CAP1088 Datasheet, PDF (42/72 Pages) SMSC Corporation – 8 Channel Capacitive Touch Sensor with 8 LED Drivers

8 Channel Capacitive Touch Sensor with 8 LED Drivers
Datasheet
Table 5.13 RPT_RATE Bit Decode
RPT_RATE[3:0] OR M_PRESS[3:0]
3
2
1
0
0
0
0
0
0
0
0
1
0
0
1
0
0
0
1
1
0
1
0
0
0
1
0
1
0
1
1
0
0
1
1
1
1
0
0
0
1
0
0
1
1
0
1
0
1
0
1
1
1
1
0
0
1
1
0
1
1
1
1
0
1
1
1
1
INTERRUPT REPEAT RATE
OR M_PRESS TIME
35ms
70ms
105ms
140ms
175ms
210ms
245ms
280ms
315ms
350ms
385ms
420ms
455ms
490ms
525ms
560ms
5.9 Sensor Configuration 2 Register
Table 5.14 Sensor Configuration 2 Register
ADDR R/W
REGISTER
B7
B6
B5
B4
B3
B2
B1
B0 DEFAULT
23h
R/W
Sensor
Configuration 2
-
-
-
-
M_PRESS[3:0]
07h
Bits 3- 0 - M_PRESS[3:0] - (default 0111b) - Determines the minimum amount of time that sensors
configured to use auto repeat must detect a sensor touch to detect a “press and hold” event. If the
sensor detects a touch for longer than the M_PRESS[3:0] settings, then a “press and hold” event is
detected.
This is the maximum amount of time that sensors can detect a sensor touch to differentiate between
a “touch” and a “press and hold”. If a sensor detects a touch for less than or equal to the
M_PRESS[3:0] settings, then a touch event is detected.
The resolution is 35ms the range is from 35ms to 560ms as shown in Table 5.13.
Revision 1.1 (08-05-09)
42
DATASHEET
SMSC CAP1088