Multiple Channel Capacitive Touch Sensor and LED Driver
Datasheet
‘0’ - The multiple touch circuitry is disabled. The device will not block multiple touches.
‘1’ (default)- The multiple touch circuitry is enabled. The device will accept the number of touches
equal to programmed multiple touch threshold and block all others. It will remember which sensor
is valid and block all others until that sensor has been released.
Bits 3 - 2 - B_MULT_T[1:0] - Determines the number of simultaneous touches on all buttons (excluding
the Grouped buttons) before a Multiple Touch Event is flagged. If the number of multiple buttons
touches is greater than the threshold value then a Multiple Touch Event is flagged. The bit decode is
given by Table 5.32.
Table 5.32 B_MULT_T Bit Decode
B_MULT_T[1:0]
NUMBER OF SIMULTANEOUS
1
0
TOUCHES
0
0
1
1
0
1
0
1
1 (default)
2
3
4
Bits 1 - 0 - G_MULT_T[1:0] - Determines the number of simultaneous touches on all Grouped buttons
before a Multiple Touch Event is flagged. If the number of multiple buttons touches is greater than the
threshold value then a Multiple Touch Event is flagged. The bit decode is given by Table 5.33.
Table 5.33 G_MULT_T Bit Decode
G_MULT_T[1:0]
NUMBER OF SIMULTANEOUS
1
0
TOUCHES
0
0
1
1
0
1
0
1
2
3
4 (default)
5
5.24 Lid Closure Configuration Register
Table 5.34 Lid Closure Configuration
ADDR
R/W
REGISTER
B7
B6
B5
B4
B3
B2
B1
B0
DEFAULT
Lid Closure
Config
LID_
CLOSE
COMP_
PTRN
LID_
ALRT
2Bh
R/W
-
-
-
-
-
00h
The Lid Closure Configuration register controls the settings for the lid closure detection circuitry.
Bit 7 - LID_CLOSE - Enables the lid closure circuitry.
‘0’ (default) - The lid closure circuitry is disabled.
Revision 1.65 (08-11-09)
SMSC CAP1014
DATA5S2HEET
SMSC [ SMSC CORPORATION ]
