SX8663 datasheet(48/64 Pages) SEMTECH

48 / 64 page

ADVANCED COMMUNICATIONS & SENSING

Rev5 4

th August 2011

www.semtech.com

SX8663

Capacitive Button Matrix (up to 36) and Proximity Controller

with Individual LED Drivers and Buzzer Output

5.7

GPIO Parameters

Address

Name

Bits Description

7:6

GPIO[7] Mode

Default GPO

5:4

GPIO[6] Mode

Default GPO

3:2

GPIO[5] Mode

Default GPO

0x43

GpioMode7_4

1:0

GPIO[4] Mode

Default GPO

7:6

GPIO[3] Mode

Default GPO

5:4

GPIO[2] Mode

Default GPO

3:2

GPIO[1] Mode

Default GPO

0x44

GpioMode3_0

1:0

GPIO[0] Mode

Defines the GPIO mode.

00: GPO

01: Reserved

10: Reserved

11: SPO: Buzzer for GPIO[7],

Reserved for GPIO[6..0]

Default GPO

0x45

GpioIntensityOn0

7:0

0x46

GpioIntensityOn1

7:0

0x47

GpioIntensityOn2

7:0

0x48

GpioIntensityOn3

7:0

0x49

GpioIntensityOn4

7:0

0x4A

GpioIntensityOn5

7:0

0x4B

GpioIntensityOn6

7:0

0x4C

GpioIntensityOn7

7:0

Defines the ON intensity index.

0x00: 0

0x01: 1

…

0xFF: 255 (default)

0x4D

GpioIntensityOff0

7:0

0x4E

GpioIntensityOff1

7:0

0x4F

GpioIntensityOff2

7:0

0x50

GpioIntensityOff3

7:0

0x51

GpioIntensityOff4

7:0

0x52

GpioIntensityOff5

7:0

0x53

GpioIntensityOff6

7:0

0x54

GpioIntensityOff7

7:0

Defines the OFF intensity index.

0x00: 0 (default)

0x01: 1

…

0xFF: 255

0x56

GpioOutPwrUp

7:0

Defines the values of GPO pins after power up i.e. default values of I2C

parameters GpoCtrl.

Bits corresponding to GPO pins with Autolight ON should be left to 0.

Before being actually initialized GPIOs are shortly set as inputs with pull up.

0: OFF(default)

1: ON

0x57

GpioAutoLight

7:0

Enables Autolight in GPO mode.

0: OFF

1: ON (default). GPIO0-5 = MK(TSM); GPIO6 = MK(TSM) or PK if enabled;

GPIO7 = PS if enabled and ProxCfg[4:2]=000

0x58

GpioPolarity

7:0

Defines the polarity of the GPO pins.

SPO pins require Normal Polarity.

0: Inverted

1: Normal

Default : 0x7F

0x59

GpioFunction

7:0

Defines the intensity index vs PWM pulse width function.

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