SX8645I05AWLTRT Semtech, SX8645I05AWLTRT Datasheet - Page 66

• Manufacturer Part Number: SX8645I05AWLTRT
• Description: 12-ch Capacitive Touch Solution (Button & Wheel)
• Manufacturer: Semtech

ADVANCED COMMUNICATIONS & SENSING
Revision 7_5, February 10
Address
Address
Address
0x03
0x04
0x07
0x01
0x02
Name
WhlPosMsb 7:0
WhlPosLsb
Name
CapStatMsb
CapStatLsb
Name
GpiStat
Bits
7:0
Bits
7:0
Bits
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
Table 26 Wheel,
Description
GPI[7:0]
Status
Description
Wheel Position[15:8]
Wheel Position[7:0]
Table 27
Description
Reserved
Wheel Rotation
Clockwise
Wheel Rotation
Counter Clockwise
Wheel Touched
Button 11 Touched
Button 10 Touched
Button 9 Touched
Button 8 Touched
Button 7 Touched
Button 6 Touched
Button 5 Touched
Button 4 Touched
Button 3 Touched
Button 2 Touched
Button 1 Touched
Button 0 Touched
Touch Controller (12 sensors) with Enhanced LED Drivers
© 2010 Semtech Corp.
Table 28
Status of each individual GPI pin
0: Low
1: High
Bits of non-GPI pins are set to 0.
Wheel position MSB/LSB
Button status MSB/LSB
I2C GPI status
66
Ultra Low Power, Capacitive Button and Wheel
Wheel Rotation status
0: No rotation (default)
1: Rotation
The status remains high as long as the wheel is
touched and no opposite rotation has occurred.
Wheel Touch status
0: Released (default)
1: Touched
Button Touch status
0: Released (default)
1: Touched
Shows the current (touched) or last (released)
wheel position[15:0] unsigned (default 0x00)
DATASHEET
www.semtech.com
SX8645