Length Error is Generated Repeatedly in Peripheral Mode When IO Loopback is Enabled

Details:

When a DLEN error is created in Peripheral mode of the SPI using nSCS pins in IO Loopback Test mode, the SPI module re-transmits the data with the DLEN error instead of aborting the ongoing transfer and stopping. This is only an issue for an IOLPBK mode peripheral in Analog Loopback configuration, when the intentional error generation feature is triggered using CTRLDLENERR (IOLPBKTSTCR.16).

Workaround(s):

After the DLEN_ERR interrupt is detected in IOLPBK mode, disable the transfers by clearing the SPIEN (bit 24) in the SPIGCR1 register and then, re-enable the transfers by resetting the SPIEN bit.