DS90UB935-Q1: 935 or 953 sleep mode or low-power mode without losing register settings

My customer is also interested to know:

Also if the Deserializer 960 is turned off, but the 935 is left power on. Will this help reduce the power of 935?  If yes, how much power will 935 consume in this case? In addition, if 960 is turned on later, how much time will it take to re-link with 935?

Thanks,
Alan

Hi Alan,

I sent you some slides discussing this, please let me know if you have any other questions.  

Regards,

Mandeep Singh

Hi Mandeep,

I looked at the slides you emailed, but I don't think it addresses the customer's questions/concern.

My customer wants to 935/953 to emulate sleep mode, where the image sensor is also in sleep mode (not generating data).

1. Could any of these register controls help reduce power consumption?  Assume image sensor is powered-down and not generating data to the 935?
   1. CSI_LANE_SEL – Set to 1-lane instead of 4-lane (normal case when sensor is operating)
   2. CRC_TX_GEN_ENABLE – Disable TX CRC generator
   3. LOCAL_BIST_EN – Enable BIST Mode (does this mode inherently disable the CSI port)
   4. MODE – Can Non-Synchronous mode be used with External Clock to lower power?
2. Can disabling the External Clock source reduce 935's power consumption in Non-Synchronous mode?
3. Are there any TEST MODE or RESERVED registers (Direct or Indirect) that can disable the D-PHY Receiver, FPD TX driver, or any other blocks that consume power?

Thanks,
Alan