AS3722 datasheet(64/198 Pages) AMSCO

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[v1-01] 2015-Sep-07

AS3722 − Detailed Descriptions- System Functions

Digital IO Supply Concept

Description

GPIOs can be switched between VSUP_GPIO and VDD_GPIO_lv

supply for the output function. All other digital outputs are

supplied with VDD_GPIO_lv.

Figure 63:

Digital IO Supply Concept

Digital IO Supply Concept: Shows the supply concept for digital inputs and outputs.

GPIO Pins

Description

The device contains 8 GPIO pins. Each of the pins can be

configured as digital input, digital input (with pull-up or

pull-down), ADC input (tri-state), push-pull output (selectable

lower or higher GPIO supply), or open drain output (with or

without pull-up). When configured as output the output source

can be a register bit, or the PWM generator.

The polarity of the input and output signals can be inverted

with the corresponding gpioX_invert bit, all further descriptions

refer to normal (non-inverted) mode.

AS3722

VSUP_GPIO

2.5 … 5.5V

VDD_GPIO_lv

1.7 … 3.6V

GPIO<7:0>

XRES_OUT

XINT

CLK32K

OC_PG

EN5V

ENABLEx

THERM

XRES_IN

AC_OK

LID

PWM_CLK

PWM_DAT

Outputs

Inputs

V2_5

GPIOs

Digital Core

AS3722 Datasheet(PDF) 64 Page - ams AG

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