Datasheet
www.ti.com
Programmedfor
Self-Control
X-YScanMode
(PSM=1)
(ControlByte1
D[6:3]=0001)
TSC
NotAddressed
DetectingTouch
Sample,Conversion,and
Preprocessingfor
YCoordinate
Detecting
Touch
Sample,Conversion,and
Preprocessingfor
XCoordinate
Sample,Conversion,and
Preprocessingfor
YCoordinate
Detecting
Touch
Detecting
Touch
Reading
X-Data
Register
Reading
Y-Data
Register
TouchisDetected TouchisDetected
TouchisDetected
PINTDAV Programmed:
As ,
CFR2,D[15:14]=10
PENIRQ
As
CFR2,D[15:14]=11or01
DAV,
As and ,
CFR2,D[15:14]=00
PENIRQ DAV
t
COORDINATE
TSC2004
SBAS408E – JUNE 2007 – REVISED MARCH 2008
Table 31. Preprocessing Delay
L
PPRO
=
M = W = FOR B = 12 BIT FOR B = 10 BIT
1 1, 4, 8, 16 2 2
3, 7 1 28 24
7 3 31 27
15 1 31 29
15 3 34 32
15 7 38 36
Figure 39. Example of an X and Y Coordinate Touch Screen Scan using TSMode 1
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