Tool/software:
Hi TI team,
Would you please provide the test flow of force sleep mode ?
When I write 0x000C to register 0x0444, the INH is not released.
INH is an open drain (high polarity) output pin which indicates whether the device is in sleep mode.
When the device is in sleep mode, the driver is turned off (Hi-Z). A pull down resistance external to the PHY can be used (10 kΩ recommended) which pulls down the INH pin down to 0 V.
3.3.7.1 Forced Sleep
PHY can be placed into sleep by itself by bypassing the sleep negotiation by programming reg<0x0444> = 0x000C.
For this forced sleep to work, WAKE should be driven low and MDI lines should be silent. Else, the PHY can transition to functional state immediately after the sleep is forced.
Thanks
