Datasheet

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t
COORDINATE
+
OH1
f
OSC
)
ǒ
t
PVS
)t
PRE
)t
SNS
)
OH
DLY1
f
OSC
Ǔ
)N @
ǒ(
B)2
)
@
f
OSC
f
ADC
)OH
CONV
Ǔ
@
ǒ
1
f
OSC
Ǔ
)
ǒ
L
PPRO
f
OSC
Ǔ
(11)
Detecting
Touch
PINTDAV Programmed:
As ,
CFR2,D[15:14]=10
PENIRQ
As ,
CFR2,D[15:14]=11or01
DAV
As and ,
CFR2,D[15:14]=00
PENIRQ DAV
Programmedfor
Host-Controlled
Mode
(PSM=0)
TSC
NotAddressed
TSC
NotAddressed
TSC
NotAddressed
P ograr mm d
for
X
ScanMode
e
Reading
X-Data
Register
Detecting
Touch
WaitingforHosttoWrite
IntoControlByte1D[6:3]
Sample,Conversion,and
PreprocessingforXCoordinate
WaitingforHosttoWrite
IntoControlByte1D[6:3]
TouchisDetected
TouchisStillHere
t
COORDINATE
TSC2004
SBAS408E – JUNE 2007 – REVISED MARCH 2008
The time needed to convert any single coordinate (either X or Y) under host control (not including the time
needed to send the command over the I
2
C bus) is given by:
Figure 45. Example of a Single X Coordinate Touch Screen Scan
(with Panel Stabilization Time) using TSMode 3
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Product Folder Link(s): TSC2004