CRTOUCH Datasheet, PDF (43/68 Pages) Freescale Semiconductor, Inc – Capacitive and Resistive Touch Sensing Application Specific IC.

Memory Map and Registers Description
Signal
Description
7-0
Electrode Instant
Delta
Electrode 3 to Electrode 0 instant capacitance variation with respect to its baseline.
This register is in signed format, ranging from -128 to 127. If the instant value is
greater than these values, the Delta value is saturated.
4.2.2.5 Slider and rotary dynamic status
Bit
Field
7
CTDSMOV
6
CTDSDIR
5
4
Reserved
3
2
1
0
CTDSVAL
Signal
7
CTDSMOV
6
CTDSDIR
5-4
Reserved
3-0
CTDSVAL
Description
Capacitive Touch Dynamic Status Movement indicates if movement is being detected at
the moment of reading. 1 Indicates that there is movement detected
Capacitive Touch Dynamic Status Direction is used to determine the direction of
movement. 1 indicates an incremental movement. This bit remains with its last value even
if movement has stop and is no longer detected.
Reserved
Capacitive Touch Dynamic Status value indicates the difference in positions from the last
status to the new one. This indicates how many positions have been advanced in the
current direction of movement.
4.2.2.6 Slider and rotary static status
Bit
7
6
5
4
3
2
1
0
Field CTSSTOUCH CTSSINV
Reserved
CTDSVAL
CRTouch Data Sheet, Rev. 3
Freescale Semiconductor
43