- PWROFF_ C2M_L
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- PWROFF_C2M_L is an active-Low signal to power down the SOM and pulled High to the +5V SOM input power rail.
- When PWROFF_C2M_L is asserted, the SOM power regulators perform a full-power shutdown of the device following the correct regulator power-down sequence. This signal does not alert application software to the power shutdown.
- Upon deassertion of PWROFF_C2M_L, the SOM power regulators initiate a power-on sequence.
Note: Asserting PWROFF_C2M_L does not perform a software shutdown or notify the system of the shutdown. The power regulators start to power down instantly. Use the MIO31_PMU_GPI pin and PMU functionality to initiate a software shutdown. - PWRGD_LPD_M2C
- PWRGD_LPD_M2C is an active-High push-pull output signal from the SOM power system that indicates the power status of all SOM PS low-power domain (LPD) rails. PWRGD_LPD_M2C is pulled Low when inactive. When active, it sources the 5.0V rail on the SOM. A carrier card can use this signal to monitor LPD status.
- PWRGD_FPD_M2C
- PWRGD_FPD_M2C is an active-High push-pull output signal from
the SOM power system that indicates the power status of all SOM PS
full-power domain (FPD) rails. PWRGD_FPD_M2C is pulled Low when inactive.
When active, it sources the 5.0V rail on the SOM. A carrier card can use
this signal to monitor FPD status.Note: The K26 SOM does not have split rails for LPD and FPD. PWRGD_LPD_M2C and PWRGD_FPD_M2C are tied together on the SOM.
- PWRGD_PL_M2C
- PWRGD_PL_M2C is an active-High push-pull output signal from the SOM power system that indicates the power status of all SOM PL power rails. PWRGD_PL_M2C is pulled Low when inactive. When active, it sources the 5.0V rail on the SOM. A carrier card can use this signal to monitor PL power status.
- VCCOEN_PS_M2C
- VCCOEN_PS_M2C is an active-High push-pull output signal from the SOM power system to enable the PS VCCO rails that are supplied by the carrier card. VCCOEV_PS_M2C is pulled Low when inactive. When active, it sources the 5.0V rail on the SOM. A carrier card can use this signal as an indication to turn power on for all PS peripherals.
- VCCOEN_PL_M2C
- VCCOEN_PL_M2C is an active-High push-pull output signal from the SOM power system to enable the PL VCCO rails that are supplied by the carrier card. VCCOEN_PL_M2C is pulled Low when inactive. When active, it sources the 5.0V rail on the SOM. A carrier card can use this signal as an indication to turn power on for all PL peripherals.