sx8643 Semtech Corporation, sx8643 Datasheet - Page 59

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

ADVANCED COMMUNICATIONS & SENSING
Revision 7_5, February 10
Address
Address
Address
0x08
0x07
0x01
0x02
Name
SpmStat
Name
CapStatMsb
CapStatLsb
Name
GpiStat
Bits
7:4
3
2:0
Bits
7:0
Bits
7:4
3
2
1
0
7
6
5
4
3
2
1
0
Description
reserved
NvmValid
NvmCount
Description
GPI[7:0]
Status
Table 25,
Description
Reserved
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
© 2010 Semtech Corp.
Table 27
Table 26
Indicates if the current NVM is valid.
0: No – QSM is used
1: Yes – NVM is used
Indicates the number of times NVM has been burned:
0: None – QSM is used (default)
1: Once – NVM is used if NvmValid = 1, else QSM.
2: Twice – NVM is used if NvmValid = 1, else QSM.
3: Three times – NVM is used if NvmValid = 1, else QSM.
4: More than three times – QSM is used
Status of each individual GPI pin
0: Low
1: High
Bits of non-GPI pins are set to 0.
Ultra Low Power, Capacitive Button Touch Controller
Button status MSB/LSB
I2C SPM status
I2C GPI status
59
Button Touch status
0: Released (default)
1: Touched
(12 sensors) with Enhanced LED Drivers
DATASHEET
www.semtech.com
SX8643