Touchscreen controller, Touchscreen, Wire/5-wire – Eurotech Appliances ZEUS PXA270 User Manual
Page 50
ZEUS Technical Manual
Detailed hardware description
© 2007 Eurotech Ltd Issue D
50
Touchscreen controller
The ZEUS supports 4-wire and 5-wire analogue resistive touchscreens using the
controller available within the Wolfson WM9712L audio CODEC. The touchscreen
controller supports the following functions:
•
X co-ordinate measurement.
•
Y co-ordinate measurement.
•
Pen down detection with programmable sensitivity.
•
Touch pressure measurement (4-wire touchscreen only).
The touchscreen can be used as a wake-up source for PXA270 from sleep mode.
The touchscreen interface is broken out on the header J1. For details see
, page
.