AS3658 datasheet(38/158 Pages) AMSCO

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AS3658

Data Sheet Confidential - Detail ed Descri ption-Power Management Functions

Note: The original digital interface on/off signal is used to switch between CURR3_GPIO3 and CURR4_GPIO4; e.g.

if ldo_rf1_gpio is set, ldo_rf1_on is (re-)used to selected either CURR3_GPIO3 (ldo_rf1_on=1) or

CURR4_GPIO4 (ldo_rf1_on=0) as input.

Table 32. Regulator GPIO Control Registers

Addr: 31

Reg GPIO Ctrl

This register enables/disables GPIO control of the regulators

Bit

Bit Name

Default Access

Description

ldo_rf1_gpio

R/W

ldo_rf1 on/off control

Controlled by software (ldo_rf1_on)

Controlled by CURR3_GPIO3, if ldo_rf1_on=1 and

GPIO3IOSF=10b

Controlled by CURR4_GPIO4, if ldo_rf1_on=0 and

GPIO4IOSF=10b

ldo_rf2_gpio

R/W

ldo_rf2 on/off control

Controlled by software (ldo_rf2_on)

Controlled by CURR3_GPIO3, if ldo_rf2_on=1 and

GPIO3IOSF=10b

Controlled by CURR4_GPIO4, if ldo_rf2_on=0 and

GPIO4IOSF=10b

ldo_dig1_gpio

R/W

ldo_dig1 on/off control

Controlled by software (ldo_dig1_on)

Controlled by CURR3_GPIO3, if ldo_dig1_on=1 and

GPIO3IOSF=10b

Controlled by CURR4_GPIO4, if ldo_dig1_on=0 and

GPIO4IOSF=10b;

do not set ldo_dig1_gpio if DCDC SD1 is in external

controller mode (sd1_1A_mode = 1100b)

ldo_dig2_gpio

R/W

ldo_dig2 on/off control

Controlled by software (ldo_dig2_on)

Controlled by CURR3_GPIO3, if ldo_dig2_on=1 and

GPIO3IOSF=10b

Controlled by CURR4_GPIO4, if ldo_dig2_on=0 and

GPIO4IOSF=10b

do not set ldo_dig2_gpio if DCDC SD1 is in external

controller mode (sd1_1A_mode = 1100b)

sd1_gpio

R/W

sd1 on/off control

Controlled by software (sd1_on)

Controlled by CURR3_GPIO3, if sd1_on=1 and

GPIO3IOSF=10b

Controlled by CURR4_GPIO4, if sd1_on=0 and

GPIO4IOSF=10b

sd2_gpio

R/W

sd2 on/off control (or sd2 on/off control in 1A mode)

Controlled by software (sd2_on)

Controlled by CURR3_GPIO3, if sd2_on=1 and

GPIO3IOSF=10b

Controlled by CURR4_GPIO4, if sd2_on=0 and

GPIO4IOSF=10b

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