SX8645I05AWLTRT Semtech, SX8645I05AWLTRT Datasheet - Page 42

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

ADVANCED COMMUNICATIONS & SENSING
5.3 Capacitive Sensors Parameters
Revision 7_5, February 10
Capacitive Sensors Parameters
Address
0x09
0x0A
0x0B
0x0C
0x0D
0x0E
0x0F
0x10
0x11
0x12
0x13
0x14
0x15
0x16
0x17
0x18
0x19
Name
CapModeMisc
CapMode11_8
CapMode7_4
CapMode3_0
CapSensitivity0_1
CapSensitivity2_3
CapSensitivity4_5
CapSensitivity6_7
CapSensitivity8_9
CapSensitivity10_11
CapThresh0
CapThresh1
CapThresh2
CapThresh3
CapThresh4
CapThresh5
CapThresh6
Bits
7:3
2
1:0
7:6
5:4
3:2
1:0
7:6
5:4
3:2
1:0
7:6
5:4
3:2
1:0
7:4
3:0
7:4
3:0
7:4
3:0
7:4
3:0
7:4
3:0
7:4
3:0
7:0
7:0
7:0
7:0
7:0
7:0
7:0
Description
Reserved
IndividualSensitivity
Reserved
CAP11 Mode
CAP10 Mode
CAP9 Mode
CAP8 Mode
CAP7 Mode
CAP6 Mode
CAP5 Mode
CAP4 Mode
CAP3 Mode
CAP2 Mode
CAP1 Mode
CAP0 Mode
CAP0 Sensitivity - Common Sensitivity
CAP1 Sensitivity
CAP2 Sensitivity
CAP3 Sensitivity
CAP4 Sensitivity
CAP5 Sensitivity
CAP6 Sensitivity
CAP7 Sensitivity
CAP8 Sensitivity
CAP9 Sensitivity
CAP10 Sensitivity
CAP11 Sensitivity
CAP0 Touch Threshold
CAP1 Touch Threshold
CAP2 Touch Threshold
CAP3 Touch Threshold
CAP4 Touch Threshold
CAP5 Touch Threshold
CAP6 Touch Threshold
Touch Controller (12 sensors) with Enhanced LED Drivers
© 2010 Semtech Corp.
42
Ultra Low Power, Capacitive Button and Wheel
Defines common sensitivity for all sensors or individual
sensor sensitivity.
0: Common settings (CapSensitivity0_1[7:4])
1: Individual CAP sensitivity settings (CapSensitivityx_x)
Defines the mode of
the CAP pin.
00: Disabled
01: Button
10: Reserved
11: Wheel
Defines the sensitivity.
0x0: Minimum (default)
0x7: Maximum
0x8…0xF: Reserved
Defines the Touch Threshold ticks.
0x00: 0,
0x01: 4,
…
0xA0: 640 (default),
…
0xFF: 1020
Reserved: ‘01’
DATASHEET
www.semtech.com
Default
SX8645
Wheel
Wheel
Wheel
Wheel
Wheel
Wheel
Button
Button
Button
Button
Button
Button