IQS620 Datasheet, PDF (9/63 Pages) List of Unclassifed Manufacturers – Unique combination of sensing:Capacitive sensing

IQ Switch^
ProxFusion^ Series
2.4 Software configuration
To be completed.
2.5 Sensor data output and flags
The following registers should be monitored by the master to detect capacitive sensor output and
SAR activations.
a) The Global events register (0x11) will show the IQS620’s main events. Bit0 is dedicated to
the ProxSense activations and two other bits (bit7 & bit1) is provided to show the state of the
SAR UI. SAR_ACTIVE (bit7) will be constantly active during SAR detection. SAR event (bit1)
will toggle upon each SAR qualified event or change of SAR status.
Bit
Number
Data
Access
Name
7
R
SAR
ACTIVE
6
R
PMU
EVENT
Global Events (0x11)
5
4
3
2
R
R
R
R
SYS TEMP METAL HALL
EVENT EVENT DETECT EVENT
1
R
SAR
EVENT
0
R
PROX
SENSE
EVENT
b) The ProxFusion UI flags (0x12) and SAR UI flags (0x13) provide more detail regarding the
outputs. A prox and touch output bit for each channel 0 to 3 is provided in the ProxFusion UI
flags register.
c) The SAR UI Flags (0x13) register will show detail regarding the state of the SAR output as
well as Quick release toggles, movement activations and the state of the filter (halted or not).
Bit
Number
7
Data
Access
-
Name
-
Bit
Number
7
Data
Access
-
Name
-
ProxFusion UI flags (0x12)
6
5
4
3
2
1
0
R
CH2_T
6
R
R
-
CH1_T CH0_T
-
SAR UI flags (0x13)
5
4
3
R
CH2_P
R
R
CH1_P CH0_P
2
1
0
-
-
R
-
R
R
R
-
-
SAR
ACTIVE
QUICK
RELEASE
MOVE-
MENT
FHALT
The SAR UI can also be used with the inductive sensing capabilities and is explained in section
4.Inductive sensing as well.
Copyright © Azoteq 2016
All Rights Reserved
IQS620 Preliminary pre-production datasheet revision 0.91
Information in this datasheet is based on products in the design, validation or qualification phase
of development. The performance and parameters shown in this document are preliminary
without any warranty and are subject to change without notice.
Page 9 of 63
November 2016