CRTOUCH Datasheet, PDF (41/68 Pages) Freescale Semiconductor, Inc – Capacitive and Resistive Touch Sensing Application Specific IC.

Memory Map and Registers Description
Signal
7-0
SLIDEDATA
Description
Reports how many steps the user has displaced after the initial touch. This is useful to
keep track of the motion if at lower sampling rates, more than one step was displaced in
a sample period.
4.2.1.14 Rotate angle
Bit
7
6
Field
5
4
3
2
1
0
ROTATEDATA
Signal
Description
7-0
Reports the total angle of the rotate motion after the initial touch.
ROTATEDATA
4.2.1.15 Zoom size (read only)
Bit
7
6
Field
5
4
3
2
1
0
ZOOMSIZE
Signal
7-0
ZOOMSIZE
Description
Reports how much zoom has been exercised by the user.
4.2.2 Capacitive Touch Sensing Status registers
All the Capacitive Touch Sensing Status registers have read only attributes. Attempting to write any of these registers will return
an invalid write response from CRTouch.
4.2.2.1 Capacitive Electrodes Status register
Bit
7
Field
6
5
Reserved
4
3
2
1
0
E3
E2
E1
E0
CRTouch Data Sheet, Rev. 3
Freescale Semiconductor
41