QT60240-ATG Datasheet, PDF (14/26 Pages) List of Unclassifed Manufacturers – 16 AND 24 KEY QMATRIX TOUCH SENSOR ICs

Figure 4.1 Power-on or Hardware Reset Flow Chart
Power-on or
Hardware Reset
Verify Setup
Block
Incorrect
Setup Data
Send Correct
Setup Block
Correct Setup
Block
Read key
status registers
Addr: 1, 2
and 3
'CHANGE'
output set
Host main
Process
Recalibrate All
Send 0x55 to
Addr 125
Keys OK
Key Detection(s) / End of
Detection Processing
Stuck Key
Detected
Recalibrate All
Send 0x55 to
Addr 125
Legend
Internal Host
Processes
Comms
with QT
lQ
14
QT60240-ISG R8.06/0906