CAP1114 datasheet(78/102 Pages) MICROCHIP

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Multiple Channel Capacitive Touch Sensor and LED Driver

Datasheet

Revision 1.1 (02-04-11)

SMSC CAP1114

DATASHEET

6.43

LED Output Control Registers

The LED Output Control Registers control the output state of the LED pins when they are configured

as outputs (see Section 6.40, "LED / GPIO Direction Register"). When these bits are set, the drive of

the pin is determined by the output type and the polarity controls (see Section 6.41, "LED / GPIO

Output Type Register" and Section 6.44, "LED Polarity Registers").

The LED Polarity Control register will determine the non actuated state of the LED pins. The actuated

LED behavior is determined by the LED behavior controls (see Section , "").

6.43.1

LED Output Control 1

Bit 7 - LED8_DR - Determines whether the LED8 output is driven high or low. This LED cannot be

linked to a Capacitive Touch Sensor.

‘0’ (default) - The LED8 output is driven at the minimum duty cycle or is not actuated.

‘1’ - The LED8 output is high-Z or driven at the maximum duty cycle or is actuated.

Bit 6 - LED7_DR - Determines whether LED7 output is driven high or low.

Bit 5 - LED6_DR - Determines whether LED6 output is driven high or low.

Bit 4 - LED5_DR - Determines whether LED5 output is driven high or low.

Bit 3 - LED4_DR - Determines whether LED4 output is driven high or low.

Bit 2 - LED3_DR - Determines whether LED3 output is driven high or low.

Bit 1 - LED2_DR - Determines whether LED2 output is driven high or low.

Bit 0 - LED1_DR - Determines whether LED1 output is driven high or low.

6.43.2

LED Output Control 2

Bit 2 - LED11_DR - Determines whether LED11 is driven high or low. This LED cannot be linked to a

Capacitive Touch Sensor.

‘0’ (default) - The LED11 output is driven at the minimum duty cycle or is not actuated

‘1’ - The LED11 output is high-Z or driven at the maximum duty cycle or is actuated.

Bit 1 - LED10_DR - Determines whether LED10 is driven high or low. If this LED is linked to the Group

of sensors, LED9 is automatically linked to the Group if sensors.

Bit 0 - LED9_DR - Determines whether LED9 is driven high or low.

Table 6.62 LED Output Control Registers

ADDR

R/W

DEFAULT

73h

R/W

LED Output

Control 1

LED8_

LED7_

LED6_

LED5_

LED4_

LED3_

LED2_

LED1_

00h

74h

R/W

LED Output

Control 2

LED11_

LED10_

LED9_

00h

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