MSP430FR6889 Datasheet, PDF (91/176 Pages) Texas Instruments – Mixed-Signal Microcontrollers

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MSP430FR6889, MSP430FR68891, MSP430FR6888, MSP430FR6887
MSP430FR5889, MSP430FR58891, MSP430FR5888, MSP430FR5887
SLASE32A – AUGUST 2014 – REVISED MARCH 2015
6.11.23.2 Capacitive Touch Functionality Port P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, and PJ
Figure 6-2 shows the Capacitive Touch functionality that all port pins provide. The Capacitive Touch
functionality is controlled using the Capacitive Touch IO control registers CAPTIO0CTL and CAPTIO1CTL
as described in the MSP430FR58xx Family User's Guide( SLAU367). The Capacitive Touch functionality
is not shown in the other pin schematics.
Analog Enable
PxREN.y
Capacitive Touch Enable 0
Capacitive Touch Enable 1
DVSS
0
DVCC
1
1
Direction Control
PxOUT.y
Output Signal
Input Signal
QD
EN
0
1
Px.y
Capacitive Touch Signal 0
Capacitive Touch Signal 1
NOTE: Functional representation only.
Figure 6-2. Capacitive Touch IO Functionality
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Detailed Description
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