TS-7250-V3 Supervisory Low Power Mode
From embeddedTS Manuals
To achieve the lowest power sleep state, the kernel is configured with the reset controller driver (ts_supervisor_rstc). This driver implements shutdown for the SBC to enter the low power state. For example, shutdown -h now will cause a proper shutdown to the board, and then remove power to the rest of the board. It will wait for one of 3 reasons to wake back up.
- CN8 ADC Header pin 9 has 3-30V applied.
- 5V goes below 4.7V, and then back above 4.7V.
- RTC Alarm occurs
- USB Console connected
In this low power state the board draws approximately 25mW. When one of the wake up reasons occurs the SBC starts back up like a normal boot. The wakeup source can be detected from the reset reasons.