Datasheet

8 Channel Capacitive Touch Sensor with 8 LED Drivers
Datasheet
SMSC CAP1188 51 Revision 1.32 (01-05-12)
DATASHEET
5.9 Sensor Input Configuration 2 Register
Bits 3 - 0 - M_PRESS[3:0] - (default 0111b) - Determines the minimum amount of time that sensor
inputs configured to use auto repeat must detect a sensor pad touch to detect a “press and hold” event.
If the sensor input detects a touch for longer than the M_PRESS[3:0] settings, a “press and hold” event
is detected. If a sensor input detects a touch for less than or equal to the M_PRESS[3:0] settings, a
touch event is detected.
The resolution is 35ms the range is from 35ms to 560ms as shown in Table 5.16.
1 0 1 0 385ms
1 0 1 1 420ms
1 1 0 0 455ms
1 1 0 1 490ms
1 1 1 0 525ms
1 1 1 1 560ms
Table 5.15 Sensor Input Configuration 2 Register
ADDR R/W REGISTER B7 B6 B5 B4 B3 B2 B1 B0 DEFAULT
23h R/W
Sensor Input
Configuration 2
- - - - M_PRESS[3:0] 07h
Table 5.16 M_PRESS Bit Decode
M_PRESS[3:0]
M_PRESS SETTINGS3 2 1 0
0 0 0 0 35ms
0 0 0 1 70ms
0 0 1 0 105ms
0 0 1 1 140ms
0 1 0 0 175ms
0 1 0 1 210ms
0 1 1 0 245ms
0 1 1 1 280ms (default)
1 0 0 0 315ms
Table 5.14 RPT_RATE Bit Decode (continued)
RPT_RATE[3:0]
INTERRUPT REPEAT RATE3 2 1 0