Datasheet

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Start Clock
Turn off clock
N
Turn On Drivers: Y+, X-
Is Panel Voltage
Stabilization
Done
Convert Z1
coordinates
Store Z1 Coordinates
in Z1 Register
Set /DAV = 0Power up ADC
Power Down ADC
Is Data
Averaging
Done
N
Y
Y
N
Convert Z2
coordinates
Store Z2 Coordinates
in Z2 Register
Is Data
Averaging
Done
N
DONE
Y
Host Writes A/D
Converter Control
Register
Reset PENIRQ
Are Drivers On
Start Clock
N
Y
Issue Interrupt
PENIRQ
Is PENSTS =1
Screen
Touch
Go To Host
Controlled Conversion
N
DONE
Turn On Drivers: X+, X-
Host Writes A/D
Converter Control
Register
Reset PENIRQ
Done
TSC2301
SLAS371D – SEPTEMBER 2002 – REVISED AUGUST 2004
Host Controlled Z Coordinate
Figure 60. Z Coordinate Reading Controlled by Host
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