CAP1114 Datasheet, PDF (34/102 Pages) SMSC Corporation – Multiple Channel Capacitive Touch Sensor and LED Driver

Multiple Channel Capacitive Touch Sensor and LED Driver
Datasheet
Chapter 6 Register Description
The registers shown in Table 6.1 are accessible through the SMBus. An entry of ‘-’ indicates that the
bit is not used and will always read ‘0’.
REGISTER
ADDRESS
00h
03h
04h
05h
06h
08h
09h
0Ah
0Bh
0Ch
0Dh
0Eh
0Fh
10h
11h
12h
13h
R/W
R/W
R
R
R
R-C /
R/W
R
R/W
R
R
R
R
R-C
R-C
R
R
R
R
Table 6.1 Register Set in Hexadecimal Order
REGISTER NAME
FUNCTION
DEFAULT
VALUE
Main Status Control
Controls general power states
00h
Returns the state of the Cap
Button Status 1
Sensor group and buttons 1 - 6
00h
and slider controls
Button Status 2
Returns the state of buttons 7 - 14
00h
Build Revision
Stores the functional revision of
the device build
10h
Slider Position /
Volumetric Data
Returns the relative position of a
press on the slider or volumetric
data
00h
Vendor ID
Stores a fixed value that identifies
SMSC
5Dh
Controls the step used for
Volumetric Step
volumetric data increases for a
01h
slide
Noise Status 1
Stores the noise flags for sensors
1-7
00h
Noise Status 2
Stores the noise flags for sensors
8 - 14
00h
Lid Closure Status 1
Stores lid closure status bits for
sensors 1 - 7
00h
Lid Closure Status 2
Stores lid closure status bits for
sensors 8 - 14
00h
GPIO Status
Stores the status of LED1 / GPIO1
through LED8 / GPIO8 pins
00h
Group Status
Returns the state of the Grouped
sensors
00h
Sensor 1 Delta
Count
Stores the delta count for CS1
00h
Sensor 2 Delta
Count
Stores the delta count for CS2
00h
Sensor 3 Delta
Count
Stores the delta count for CS3
00h
Sensor 4 Delta
Count
Stores the delta count for CS4
00h
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Revision 1.1 (02-04-11)
34
DATASHEET
SMSC CAP1114