i.mx6 Deep Sleep Power Connections

[dmatthews]

We are attempting to implement deep sleep on our custom i.mx6 dual application.  Note that we are not using the PF0100.  Our question is, if NVCC_RGMII and NVCC_ENET are connected to VDDHIGH_CAP, could that cause the weak linear regulator enabled via bit 18 (enable_weak_linreg) of the PMU_REG_2P5n to fail to turn on in DSM (Deep Sleep Mode) or to drop to ~0V?

[igorpadykov]

Hi David

>if NVCC_RGMII and NVCC_ENET are connected to VDDHIGH_CAP, could that cause the weak linear regulator enabled via >bit 18 (enable_weak_linreg) of the PMU_REG_2P5n to fail to turn on in DSM (Deep Sleep Mode) or to drop to ~0V?

in general yes, behaviour may be unpredictable as VDDHIGH_CAP usage is restricted as described below

IMX6DQ6SDLHDG, Hardware Development Guide for i.MX 6Quad, 6Dual, 6DualLite, 6Solo Families of Applic...

Best regards
igor
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