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SX8661 Datasheet(PDF) 64 Page - Semtech Corporation

Part # SX8661
Description  Low Power, Capacitive Button Touch and Proximity Controller
PDF  88 Pages
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SX8661 Datasheet(HTML) 64 Page - Semtech Corporation

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ADVANCED COMMUNICATIONS & SENSING
DATASHEET
Revision v3.2, January 2011
© 2011 Semtech Corp.
www.semtech.com
64
SX8661
Low Power, Capacitive Button Touch and Proximity Controller
(8 sensors) with LED Drivers and Analog Output
5.9
GPIO Parameters
GPIO Parameters
Address
Name
Bits Description
7:6 GPIO[7] Mode
Default AOI-A
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: GPP
10: Reserved
11: SPO: AOI-A for GPIO[7],
AOI-B for GPIO[6],
Buzzer for GPIO[5]),
Reserved for GPIO[4..0]
Default: 0xC000
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
0x01: 1
…
0xFF: 255 (default)
0x56
GpioOutPwrUp
7:0 Defines the values of GPO and GPP pins after power up i.e. default values of
I2C parameters GpoCtrl and GppIntensity respectively.
Bits corresponding to GPO pins with Autolight ON should be left to 0.
Before being actually initialized GPIOs are set as inputs with pull up.
0: OFF(GPO) / IntensityOff (GPP)
1: ON (GPO) / IntensityOn (GPP)
Default: 0x00
0x57
GpioAutoLight
7:0 Enables Autolight in GPO mode.
0 : OFF
1 : ON
Default: 0xFF
0x58
GpioPolarity
7:0 Defines the polarity of the GPO and GPP pins.
SPO pins require Normal Polarity.
0: Inverted



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