• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 63 subscribers
  • Views 305 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.

TPS53679: TPS53679 MFR_SPECIFIC_20 setting

Gary Chang2
Prodigy 20 points
Part Number: TPS53679

Hi TI team

We have some question about TPS53679 MFR_SPECIFIC_20 (maximum operation phase number) setting.

1. How many phase number is default setting? Because we read some MB's FW have single-phase or other phase on difference VR, so need to confirm this.

2. If MFR_SPECIFIC_20 default set and HW setting is difference, who is first priority?

  • 0
    TI__Genius 11095 points

    Hi Gary, 

    MFR_SPECIFIC_20 reset behavior is as follows:

    1- Before either channel is enabled, MFR_20 is initialized to 0x00 always

    2- After either channel gets enabled, MFR_20 is updated automatically to the phase number given by pinstrapping of the CSP pins. 0x00=1 phase, 0x01=2 phase, .... 

    After boot-up, writing MFR_20 to a value less than or equal to the phase number configured in hardware will be accepted, and the phase number will be reduced. Attempting to write a phase number greater than the one configured in hardware will be NACK.