Datasheet
8 Channel Capacitive Touch Sensor with 8 LED Drivers
Datasheet
SMSC CAP1188 55 Revision 1.32 (01-05-12)
DATASHEET
‘0’ - The interrupt pin will not be asserted if a touch is detected on CS8 (associated with the CS8
status bit).
‘1’ (default) - The interrupt pin will be asserted if a touch is detected on CS8 (associated with the
CS8 status bit).
Bit 6 - CS7_INT_EN - Enables the interrupt pin to be asserted if a touch is detected on CS7
(associated with the CS7 status bit).
Bit 5 - CS6_INT_EN - Enables the interrupt pin to be asserted if a touch is detected on CS6
(associated with the CS6 status bit).
Bit 4 - CS5_INT_EN - Enables the interrupt pin to be asserted if a touch is detected on CS5
(associated with the CS5 status bit).
Bit 3 - CS4_INT_EN - Enables the interrupt pin to be asserted if a touch is detected on CS4
(associated with the CS4 status bit).
Bit 2 - CS3_INT_EN - Enables the interrupt pin to be asserted if a touch is detected on CS3
(associated with the CS3 status bit).
Bit 1 - CS2_INT_EN - Enables the interrupt pin to be asserted if a touch is detected on CS2
(associated with the CS2 status bit).
Bit 0 - CS1_INT_EN - Enables the interrupt pin to be asserted if a touch is detected on CS1
(associated with the CS1 status bit).
5.13 Repeat Rate Enable Register
The Repeat Rate Enable register enables the repeat rate of the sensor inputs as described in
Section 4.6.1.
Bit 7 - CS8_RPT_EN - Enables the repeat rate for capacitive touch sensor input 8.
‘0’ - The repeat rate for CS8 is disabled. It will only generate an interrupt when a touch is detected
and when a release is detected (if enabled) no matter how long the touch is held for.
‘1’ (default) - The repeat rate for CS8 is enabled. In the case of a “touch” event, it will generate an
interrupt when a touch is detected and a release is detected (as determined by the INT_REL_n bit
- see Section 5.6). In the case of a “press and hold” event, it will generate an interrupt when a
touch is detected and at the repeat rate so long as the touch is held.
Bit 6 - CS7_RPT_EN - Enables the repeat rate for capacitive touch sensor input 7.
Bit 5 - CS6_RPT_EN - Enables the repeat rate for capacitive touch sensor input 6.
Bit 4 - CS5_RPT_EN - Enables the repeat rate for capacitive touch sensor input 5.
Bit 3 - CS4_RPT_EN - Enables the repeat rate for capacitive touch sensor input 4.
Bit 2 - CS3_RPT_EN - Enables the repeat rate for capacitive touch sensor input 3.
Bit 1 - CS2_RPT_EN - Enables the repeat rate for capacitive touch sensor input 2.
Bit 0 - CS1_RPT_EN - Enables the repeat rate for capacitive touch sensor input 1.
Table 5.23 Repeat Rate Enable Register
ADDR R/W REGISTER B7 B6 B5 B4 B3 B2 B1 B0 DEFAULT
28h R/W
Repeat Rate
Enable
CS8_
RPT_EN
CS7_
RPT_EN
CS6_
RPT_EN
CS5_
RPT_EN
CS4_
RPT_EN
CS3_
RPT_EN
CS2_
RPT_EN
CS1_
RPT_EN
FFh