AS3722 datasheet(107/199 Pages) AMSOSRAM

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[v1-01] 2015-Sep-07

AS3722 − Register Description

Figure 96:

GPIO1control

Addr:09h

GPIO1control

Bit

Bit Name

Default

Access

Bit Description

7gpio1_invert

Invert GPIO input/output

0 : Normal mode

1 : Invert input or output

6:3

gpio1_iosf

Select the GPIO special function

0 : Normal i/o operation

1 : Interrupt output

2 : VSUP_VBAT_low undebounced output

3 : GPIO interrupt input

4 : PWM input (internal PWM overide)

5 : Voltage_stby input: rising edge .. Goto Standby;

(Leave standby by arbitrary interrupt)

6 : OC_PG_SD0 function on GPIO

7 : pwr_good output

8 : Q32k output (if osc_pd=1 then internal RC

oscillator with 32kHz divider is used)

9 : Watchdog input

10 : NC

11 : Soft reset input

12 : PWM output

13 : VSUP_VBAT_low debounced output

14 : OC_PG_SD6 function on GPIO

15 : NC

2:0

gpio1_mode

RW_SM

Selects the GPIO mode (I, I/O, Tri, Pulls)

0 : Input

1 : Output (push and pull) VSUP_GPIO

2 : Output/Input (open drain, only NMOS is active)

3 : ADC input (Tristate)

4 : Input with pull-up to VDD_GPIO_lv

5 : Input with pull-down

6 : Output/Input open drain (nmos) with pull-up to

VDD_GPIO_lv,

7 : Output (push and pull) VDD_GPIO_lv

AS3722 Datasheet(PDF) 107 Page - ams-OSRAM AG

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