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TSC2014IYZGR Datasheet(PDF) 31 Page - Texas Instruments |
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TSC2014IYZGR Datasheet(HTML) 31 Page - Texas Instruments |
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31 / 62 page  Detecting Touch PINTDAV Programmed: As , CFR2,D[15:14]=10 PENIRQ As , CFR2,D[15:14]=11or01 DAV As and , CFR2D[15:14]=00 PENIRQ DAV Programmedfor Host-Controlled Mode (PSM=0) TSC NotAddressed P ogra r mm d for Z -Z ScanMode e 1 2 Reading Z -Data Register 1 WaitingforHosttoWrite IntoControlByte1D[6:3] Sample,Conversion,and PreprocessingforZ ,Z Coordinates 1 2 TouchisStillHere Reading Z -Data Register 2 TSC NotAddressed TSC NotAddressed Detecting Touch WaitingforHosttoWrite IntoControlByte1D[6:3] TouchisDetected t COORDINATE OSC PPRO DLY1 COORDINATE PVS PRE SNS CONV OSC OSC ADC OSC OSC f L OH OH2 1 t t t t N B 2 OH f f f f f § · § · § · § · ˜ ˜ ˜ ¨ ¸ ¨ ¸ ¨ ¸ ¨ ¸ ¨ ¸ ¨ ¸ ¨ ¸ ¨ ¸ © ¹ © ¹ © ¹ © ¹ NOTE:(1)Optional.Ifnotturnedon,itwillbeturnedonbytheScanmode,oncedetected. Detecting Touch PINTDAV Programmed: As , CFR2,D[15:14]=10 PENIRQ As , CFR2,D[15:14]=11or01 DAV As and , CFR2D[15:14]=00 PENIRQ DAV Programmed for Host-Controlled Mode (PSM=0) TSC Not Addressed Z Scan Mode Reading Z -Data Register 1 WaitingforHosttoWrite IntoControlByte1D[6:3] TouchisDetected Reading Z -Data Register 2 TSC NotAddressed TSC NotAddressed Detecting Touch WaitingforHosttoWrite IntoControlByte1D[6:3] TouchisDetected t COORDINATE TurnOn Y+ and X Drivers - (1) Programmedfor: Sample,Conversion, andPreprocessing forZ Coordinate 1 Sample,Conversion, andPreprocessing forZ Coordinate 2 OSC PPRO DLY2 COORDINATE PRE SNS CONV OSC OSC ADC OSC OSC f L OH OH2 1 t t t N B 2 OH f f f f f § · § · § · § · ˜ ˜ ˜ ¨ ¸ ¨ ¸ ¨ ¸ ¨ ¸ ¨ ¸ ¨ ¸ ¨ ¸ ¨ ¸ © ¹ © ¹ © ¹ © ¹ 31 TSC2014 www.ti.com SBAS484B – SEPTEMBER 2010 – REVISED DECEMBER 2016 Product Folder Links: TSC2014 Submit Documentation Feedback Copyright © 2010–2016, Texas Instruments Incorporated The time needed to convert any Z1 and Z2 coordinate under host control (not including the time needed to send the command over the I2C bus) is given by: (9) Figure 29. Example of Z1 and Z2 Coordinate Touch Screen Scan (without Panel Stabilization Time) Using TSMode 3 If the drivers are not turned on before the touch screen scan mode is programmed, the panel stabilization time should be included. In this case, the time needed to convert any single X or Y under host control (not including the time needed to send the command over the I2C bus) is given by: (10) Figure 30. Example of a Z1 and Z2 Coordinate Touch Screen Scan (with Panel Stabilization Time) Using TSMode 3 |
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