TC35680FSG datasheet(37/91 Pages) TOSHIBA

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TC35680FSG-002/TC35681FSG-002

2019-04-04

4.6. General-purpose I/O (GPIO) Function

Feature

The GPIO pin has the following features;



Reference I/O power supply: VDDIO



Pin number: 18 for QFN package



General-purpose I/O function. The ON/OFF control of input and output can be done individually.



Reading input data and writing output data can be done for each pin or a group of several pins.



Interrupt function is supported. The detection method can be selected from among the followings;



Edge detection (a rising edge, a falling edge, and both edges)



Level detection (High level and Low level)



Built-in programmable pull-up and pull-down resistors.



Output drive current can be selected (1 mA, 1.5 mA (initial), 2 mA, and 4 mA).



Before the transition to a low power mode, each GPIO holds the status of the I/O (I/O latch function).

The diagram of the GPIO pin which supports an ADC input signal is shown in Figure 4-2.

Figure 4-2 Diagram of the GPIO which supports ADC input signal

IC pin

ON/OFF

Output signal

Input signal

Output control

Pull-up regist er control

Input control

Pull-down resister control

ON/OFF

ADCIN

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