SX8663 datasheet(50/64 Pages) SEMTECH

50 / 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

GPIO Parameters

Address

Name

Bits Description

1:0

Fading mode for GPIO[4]

7:6

Fading mode for GPIO[3]

5:4

Fading mode for GPIO[2]

3:2

Fading mode for GPIO[1]

0x6E

GpioFadingMode3_0

1:0

Fading mode for GPIO[0]

01: Continuous

10: Reserved

11: Reserved

The fading modes are expected to be

defined at power up by the QSM or NVM.

In case the fading modes need to be

changed after power up this can be done

when the GPOs are all OFF.

Table 15 resumes the applicable SPM and I2C parameters for each GPIO mode.

GPO

Autolight OFF

GPO

Autolight ON

SPO

(Buzzer – GPIO7 only)

GpioMode

GpioOutPwrUp

OFF

GpioAutolight

OFF

GpioPolarity

TSM->Normal

else X

Normal

GpioIntensityOn

GpioIntensityOff

TSM->0%

else X

GpioFunction

Linear

GpioIncFactor

GpioDecFactor

GpioIncTime

GpioDecTime

GpioOffDelay

SPM

GpioFadingMode

I2C

GpoCtrl

GpioOutPwrUp must be set to OFF in Continuous Fading Mode

Grey = not applicable, with or without required setting

Table 15

Applicable (X) SPM/I2C Parameters vs. GPIO Mode

SX8663 Datasheet(PDF) 50 Page - Semtech Corporation

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