8 Channel Capacitive Touch Sensor with 2 LED Drivers
Datasheet
Table 5.1 Register Set in Hexadecimal Order (continued)
REGISTER
ADDRESS
DEFAULT
VALUE
R/W
REGISTER NAME
FUNCTION
PAGE
Standby Configuration Registers
Controls which sensor inputs are
40h
41h
42h
43h
44h
R/W
R/W
R/W
R/W
R/W
Standby Channel
Standby Configuration
Standby Sensitivity
Standby Threshold
Configuration 2
00h
39h
02h
40h
40h
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Page 61
Page 62
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enabled while in standby
Controls averaging and cycle time
while in standby
Controls sensitivity settings used
while in standby
Stores the touch detection threshold
for active sensor inputs in standby
Stores additional configuration
controls for the device
Base Count Registers
Sensor Input 1 Base
Count
Stores the reference count value for
sensor input 1
50h
51h
52h
53h
54h
55h
56h
57h
R
R
R
R
R
R
R
R
C8h
C8h
C8h
C8h
C8h
C8h
C8h
C8h
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Page 64
Page 64
Page 64
Page 64
Page 64
Page 64
Page 64
Sensor Input 2 Base
Count
Stores the reference count value for
sensor input 2
Sensor Input 3 Base
Count
Stores the reference count value for
sensor input 3
Sensor Input 4 Base
Count
Stores the reference count value for
sensor input 4
Sensor Input 5 Base
Count
Stores the reference count value for
sensor input 5
Sensor Input 6 Base
Count
Stores the reference count value for
sensor input 6
Sensor Input 7 Base
Count
Stores the reference count value for
sensor input 7
Sensor Input 8 Base
Count
Stores the reference count value for
sensor input 8
LED Controls
Controls the output type for the LED
outputs
71h
72h
R/W
R/W
LED Output Type
00h
00h
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Sensor Input LED
Linking
Controls linking of sensor inputs to
LED channels
73h
74h
R/W
R/W
LED Polarity
Controls the output polarity of LEDs
Controls the output state of the LEDs
00h
00h
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LED Output Control
LED Linked Transition
Control
Controls the transition when LEDs
are linked to CS channels
77h
79h
R/W
R/W
00h
00h
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Page 68
Controls the mirroring of duty cycles
for the LEDs
LED Mirror Control
SMSC CAP1128
Revision 1.32 (01-05-12)
DATA3S9HEET
SMSC [ SMSC CORPORATION ]
