AS3658 datasheet(25/158 Pages) AMSCO

25 / 158 page

Table 10. Step Up DC/DC Bit definitions

Addr: 33

Step Up1 DC/DC control

This register controls the different modes of the step up1 DCDC

converter

Bit

Bit Name

Default Access

Description

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Revision 1v13

24 - 157

AS3658

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

4:0

stpup1_v

00h

R/W

Defines the tuning current at DCDC_fb1 pin;

00000

0 µA

00001

1 µA

.....

11111

31 µA

stpup1_clkinv

00h

R/W

Invert input clock of step up1 converter;

Use positive edge of internal clk

Use negative edge of internal clk

stpup1_shortprot

00h

Enables Protection and Detection circuit for DCDC step

up1

No protection and load detection

Short protection and load detection enabled

stpup1_oc_timeout

00h

Controls GPIO1 switch off, after overcurrent timeout (5ms)

for DCDC step up1

disabled

enabled

Table 11. Step Up DC/DC Bit definitions

Addr: 34

Step Up2 DC/DC control

This register controls the different modes of the step up2 DCDC

converter

Bit

Bit Name

Default Access

Description

4:0

stpup2_v

00h

R/W

Defines the tuning current at DCDC_fb2 pin;

00000

0 µA

00001

1 µA

.....

11111

31 µA

6:5

stpup2_fb

00h

R/W

Controls the feedback source

DCDC_FB enabled (external resistor divider)

DCDC_CURR1 feedback enabled (feedback

through white LEDs)

DCDC_CURR2 feedback enabled (feedback

through white LEDs)

DCDC_CURR3 feedback enabled (feedback

through white LEDs)

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