EFP01 datasheet(125/158 Pages) SILABS

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Bit

Name

Reset

Access

Description

DIRECT_MODE_EN

read-write

Set to enable Direct Mode. After DIRECT_MODE_EN is

set, on the next I2C stop condition the EFP01 will disable

the internal pullups on the I2C lines. At that point, the

EFP01's I2C pins are expecting to be driven by push-pull

outputs from the host processor to control the energy

mode state. If FORCE_EM0==1, an I2C start condition

(SCL=1, SDA=0) will cause EFP01 to exit Direct Mode and

re-enable the internal I2C pullups.

6.2.33 VOA_V

Offset

Bit Position

0x49

Reset

0x00

Access

Name

Table 6.33. VOA_V

Bit

Name

Reset

Access

Description

RESERVED

Reserved. Always write bits to 0.

6:0

VOA_V

0x00

read-write

Controls DCDC A output voltage target in EM0/EM2

VOA target =1.7374 V + ( VOA_V * 0.0306 V )

Note in Boost modes, it is possible to program the VOA

target to a higher voltage than supported in the datasheet.

The system designer should ensure that the VOA_V out-

put voltage programming does not exceed the datasheet

Output Programmable Voltage Range value.

The VOA Output Accuracy specifications should be taken

into consideration to ensure the output voltage range

meets the load's input voltage requirements.

EFP01 Energy Friendly PMIC Family Data Sheet

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