Multiple Channel Capacitive Touch Sensor and LED Driver
Datasheet
Chapter 5 Register Description
The registers shown in Table 5.1 are accessible through the SMBus. An entry of ‘-’ indicates that the
bit is not used and will always read ‘0’.
Table 5.1 Register Set in Hexadecimal Order
REGISTER
ADDRESS
DEFAULT
VALUE
R/W
REGISTER NAME
FUNCTION
PAGE
Controls general sleep states and
power dissipation
00h
03h
R/W
Main Status Control
00h
00h
Page 34
Returns the state of the Cap
Sensor group and buttons 1 - 6
and slider controls
R
Button Status 1
Page 35
04h
05h
R
R
Button Status 2
Build Revision
Returns the state of buttons 7 - 14
00h
1Xh
Page 35
Page 36
Stores the functional revision of
the device build
Returns the relative position of a
press on the slider or volumetric
data
R-C /
R/W
Slider Position /
Volumetric Data
06h
08h
09h
00h
5Dh
01h
Page 37
Page 38
Page 38
Stores a fixed value that Identifies
SMSC
R
Vendor ID
Controls the step used for
volumetric data increases for a
slide
R/W
Volumetric Step
Stores the noise flags for sensors
1 - 7
0Ah
0Bh
0Ch
0Dh
0Eh
0Fh
10h
11h
12h
13h
R
R
Noise Flag Status 1
Noise Flag Status 2
Lid Closure Status 1
Lid Closure Status 2
GPIO Status
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
Page 39
Page 39
Page 39
Page 39
Page 40
Page 40
Page 41
Page 41
Page 41
Page 41
Stores the noise flags for sensors
8 - 14
Stores lid closure status bits for
sensors 1 - 7
R
Stores lid closure status bits for
sensors 8 - 14
R
Stores the status of LED1 / GPIO1
through LED8 / GPIO8 pins
R-C
R-C
R
Returns the state of the Grouped
sensors
Group Status
Sensor 1 Delta
Count
Stores the delta count for CS1
Stores the delta count for CS2
Stores the delta count for CS3
Stores the delta count for CS4
Sensor 2 Delta
Count
R
Sensor 3 Delta
Count
R
Sensor 4 Delta
Count
R
SMSC CAP1014
Revision 1.65 (08-11-09)
DATA2S9HEET
SMSC [ SMSC CORPORATION ]
