• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 31 subscribers
  • Views 329 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TMS570LS3137: SCI Flags Register (SCIFLR) unspecified behaviors

Hugh Shane
Intellectual 565 points

Part Number: TMS570LS3137

In SPNU499C, Table 26-19. SCI Flags Register (SCIFLR) Field Descriptions, the effect of writing to several of the bits in this register is unclear. Specifically, the effect of writing either a 1 or a 0 to bits 12, 11 and 10 (RXWAKE, TX EMPTY and TXWAKE) is not specified. What values can I safely write to these bits when writing to this register? 

Hugh

  • 0
    TI__Guru**** 199296 points

    Hello Hugh,

    RXWAKE and TXEMPTY are read only, writing to those2 bits have no effect. TXWAKE is used in multiprocessor mode. When the SCI is not used in a multiprocessor mode, software can consider all frames as data frames, so TXWAKE is not used.

    I just read the TRM. R/WC for RXWAKE, and R/W for TXEMPTY are not correct. We will correct them in next rev. Thanks