SX8663 datasheet(56/64 Pages) SEMTECH

56 / 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

Address

Name

Bits

Description

2:0

NvmCount

Indicates the number of times NVM has been burned:

0: None – QSM is used (default)

1: Once – NVM is used if NvmValid = 1, else QSM.

2: Twice – NVM is used if NvmValid = 1, else QSM.

3: Three times – NVM is used if NvmValid = 1, else QSM.

4: More than three times – QSM is used

Table 19

I2C SPM status

6.5

Control Registers

Address

Name

Bits

Description

7:3

Reserved*, write only ‘00000’

Compensation

Indicates/triggers compensation procedure

0: Compensation completed (default)

1: read -> compensation running ; write -> trigger

compensation

0x09

CompOpMode

1:0

Operating Mode

Indicates/programs** operating mode

00: Active mode (default)

01: Doze mode

10: Sleep mode

11: Reserved

* The reading of these reserved bits will return varying values.

** After the operating mode change (Active/Doze) the host should wait for INTB or 300ms before

performing any I2C read access.

Table 20

I2C compensation, operation modes

Address

Name

Bits

Description

0x0A

GpoCtrl

7:0

GpoCtrl[7:0]

Triggers ON/OFF state of GPOs when Autolight is OFF

0: OFF (i.e. go to IntensityOff)

1: ON (i.e. go to IntensityOn)

Default is set by SPM parameter GpioOutPwrUp

Bits of non-GPO pins are ignored.

Table 21

I2C GPO Control

Address

Name

Bits

Description

0xB1

SoftReset

7:0

Writing 0xDE followed by 0x00 will reset the chip.

Table 22

I2C Soft Reset

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