I suspect that it continues to monitor the cells at a 50 millisecond sample rate, just as in standalone mode (Otherwise, what's the point of the FS bit in OUTPUT_CONTROL?)
A fellow engineer believes that in host-control-mode, it only measure cell V's when the host measures cell voltage at V_OUT, but I believe measurement of cell V externally is not required for UV protection to occur. If he's right, I really need to switch to standalone mode whenever my processor goes to sleep. If I'm right, host-mode is all I need.
Yes, sampling of the cells for safety continues in host mode at the same rate as standalone mode.
Measurement of the cell voltage by the host through the cell monitor features is not required for the device to continue to operate with its pre-programmed safety limits in host mode, even if the host is disconnected or asleep. Some other thoughts when putting the host to sleep:
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