Datasheet

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Turn On Drivers: X+, X-
Issue Interrupt
PENIRQ
Is PENSTS =1
Start Clock
Is Panel Voltage
Stabilization Done
Convert X coordinates
Store X Coordinates in X
Register
Set /DAV = 0
Turn off clock
Screen
Touch
Done
Go To Host Controlled
Conversion
N
Power up ADC
Power Down ADC
Is Data
Averaging
N
N
Y
Done
Host Writes A/D
Converter Control
Register
Reset PENIRQ
Start Clock
Are Drivers On
Y
N
Y
Done
TSC2301
SLAS371D – SEPTEMBER 2002 – REVISED AUGUST 2004
Touch Screen Scan X Coordinate Host Initiated
Figure 55. X Coordinate Reading Initiated by Host
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