AS3658F-BCTP datasheet(33/158 Pages) AMSCO

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AS3658

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

4…3

GPIO1IOSF

ROM

R/W

00b

input / output signal is written to or set by GPIO1Bit

in the GPIO Bit register

01b

PWM (O) / WDOG (I)

if used for PWM, pwm_h_time and pwm_l_time

define the high and low time of this output and only

allowed for GPIO1Mode=011b,100b

10b

Protection of DCDC stepUp1 GPIO 1 (O)

11b

Battery charging EOC indication output GPIO 1 (O)

If EOC=1 then GPIO1=1. DCDC_CURR3 is used as

output, if CURR_GPIO1 is used for external DCDC

controller

GPIO1Invert

ROM

R/W

normal polarity of input / output signal

inverted polarity of input / output signal

(not possible for PWM out)

7…6

GPIO1Pulls

ROM

R/W

00b

no pull-up or pull-down resistor is enabled in all

modes

01b

pull-down resistor is enabled in digital input mode

(clamp disabled)

10b

pull-up resistor is enabled for

GPIO1Mode=000b,010b,011b,100b (clamp

disabled)

11b

enable active clamp circuit for

GPIO1Mode=000b,010b,011b,100b (pull-up/down

disabled)

Table 25. CURR2_GPIO2 Bit definition

Addr: 19

GPIO2

This register controls the mode of the CURR1_GPIO2 Pin

Bit

Bit Name

Default Access

Description

2…0

GPIO2Mode

ROM

R/W

000b

digital open drain NMOS output

001b

digital push-pull output (no PWM out possible)

010b

digital input

011b

digital open drain current sink operation Current

defined by curr2_current

100b

digital open drain switch operation On resistance

defined by curr2_current

101b

111b

high impedance

Table 24. CURR1_GPIO1 Bit definition

Addr: 18

GPIO1

This register controls the mode of the CURR1_GPIO1 Pin

Bit

Bit Name

Default Access

Description

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