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

ANA#27A

Digital Temperature Sensor Readings Differ From Analog Temperature Sensors

Revision(s) Affected:

AWR6443 ES2.0

Description:

The local heating in the digital circuitry can cause the readings from digital temperature sensor to differ from that of the analog temperature sensors (Tx, Rx, and PM).

Implication: The temperature monitor API computes the maximum temperature difference across different sensors and compares against the programmed threshold (TEMP_DIFF_THRESH). Higher difference between analog and digital temperature sensors can cause the monitor to fail.

Workaround(s):

In temperature monitor configuration API (AWR_MONITOR_TEMPERATURE_CONF_SB), if the thresholds for the digital temperature sensors (DIG_TEMP_THRESH_MIN and DIG_TEMP_THRESH_MAX) are both set to zero, the BSS will ignore the digital sensor while computing the temperature difference across sensors to compare against the programmed threshold value (TEMP_DIFF_THRESH).

The digital temperature values (verbose output) from the API need to be validated externally by the processor.