SWRZ098 April   2021 AWR6443

 

  1. 1Introduction
  2. 2Device Nomenclature
  3. 3Device Markings
  4. 4Usage Notes
    1. 4.1 MSS: SPI Speed in 3-Wire Mode Usage Note
  5. 5Advisory to Silicon Variant / Revision Map
  6. 6Known Design Exceptions to Functional Specifications
    1.     MSS#25
    2.     MSS#26
    3.     MSS#27
    4.     MSS#28
    5.     MSS#29
    6.     MSS#30
    7.     MSS#31
    8.     MSS#32
    9.     MSS#33
    10.     MSS#36
    11.     MSS#37B
    12.     MSS#38A
    13.     MSS#39
    14.     MSS#40
    15.     MSS#41
    16.     MSS#43A
    17.     MSS#44
    18.     MSS#45
    19.     ANA#11A
    20.     ANA#12A
    21.     ANA#13B
    22.     ANA#14
    23.     ANA#15A
    24.     ANA#16
    25.     ANA#17A
    26.     ANA#18B
    27.     ANA#19
    28.     ANA#20
    29.     ANA#21A
    30.     ANA#22A
    31.     ANA#27A
  7. 7Trademarks
  8. 8Revision History

MSS#28

A Data Length Error is Generated Repeatedly in Slave Mode When IO Loopback is Enabled

Revision(s) Affected:

AWR6443 ES2.0

Description:

When a DLEN error is created in Slave 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 Slave 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.