sx8639 Semtech Corporation, sx8639 Datasheet - Page 70

• Manufacturer Part Number: sx8639
• Description: Low Power, Capacitive Button And Wheel Touch Controller 8 Sensors With Enhanced Led Drivers And Proximity Sensing
• Manufacturer: Semtech Corporation

ADVANCED COMMUNICATIONS & SENSING
Revision 7_8, September 10
Address
Address
Address
0x0B
0x0C
0xB1
Name
GppPinId
Name
GppIntensity
Name
SoftReset
Bits
7:3
2:0
Bits
7:0
Bits
7:0
(8 sensors) with Enhanced LED Drivers and Proximity Sensing
Table 32
Description
Reserved, write only ‘00000’
GPP Pin Identifier
Description
Defines the intensity index of the GPP pin selected in GppPinId
0x00: 0
0x01: 1
…
0xFF: 255
Reading returns the intensity index of the GPP pin selected in GppPinId.
Default value is IntensityOn or IntensityOff depending on GpioOutPwrUp.
Description
Writing 0xDE followed by 0x00 will reset the chip.
Table 33
© 2010 Semtech Corp.
Table 34 I2C
Low Power, Capacitive Button and Wheel Touch Controller
I2C GPP Pin Identifier
I2C GPP Intensity
70
Soft Reset
Defines the GPP pin to which the GppIntensity is
assigned for the following read/write operations
0x0 = GPP0 (default)
0x1 = GPP1
...
0x7 = GPP7
GPPx refers to pin GPIOx configured as GPP
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SX8639