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TSC2101 Datasheet(PDF) 78 Page - Texas Instruments |
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TSC2101 Datasheet(HTML) 78 Page - Texas Instruments |
78 / 93 page TSC2101 SLAS392D− JUNE 2003 − REVISED MAY 2005 www.ti.com 78 Touch Screen Conversion Initiated by the Host The time needed to convert any single coordinate either X or Y under host-controlled mode (not including the time needed to send the command over the SPI bus) is given by: tcoordinate + tPVS 125 ns tOSC ) NAVG NBITS ) 1 8MHz ƒconv ) n1 ) 12 ) 1 tOSC ) 14 tOSC ) n2 tOSC n1 = 6 ; if ƒconv = 8 MHz 7 ; if ƒconv ≠ 8 MHz n2 = 2 ; if tPVS = 0 µs 0 ; if tPVS ≠ 0 µs Programmed for Host Controlled Mode Detecting Touch Sample,Conversion & Averaging for X−Coordinate Reading X−Data Register Touch is still there Touch is detected /PINTDAV (As /PENIRQ [D15−D14 = 00]) /PINTDAV (As /DATA_AVA [D15−D14 = 01]) /PINTDAV (As /PENIRQ & DATA_AVA [D15−D14 = 10/11]) Waiting for Host to write into REG−00 of PAGE−01 Waiting for Host to write into REG−00 of PAGE−01 REG−00 of PAGE−01 is updated for X Scan Mode /SS DEACTIVATED Detecting Touch tcoordinate + tPVS 125 ns tOSC ) 2 NAVG NBITS ) 1 8MHz ƒconv ) n1 ) 12 ) 1 tOSC ) 20 tOSC ) n2 tOSC n1 = 6 ; if ƒconv = 8 MHz 7 ; if ƒconv ≠ 8 MHz n2 = 2 ; if tPVS = 0 µs 0 ; if tPVS ≠ 0 µs |
Similar Part No. - TSC2101_07 |
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Similar Description - TSC2101_07 |
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