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AD7889 Datasheet(PDF) 19 Page - Analog Devices

Part # AD7889
Description  Low Voltage Controller for Touch Screens
PDF  40 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7889 Datasheet(HTML) 19 Page - Analog Devices

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Data Sheet
AD7879/AD7889
Rev. D | Page 19 of 40
GPIO Interrupt Enable (Bit 12, Control Register 3,
Address 0x03)
The GPIO pin can operate as an interrupt source to trigger the
INT output. This is controlled by Bit 12 in Control Register 3.
If the GPIO ALERT interrupt enable bit is set to 0, the GPIO can
trigger INT. If this bit is set to 1, the GPIO cannot trigger INT.
INT is asserted if the GPIO data register bit is set when the
GPIO is configured as an input, provided that INT is enabled.
INT is triggered only when the GPIO is configured as an input,
that is, when GPIO DIR = 1.
INT is cleared only when the GPIO signal or the GPIO enable
bit changes.



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