CAP1088 Datasheet, PDF (33/72 Pages) SMSC Corporation – 8 Channel Capacitive Touch Sensor with 8 LED Drivers

8 Channel Capacitive Touch Sensor with 8 LED Drivers
Datasheet
Table 5.1 Register Set in Hexadecimal Order (continued)
REGISTER
ADDRESS
28h
2Ah
2Fh
30h
31h
32h
33h
34h
35h
36h
37h
38h
39h
40h
41h
42h
43h
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
REGISTER NAME
FUNCTION
Repeat Rate Enable
Enables repeat rate for Capacative
Touch Sensors
Multiple Press
Configuration
Determines the number of
simultaneous touches to flag a
multiple touch condition
Recalibration
Configuration
Determines re-calibration timing and
sampling window
Sensor 1 Threshold
Stores the delta count threshold to
determine a touch for Capacitive
Touch Sensor 1
Sensor 2 Threshold
Stores the delta count threshold to
determine a touch for Capacitive
Touch Sensor 2
Sensor 3 Threshold
Stores the delta count threshold to
determine a touch for Capacitive
Touch Sensor 3
Sensor 4 Threshold
Stores the delta count threshold to
determine a touch for Capacitive
Touch Sensor 4
Sensor 5 Threshold
Stores the delta count threshold to
determine a touch for Capacitive
Touch Sensor 5
Sensor 6 Threshold
Stores the delta count threshold to
determine a touch for Capacitive
Touch Sensor 6
Sensor 7 Threshold
Stores the delta count threshold to
determine a touch for Capacitive
Touch Sensor 7
Sensor 8 Threshold
Stores the delta count threshold to
determine a touch for Capacitive
Touch Sensor 8
Sensor Noise
Threshold 1
Stores controls for selecting the
noise threshold for sensors 1 - 4
Sensor Noise
Threshold 2
Stores controls for selecting the
noise threshold for sensors 5 - 8
Standby Configuration Registers
Standby Channel
Controls which sensors are enabled
while in standby
Standby Configuration
Controls averaging and cycle time
while in standby
Standby Sensitivity
Controls sensitivity settings used
while in standby
Standby Threshold
Stores the touch detection threshold
for active sensors in standby
DEFAULT
VALUE
FFh
80h
8Bh
40h
40h
40h
40h
40h
40h
40h
40h
55h
55h
00h
1Dh
02h
40h
PAGE
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SMSC CAP1088
33
DATASHEET
Revision 1.1 (08-05-09)