STPMIC25BPQR datasheet(77/145 Pages) STMICROELECTRONICS

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6.3

Control registers

6.3.1

Main control register (MAIN_CR)

Table 42. MAIN_CR

STANDBY_PWRCTRL_SEL[1:0]

PWRCTRL3_POL

PWRCTRL2_POL

PWRCTRL1_POL RREQ_EN SWOFF

R/W

•

Address: 0x10

•

Default: 0b10000000

•

Description: main control register (see Table 26 ). This register is initialized to the default value in the

CHECK&LOAD state.

[7]

reserved: should be written to '1'

[6:5]

STANDBY_PWRCTRL_SEL[1:0]: Source selection to switch to the PMIC state machine in the

RUN state or the STANDBY state.

(only valid in the POWER_ON state)

00: No source (the PMIC operates in the RUN state)

01: PWRCTRL1 control source

10: PWRCTRL2 control source

11: PWRCTRL3 control source

(PWRCTRLx inactive: RUN state; PWRCTRLx active: STANDBY state)

[4]

PWRCTRL3_POL: specifies PWRCTRL3 pin polarity.

0: PWRCTRL3 active low

1: PWRCTRL3 active high

(see Table 26)

[3]

PWRCTRL2_POL: specifies PWRCTRL2 pin polarity.

0: PWRCTRL2 active low

1: PWRCTRL2 active high

(see Table 26)

[2]

PWRCTRL1_POL: specifies PWRCTRL1 pin polarity.

0: PWRCTRL1 active low

1: PWRCTRL1 active high

(see Table 26)

[1]

RREQ_EN: Allows the PMIC power cycle when the software switch OFF bit is (SWOFF) set.

0: PMIC goes in OFF state when SWOFF bit is set

1: PMIC performs a power cycle when the SWOFF bit is set

[0]

SWOFF: Software switch OFF bit.

0: no effect

1: switch-OFF requested (turn-off condition). The PMIC goes into the POWER_DOWN state

immediately.

STPMIC25

DS14278 - Rev 3

page 77/145

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