Multiple Channel Capacitive Touch Sensor and LED Driver
Datasheet
This is the maximum amount of time that a sensor in the Group can detect a button press to
differentiate between a tap 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 Tap event is detected.
The resolution is 35ms the range is from 35ms to 560ms as shown in Table 5.24.
5.18 Group Configuration Register 2
Table 5.26 Group Configuration Register 2
ADDR
R/W
REGISTER
B7
B6
B5
B4
B3
B2
B1
B0
DEFAULT
Group
Configuration 2
24h
R/W
MAX_DUR_G[3:0]
RPT_RATE_SL[3:0]
D4h
The Group Configuration 2 register controls timings associated with the Capacitive Sensor channels 8
- 14 that are included in the group.
Bits 7 - 4 - MAX_DUR_G [3:0] - (default 1101b) - Determines the maximum time that a button is
allowed to be pressed until the Capacitive Touch sensor is recalibrated as shown in Table 5.23.
Bits 3 - 0 - RPT_RATE_SL[3:0] - (default 0100b) Determines the time duration between interrupt
assertions when auto repeat is enabled. This setting applies when a slide is detected on the Grouped
Sensors and acts as the base repeat rate that is adjusted based on the slide speed (see Section 4.5.3).
The resolution is 35ms the range is from 35ms to 560ms as shown in Table 5.24.
5.19 Calibration Enable Registers
Table 5.27 Calibration Enable Registers
ADDR
R/W
REGISTER
B7
B6
B5
B4
B3
B2
B1
B0
DEFAULT
Calibration
Enable
G_
CEN
S7_
CEN
S6_
CEN
S5_
CEN
S4_
CEn
S3_
CEN
S2_
CEN
S1_
CEN
25h
R/W
FFh
The Calibration Enable registers control whether the indicated Capacitive Touch Sensor input is
automatically re-calibrated. If a sensor is not enabled then the corresponding calibration enable bit is
ignored.
Bit 7- G_CEN - Enables all sensors in the group to be re-calibrated simultaneously.
‘0’ - None of the grouped channels are automatically re-calibrated. They can be re-calibrated
manually by setting the G_CAL bit.
‘1’ (default) - All of the grouped channels are automatically re-calibrated as the CAP1014 samples.
Bit 6 - S7_CEN - Enables the CS7 input to be re-calibrated automatically.
‘0’ - The CS7 input is not automatically re-calibrated.
‘1’ (default) - The CS7 input is automatically re-calibrated as the CAP1014 samples.
Bit 5 - S6_CEN - Enables the CS6 input to be re-calibrated automatically.
Bit 4 - S5_CEN - Enables the CS5 input to be re-calibrated automatically.
Bit 3 - S4_CEN - Enables the CS4 input to be re-calibrated automatically.
Bit 2 - S3_CEN - Enables the CS3 input to be re-calibrated automatically.
Revision 1.65 (08-11-09)
SMSC CAP1014
DATA4S8HEET
SMSC [ SMSC CORPORATION ]
