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QST108AM1 Datasheet(PDF) 26 Page - STMicroelectronics

No. de pieza QST108AM1
Descripción Electrónicos  Capacitive touch sensor device 8 keys with individual key state outputs or I2C interface
PDF  51 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

QST108AM1 Datasheet(HTML) 26 Page - STMicroelectronics

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Device operating modes
QST108
26/51
GPO state description
GPOState
Defines the state of the selected general-purpose output pin. For more information, see
Section 4.6.2: General-purpose outputs on page 20.
0: GPO state is ‘0’
1: GPO state is ‘1’
AKS group mode description
AKSGrpnMode
Defines the type of AKS for the Group n:
0: Locking AKS: First key pressed within the group locks out all other keys.
1: Unlocking AKS: Most heavily pressed key (highest signal level) is selected over
all other keys in the group.
AKS group selection description
Grpx
The selected key is a member of AKS Group x.
Key debug state description
Table 16.
GPOState
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
00
0
GPO 5
state
GPO 4
state
GPO 3
state
GPO 2
state
GPO 1
state
Table 17.
AKSGrpnMode
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
AKSGrp8
Mode
AKSGrp7
Mode
AKSGrp6
Mode
AKSGrp5
Mode
AKSGrp4
Mode
AKSGrp3
Mode
AKSGrp2
Mode
AKSGrp1
Mode
Table 18.
KeynGrp
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Grp8
Grp7
Grp6
Grp5
Grp4
Grp3
Grp2
Grp1
Table 19.
KeyDbgState
Value
Description
0x01
On-going calibration
0x02
Key released
0x04
Key touched
0x08
Key in error
0x11
Key calibration filter triggered (PosRecalI)
0x14
Key detection filter triggered (DI)
0x24
Key end of detection filter triggered (EDI)



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