ACT8846 datasheet(45/63 Pages) QORVO

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ACT8846

Advanced PMU for Multi-core

Application Processors

Data Sheet Rev. 13.0, Nov. 11, 2019 | Subject to change without notice

45 of 63

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CMI 108: ACT8846QM108 continued

Shutdown

The processor can turn the IC off with standard I2C commands. Other options for turning off the IC are to pull PWRHLD

low or assert nPBIN low for > 10s.

PWREN

PWREN is intended to be pulled high or low at turnon to configure the IC for different processor configurations.

PWREN should be connected high or low before startup.

When PWREN is logic L, OUT2 is configured off, OUT11 is configured on, and OUT3 is configured for 1.2V.

When PWREN is logic H, OUT2 is configured on, OUT11 is configured off, and OUT3 is configured for 1.125V.

nPBIN

nPBIN must be left floating. It can be used to turn off the processor by asserting nPBIN low for > 10s

NRSTO

nRSTO is gated by OUT9 and has a 40ms delay.

DVS

DVS functionality is only available via I2C.

VSELR2

VSELR2 should be tied to ground. VSELR2 does not have functionality with this CMI option.

GPIO1/2

GPIO1 should be connected directly to OUT13.

GPIO2 should be connected directly to PWREN.

GPIO3/4/5/6

These outputs are off by default but can be enabled via I2C. GPIO3 frequency and duty cycle are 256Hz and 50%.

GPIO4/5/6 frequency and duty cycle are 0.25Hz and 6.25%.

Watchdog

All watchdog functionality is disabled by default.

ACT8846 Datasheet(PDF) 45 Page - Qorvo, Inc