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MXT641T Datasheet(PDF) 49 Page - ATMEL Corporation

Part # MXT641T
Description  maXTouch 640-node Touchscreen Controller
PDF  74 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

MXT641T Datasheet(HTML) 49 Page - ATMEL Corporation

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49
mXT641T 1.0 [Datasheet]
9917JX–AT42–02/15
Getting Started with mXT641T
13.5
Configuring the Device
The objects are designed such that a default value of zero in their fields is a “safe” value that typically disables
functionality. The objects must be configured before use and the settings written to the nonvolatile memory using the
Command Processor T6 object.
Perform the following actions for each object:
1.
Enable the object, if the object requires it.
2.
Configure the fields in the object, as required.
3.
Enable reporting, if the object supports messages, to receive messages from the object.
Refer to the mXT641T 1.0 Protocol Guide for more information on configuring the objects.
The following objects require no configuration:
Debug Objects
Diagnostic Debug T37
General objects:
Message Processor T5
Command Processor T6
Support objects:
Message Count T44
The following objects must be configured before use:
General objects
Power Configuration T7
Acquisition Configuration T8
The following objects should be checked and configured as necessary:
Touch objects:
Key Array T15
Multiple Touch Touchscreen T100
Signal processing objects:
Stylus T47
Support objects:
Communications Configuration T18
GPIO/PWM Configuration T19
User Data T38
Digitizer HID Configuration T43
CTE Configuration T46
Touchscreen Hover Configuration T101
Self Capacitance Global Configuration T109
Self Capacitance Tuning Parameters T110
Self Capacitance Configuration T111
Self Capacitance Measurement Configuration T113
The following objects are optional and can be configured, as required:
Signal processing objects:
Grip Suppression T40
Touch Suppression T42
Shieldless T56
Lens Bending T65
maXCharger T72
Glove Detection T78



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