sx8643 Semtech Corporation, sx8643 Datasheet - Page 37

• Manufacturer Part Number: sx8643
• Description: Ultra Low Power, Capacitive Button Touch Controller 12 Sensors With Enhanced Led Drivers
• Manufacturer: Semtech Corporation

ADVANCED COMMUNICATIONS & SENSING
Address
Note
• ‘0xxx’:
Revision 7_5, February 10
0x00
0x01
0x02
0x03
0x04
0x05
0x06
0x07
0x08
0x09
0x0A
0x0B
0x0C
0x0D
0x0E
0x0F
0x10
0x11
0x12
0x13
0x14
0x15
0x16
0x17
0x18
0x19
0x1A
0x1B
0x1C
0x1D
0x1E
0x1F
Name
Reserved
Reserved
Reserved
Reserved
Reserved
I2CAddress
ActiveScanPeriod
DozeScanPeriod
PassiveTimer
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
CapThresh7
CapThresh8
CapThresh9
CapThresh10
CapThresh11
CapPerComp
write protected data
Table 12
default QSM
value
0x2B
0x02
0x0D
0x00
0x01
0x55
0x55
0x55
0x00
0x00
0x00
0x00
0x00
0x00
0xA0
0xA0
0xA0
0xA0
0xA0
0xA0
0xA0
0xA0
0xA0
0xA0
0xA0
0xA0
0x00
0xxx
0xxx
0x08
0xxx
0x00
© 2010 Semtech Corp.
SPM address map: 0x00…0x3F
Ultra Low Power, Capacitive Button Touch Controller
37
Address
0x20
0x21
0x22
0x23
0x24
0x25
0x26
0x27
0x28
0x29
0x2A
0x2B
0x2C
0x2D
0x2E
0x2F
0x30
0x31
0x32
0x33
0x34
0x35
0x36
0x37
0x38
0x39
0x3A
0x3B
0x3C
0x3D
0x3E
0x3F
(12 sensors) with Enhanced LED Drivers
Name
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
BtnCfg
BtnAvgThresh
BtnCompNegThresh
BtnCompNegCntMax
BtnHysteresis
BtnStuckAtTimeout
MapWakeupSize
MapWakeupValue0
MapWakeupValue1
MapWakeupValue2
MapAutoLight0
MapAutoLight1
MapAutoLight2
MapAutoLight3
MapAutoLightGrp0Msb
MapAutoLightGrp0Lsb
MapAutoLightGrp1Msb
MapAutoLightGrp1Lsb
DATASHEET
www.semtech.com
SX8643
default QSM
value
0x30
0x50
0x50
0x01
0x0A
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x76
0x54
0x32
0x10
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0xFF
0x00
0x00
0x00