STPMIC1 datasheet(92/140 Pages) STMICROELECTRONICS

Part #	STPMIC1

Description	Highly integrated power management IC for micro processor units

PDF	140 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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92 / 140 page

6.4.5

LDO4 MAIN mode control register (LDO4_MAIN_CR)

Table 42. LDO4_MAIN_CR

reserved

SRC_VBUSOTG

SRC_BOOST

SRC_VIN

reserved

ENA

R/W

Address: 0x28

Type: read/write register

Default: 0x0000000X

Description: LDO4 MAIN mode control register. Register is set to a default value in CHECK&LOAD. User can

write to this register to enable and force the input source of LDO4 that is applied to MAIN mode. If more than one

SRC_ bit is set, it is taken into account following this priority order: VIN, VBUSOTG, BSTOUT.

[7 :5]

reserved

[4]

SRC_VBUSOTG: Force VBUSOTG as input source.

0: automatic

1: supply switch is set to VBUSOTG

[3]

SRC_BSTOUT: Force BSTOUT has input source.

0: automatic

1: supply switch is set to BSTOUT

[2]

SRC_VIN: Force VIN has an input source.

0: automatic

1: supply switch is set to VIN

[1]

reserved

[0]

ENA: LDO4 enable bit

0: LDO4 is disabled

1: LDO4 is enabled

STPMIC1

Power supplies control registers

DS12792 - Rev 7

page 92/140

STPMIC1 Datasheet(PDF) 92 Page - STMicroelectronics