STPMIC25APQR datasheet(102/145 Pages) STMICROELECTRONICS

Part #	STPMIC25APQR

Description	Highly integrated power management IC for microprocessor units

PDF	145 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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6.5.14

LDO4 ALTERNATE mode control register (LDO4_ALT_CR)

Table 67. LDO4_ALT_CR

INPUT_SRC[1:0]

reserved

R/W

•

Address: 0x56

•

Default: 0b0000000X where X depends on the value programmed in the NVM

•

Description: LDO4 ALTERNATE mode control register.

This register is initialized to the default value in the CHECK&LOAD state. The user can write to these registers to

control enable or to force the power input source of LDO4, which is applied to the ALTERNATE mode (see

Section 5.4.6).

[7:6]

INPUT_SRC[1:0]: force power input source

00: automatic input source selection (the higher voltage is automatically selected)

01: supply input source is VIN

10: supply input source is VBUS

11: automatic input source selection (the higher voltage is automatically selected)

[5:1]

reserved

[0]

EN:

0: LDO4 is disabled

1: LDO4 is enabled

The default value is the same as LDO4_MAIN_CR

STPMIC25

DS14278 - Rev 3

page 102/145

STPMIC25APQR Datasheet(PDF) 102 Page - STMicroelectronics