sx8661 Semtech Corporation, sx8661 Datasheet - Page 65

• Manufacturer Part Number: sx8661
• Description: Low Power, Capacitive Button Touch And Proximity Controller 8 Sensors With Led Drivers And Analog Output
• Manufacturer: Semtech Corporation

ADVANCED COMMUNICATIONS & SENSING
Revision v3.2, January 2011
GPIO Parameters
Address
0x59
0x5A
0x5B
0x5C
0x5D
0x5E
0x5F
0x60
0x61
0x62
0x63
0x64
0x65
0x66
0x67
Name
GpioFunction
GpioIncFactor
GpioDecFactor
GpioIncTime7_6
GpioIncTime5_4
GpioIncTime3_2
GpioIncTime1_0
GpioDecTime7_6
GpioDecTime5_4
GpioDecTime3_2
GpioDecTime1_0
GpioOffDelay7_6
GpioOffDelay5_4
GpioOffDelay3_2
GpioOffDelay1_0
Bits Description
7:0 Defines the intensity index vs PWM pulse width function.
7:0 Defines the fading increment factor.
7:0 Defines the fading decrement factor.
7:4 GPIO[7] Fading Increment Time
3:0 GPIO[6] Fading Increment Time
7:4 GPIO[5] Fading Increment Time
3:0 GPIO[4] Fading Increment Time
7:4 GPIO[3] Fading Increment Time
3:0 GPIO[2] Fading Increment Time
7:4 GPIO[1] Fading Increment Time
3:0 GPIO[0] Fading Increment Time
7:4 GPIO[7] Fading Decrement Time
3:0 GPIO[6] Fading Decrement Time
7:4 GPIO[5] Fading Decrement Time
3:0 GPIO[4] Fading Decrement Time
7:4 GPIO[3] Fading Decrement Time
3:0 GPIO[2] Fading Decrement Time
7:4 GPIO[1] Fading Decrement Time
3:0 GPIO[0] Fading Decrement Time
7:4 GPIO[7] OFF Delay
3:0 GPIO[6] OFF Delay
7:4 GPIO[5] OFF Delay
3:0 GPIO[4] OFF Delay
7:4 GPIO[3] OFF Delay
3:0 GPIO[2] OFF Delay
7:4 GPIO[1] OFF Delay
3:0 GPIO[0] OFF Delay
Low Power, Capacitive Button Touch and Proximity Controller
1: Normal
Default: 0x80
0: Logarithmic
1: Linear
Default: 0x80
0: intensity index incremented every increment time
1: intensity index incremented every 16 increment times
Default: 0x00
0: intensity index decremented every decrement time
1: intensity index decremented every 16 decrement times
Default: 0x00
© 2011 Semtech Corp.
65
(8 sensors) with LED Drivers and Analog Output
Defines the fading increment time.
0x0: OFF
0x1: 0.5ms
0x2: 1ms
…
0xF: 7.5ms
The total fading in time will be:
GpioIncTime*GpioIncFactor*
(GpioIntensityOn – GpioIntensityOff)
Default: 0x11111111
Defines the fading decrement time.
0x0: OFF
0x1: 0.5ms
0x2: 1ms
…
0x4: 2.0ms
…
0xF: 7.5ms
The total fading out time will be:
GpioDecTime*GpioDecFactor*
(GpioIntensityOn – GpioIntensityOff)
Default: 0x44444444
Single Fading Mode
Defines the delay between release and start
of fading out.
0x0: instantaneous
0x1: 200 ms
0x2: 400 ms
0x3: 600ms
…
0xA: 2s
0xB: 4s
…
0xF: 12s
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DATASHEET
SX8661