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ALC5610-GR Datasheet(PDF) 35 Page - Realtek Semiconductor Corp. |
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ALC5610-GR Datasheet(HTML) 35 Page - Realtek Semiconductor Corp. |
35 / 93 page ![]() ALC5610 Datasheet AC’97 Audio Codec + Touch Panel Controller + Voice PCM Interface 26 Track ID: JATR-1076-21 Rev. 1.4 7.9. Touch Panel Control The ALC5610 provides 4-wire resistive touch panel control. X-position, Y-position, Pen-down detection, touch pressure, and AUX measurement are supported by using AUX_ADC. There are 2 modes within the touch panel measurement: Continuous mode (Reg76[14]=1), and polling mode (Reg76[14]=0). Figure 17. 4-Wire Resistive Touch Panel Circuit Continuous Mode The ALC5610 automatically initializes the measurement at the rate set in Reg74[1:0], and sends the measured data back to the AC’97 Controller. It is strongly recommended that the total measure time of one measure cycle (Delay time + measure time) not be longer than the measurement frame period (1/measurement rate). Polling Mode In polling mode the AC’97 Controller starts each measurement by setting the measure item and writing Reg76[15] =1. The ALC5610 will clear the Reg76[15] after measurement is complete. |
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