Datasheet

8 Channel Capacitive Touch Sensor with 8 LED Drivers
Datasheet
Revision 1.32 (01-05-12) 38 SMSC CAP1188
DATASHEET
24h R/W
Averaging and
Sampling Config
Controls averaging and sampling
window
39h Page 52
26h R/W Calibration Activate
Forces re-calibration for capacitive
touch sensor inputs
00h Page 54
27h R/W Interrupt Enable
Enables Interrupts associated with
capacitive touch sensor inputs
FFh Page 54
28h R/W Repeat Rate Enable
Enables repeat rate for all sensor
inputs
FFh Page 55
2Ah R/W
Multiple Touch
Configuration
Determines the number of
simultaneous touches to flag a
multiple touch condition
80h Page 56
2Bh R/W
Multiple Touch Pattern
Configuration
Determines the multiple touch
pattern (MTP) configuration
00h Page 56
2Dh R/W Multiple Touch Pattern
Determines the pattern or number of
sensor inputs used by the MTP
circuitry
FFh Page 58
2Fh R/W
Recalibration
Configuration
Determines re-calibration timing and
sampling window
8Ah Page 58
30h R/W
Sensor Input 1
Threshold
Stores the delta count threshold to
determine a touch for Capacitive
Touch Sensor Input 1
40h Page 60
31h R/W
Sensor Input 2
Threshold
Stores the delta count threshold to
determine a touch for Capacitive
Touch Sensor Input 2
40h Page 60
32h R/W
Sensor Input 3
Threshold
Stores the delta count threshold to
determine a touch for Capacitive
Touch Sensor Input 3
40h Page 60
33h R/W
Sensor Input 4
Threshold
Stores the delta count threshold to
determine a touch for Capacitive
Touch Sensor Input 4
40h Page 60
34h R/W
Sensor Input 5
Threshold
Stores the delta count threshold to
determine a touch for Capacitive
Touch Sensor Input 5
40h Page 60
35h R/W
Sensor Input 6
Threshold
Stores the delta count threshold to
determine a touch for Capacitive
Touch Sensor Input 6
40h Page 60
36h R/W
Sensor Input 7
Threshold
Stores the delta count threshold to
determine a touch for Capacitive
Touch Sensor Input 7
40h Page 61
37h R/W
Sensor Input 8
Threshold
Stores the delta count threshold to
determine a touch for Capacitive
Touch Sensor Input 8
40h
38h R/W
Sensor Input Noise
Threshold
Stores controls for selecting the
noise threshold for all sensor inputs
01h Page 61
Table 5.1 Register Set in Hexadecimal Order (continued)
REGISTER
ADDRESS R/W REGISTER NAME FUNCTION
DEFAULT
VALUE PAGE