AK4184 Datasheet, PDF (31/36 Pages) Asahi Kasei Microsystems – TSC with Keypad Scanner and GPIO Expander

CONTROL SEQUENCE
■ X -, Y- Coordinate measurements
CSN
pin
repeat
Cycle
repeat
X, 0
X, 1
X, 0
Y, 0
Y, 1
Y, 0
X: X-measurement, Y:Y-measurement.
0: PD bit = “0” setting, 1: PD bit = “1” setting.
Figure 18. Timing Sequence for detecting X, Y position
[AK4184]
MS0603-E-00
31
2007/04