Multiple Channel Capacitive Touch Sensor and LED Driver
Datasheet
Threshold, the appropriate status bit is set in the Lid Closure Status register (see Section 5.8, "Lid
Closure Status Registers").
The Lid Closure Threshold is proportional to the programmed Sensor Threshold as shown in
Table 5.42.
Table 5.44 CSx_LD_TH Bit Decode
CSX_LD_TH[1:0]
1
0
THRESHOLD DIVIDE SETTING
0
0
1
1
0
1
0
1
6.25%
12.5%
25% (default)
50%
5.30.1
Lid Closure Threshold 1 Register
The Lid Closure Threshold 1 register controls the lid closure threshold for Capacitive Touch Sensors
1-4.
Bits 7-6 - CS4_LD_TH[1:0] - Controls the lid closure threshold for Capacitive Touch Sensor 4.
Bits 5-4 - CS3_LD_TH[1:0] - Controls the lid closure threshold for Capacitive Touch Sensor 3.
Bits 3-2 - CS2_LD_TH[1:0] - Controls the noise threshold for Capacitive Touch Sensor 2.
Bits 1-0 - CS1_LD_TH[1:0] - Controls the noise threshold for Capacitive Touch Sensor 1.
5.30.2
Lid Closure Threshold 2 Register
The Lid Closure Threshold 2 register controls the lid closure threshold for Capacitive Touch Sensors
5 - 8.
Bits 7-6 - CS8_LD_TH[1:0] - Controls the lid closure threshold for Capacitive Touch Sensor 8 (one of
the grouped sensors).
Bits 5-4 - CS7_LD_TH[1:0] - Controls the lid closure threshold for Capacitive Touch Sensor 7.
Bits 3-2 - CS6_LD_TH[1:0] - Controls the lid closure threshold for Capacitive Touch Sensor 6.
Bits 1-0 - CS5_LD_TH[1:0] - Controls the lid closure threshold for Capacitive Touch Sensor 5.
5.30.3
Lid Closure Threshold 3 Register
The Lid Closure Threshold 3 register controls the lid closure threshold for Capacitive Touch Sensors
9 - 12.
Bits 7-6 - CS12_LD_TH[1:0] - Controls the lid closure threshold for Capacitive Touch Sensor 12 (one
of the grouped sensors).
Bits 5-4 - CS11_LD_TH[1:0] - Controls the lid closure threshold for Capacitive Touch Sensor 11 (one
of the grouped sensors).
Bits 3-2 - CS10_LD_TH[1:0] - Controls the lid closure threshold for Capacitive Touch Sensor 10 (one
of the grouped sensors).
Revision 1.65 (08-11-09)
SMSC CAP1014
DATA5S8HEET
SMSC [ SMSC CORPORATION ]
