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ALC5611-GR Datasheet(PDF) 29 Page - Realtek Semiconductor Corp.

Part # ALC5611-GR
Description  AC??7 AUDIO CODEC TOUCH PANEL CONTROLLER
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Manufacturer  REALTEK [Realtek Semiconductor Corp.]
Direct Link  https://www.realtek.com/en/
Logo REALTEK - Realtek Semiconductor Corp.

ALC5611-GR Datasheet(HTML) 29 Page - Realtek Semiconductor Corp.

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ALC5611
Datasheet
AC’97 Audio Codec + Touch Panel Controller
21
Track ID: JATR-1076-21
Rev. 1.1
7.11. GPIO and Interrupt
The ALC5611 supports up to five GPIOs. Each GPIO can be configured as Input/Output by Reg4C.
When GPIOs are configured as Input, the status will be indicated in Reg54 and Slot 12. When GPIOs are
configured as Output, Reg5C is used to drive GPIOs to High (1b) or Low (0b). The status can be read in
Reg54.
Interrupt request (IRQ) function can be configured as:
• Sticky by setting Reg50
• Changed polarity by setting Reg4E
• Wake-up by setting Reg52
The wake-up function will drive SDATA_In ‘high’ when the AC-Link is in sleep mode, and set
GPIO_INT (Slot12 bit0) when the AC-Link is awake. The wake up function can only be enabled when
Wake-up control (Reg5E[1])=1. The driver can write each bit of Reg54=1 to clear each IRQ status flag.
GPIO pin2 can be configured and pin-shared with IRQ_Output by setting Reg56.
Figure 10. GPIO Implementation
There are some internal events (pen-down, over-temperature, MICBIAS short detect) where GPIOs can
be an interrupt source. GPIO Internal event application is located in Reg4C, Reg4E, Reg50, Reg52, and
Reg54.


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