User's Manual

Table Of Contents
42.2.6 Random Number Generation ..................................................................................................1500
42.3 Interrupt ...........................................................................................................................................1501
42.4 Usage Notes .....................................................................................................................................1501
42.4.1 Standby Mode .........................................................................................................................1501
42.4.2 Setting the Module Stop Function ..........................................................................................1501
42.4.3 TSIP-Lite Library ...................................................................................................................1501
43. Capacitive Touch Sensing Unit (CTSU) ..................................................................................... 1502
43.1 Overview .........................................................................................................................................1503
43.2 Register Descriptions .......................................................................................................................1504
43.2.1 CTSU Control Register 0 (CTSUCR0) ..................................................................................1504
43.2.2 CTSU Control Register 1 (CTSUCR1) ..................................................................................1506
43.2.3 CTSU Synchronous Noise Reduction Setting Register (CTSUSDPRS) ................................1507
43.2.4 CTSU Sensor Stabilization Wait Control Register (CTSUSST) ............................................1508
43.2.5 CTSU Measurement Channel Register 0 (CTSUMCH0) .......................................................1509
43.2.6 CTSU Measurement Channel Register 1 (CTSUMCH1) .......................................................1510
43.2.7 CTSU Channel Enable Control Register 0 (CTSUCHAC0) ..................................................1511
43.2.8 CTSU Channel Enable Control Register 1 (CTSUCHAC1) ..................................................1512
43.2.9 CTSU Channel Enable Control Register 2 (CTSUCHAC2) ..................................................1513
43.2.10 CTSU Channel Enable Control Register 3 (CTSUCHAC3) ..................................................1514
43.2.11 CTSU Channel Enable Control Register 4 (CTSUCHAC4) ..................................................1515
43.2.12 CTSU Channel Transmit/Receive Control Register 0 (CTSUCHTRC0) ..............................1516
43.2.13 CTSU Channel Transmit/Receive Control Register 1 (CTSUCHTRC1) ..............................1517
43.2.14 CTSU Channel Transmit/Receive Control Register 2 (CTSUCHTRC2) ..............................1518
43.2.15 CTSU Channel Transmit/Receive Control Reg
ister 3 (CTSUCHTRC3) ..............................1519
43.2.16 CTSU Channel Transmit/Receive Control Register 4 (CTSUCHTRC4) ..............................1520
43.2.17 CTSU High-Pass Noise Reduction Control Register (CTSUDCLKC) ..................................1521
43.2.18 CTSU Status Register (CTSUST) ..........................................................................................1522
43.2.19 CTSU High-Pass Noise Reduction Spectrum Diffusion Control Register (CTSUSSC) ........ 1524
43.2.20 CTSU Sensor Offset Register 0 (CTSUSO0) .........................................................................1525
43.2.21 CTSU Sensor Offset Register 1 (CTSUSO1) .........................................................................1526
43.2.22 CTSU Sensor Counter (CTSUSC) .........................................................................................1527
43.2.23 CTSU Reference Counter (CTSURC) ....................................................................................1528
43.2.24 CTSU Error Status Register (CTSUERRS) ............................................................................1529
43.3 Operation .........................................................................................................................................1531
43.3.1 Principles of Measurement Operation ....................................................................................1531
43.3.2 Measurement Modes ...............................................................................................................1533
43.3.2.1 Initial Setting Flowchart ................................................................................................1534
43.3.2.2 Status Counter ...............................................................................................................1535
43.3.2.3 Self-Capacitance Single Scan Mode Operation ............................................................1536
43.3.2.4 Self-Capacitance Multi-Scan Mode Operation .............................................................1538
43.3.2.5 Mutual Capacitance Full Scan Mode Operation ...........................................................1540