STPMIC1 datasheet(98/140 Pages) STMICROELECTRONICS

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6.4.11

Boost/switch control register (BST_SW_CR)

Table 48. BST_SW_CR

RESERVED VBUSOTG_DET_DIS SWOUT_PD VBUSOTG_PD OCP_SWOUT_LIM SWOUT_ON VBUSOTG_ON BST_ON

R/W

Address: 0x40

Type: read/write register

Default: 0x00

Description: boost and power switch control register. Register is set to a default value in CHECK&LOAD.

[7]

RESERVED

[6]

VBUSOTG_DET_DIS: PWR_USB_SW detection circuit disable

0: detection circuit is enabled

1: detection circuit is disabled

[5]

SWOUT_PD: SWOUT (PWR_SW) pull-down activation

0: PD inactive

1: PD active when PWR_SW is disabled (SW_ON bit = 0)

[4]

VBUSOTG_PD: PWR_USB_SW pull-down activation

0: PD inactive

1: PD active when PWR_USB_SW is disabled (VBUSOTG_ON bit = 0)

[3]

OCP_SWOUT_LIM: Overcurrent limit protection of PWR_SW switch

0: limit max. output current to 600 mA

1: limit max. output current to 1.1 A

[2]

SWOUT_ON: PWR_SW switch enable bit

0: PWR_SW disabled

1: PWR_SW enabled

[1]

VBUSOTG_ON: PWR_USB_SW switch enable

0: PWR_USB_SW disabled

1: PWR_USB_SW enabled

[0]

BST_ON: BOOST enable bit

0: BOOST disabled

1: BOOST enabled

STPMIC1

Power supplies control registers

DS12792 - Rev 7

page 98/140

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