sx8662 Semtech Corporation, sx8662 Datasheet - Page 44

• Manufacturer Part Number: sx8662
• Description: Capacitive Button Matrix Up To 36 Controller With Individual Led Drivers And Buzzer Output
• Manufacturer: Semtech Corporation

ADVANCED COMMUNICATIONS & SENSING
5.6 GPIO Parameters
Rev5 4
GPIO Parameters
Address
0x43
0x44
0x45
0x46
0x47
0x48
0x49
0x4A
0x4B
0x4C
0x4D
0x4E
0x4F
0x50
0x51
0x52
0x53
0x54
0x56
0x57
0x58
0x59
th
August 2011
Name
GpioMode7_4
GpioMode3_0
GpioIntensityOn0
GpioIntensityOn1
GpioIntensityOn2
GpioIntensityOn3
GpioIntensityOn4
GpioIntensityOn5
GpioIntensityOn6
GpioIntensityOn7
GpioIntensityOff0
GpioIntensityOff1
GpioIntensityOff2
GpioIntensityOff3
GpioIntensityOff4
GpioIntensityOff5
GpioIntensityOff6
GpioIntensityOff7
GpioOutPwrUp
GpioAutoLight
GpioPolarity
GpioFunction
Bits Description
7:6 GPIO[7] Mode
5:4 GPIO[6] Mode
3:2 GPIO[5] Mode
1:0 GPIO[4] Mode
7:6 GPIO[3] Mode
5:4 GPIO[2] Mode
3:2 GPIO[1] Mode
1:0 GPIO[0] Mode
7:0
7:0
7:0
7:0
7:0
7:0
7:0
7:0
7:0
7:0
7:0
7:0
7:0
7:0
7:0
7:0
7:0 Defines the values of GPO pins after power up i.e. default values of I2C
7:0 Enables Autolight in GPO mode.
7:0 Defines the polarity of the GPO pins.
7:0 Defines the intensity index vs PWM pulse width function.
Defines the ON intensity index.
0x00: 0
0x01: 1
…
0xFF: 255 (default)
Defines the OFF intensity index.
0x00: 0 (default)
0x01: 1
…
0xFF: 255
parameters GpoCtrl.
Bits corresponding to GPO pins with Autolight ON should be left to 0.
Before being actually initialized GPIOs are shortly set as inputs with pull up.
0: OFF(default)
1: ON
0: OFF
1: ON (default). GPIO0-5 = MK(TSM); GPIO6 = MK(TSM) or PK if enabled
SPO pins require Normal Polarity.
0: Inverted
1: Normal
Default : 0x7F
0: Logarithmic (default)
1: Linear
© 2011 Semtech Corp.
44
Defines the GPIO mode.
00: GPO
01: Reserved
10: Reserved
11: SPO: Buzzer for GPIO[7],
with Individual LED Drivers and Buzzer Output
Capacitive Button Matrix (up to 36) Controller
Reserved for GPIO[6..0]
www.semtech.com
Default GPO
Default GPO
Default GPO
Default GPO
Default GPO
Default GPO
Default GPO
Default GPO
SX8662