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AS3722 数据表(PDF) 64 Page - ams AG |
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AS3722 数据表(HTML) 64 Page - ams AG |
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64 / 198 page  Page 64 ams Datasheet Document Feedback [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 |
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