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CHAPTER 2
Integrating 3M™ MicroTouch™ EX Dual Mode
Controllers
The 3M™ MicroTouch™ EX dual mode controller features wide dynamic range,
increased noise immunity, wide operating temperature stability, reprogrammability using
software utilities and improved capability in ungrounded environments.
The EX113 capacitive controller firmware is optimized for surface capacitive sensors
integrated in the latest flat panel displays.
This chapter covers the following EX dual mode controller specifications:
•
Cable connections
•
Mounting requirements
•
Power requirements and options
•
Status LED codes
Overview of the EX113 Dual Mode Controller
Note: For complete specifications for this EX dual mode controller, refer to the appendix
at the end of this manual.
The EX dual mode controller and sensors are supplied separately or as a mated pair. A
25-point linearization procedure has been performed to determine the physical properties
of the sensor, and the data is stored in a 2D bar code label attached to the flex tail. The
linearization data must be loaded in both serial and USB modes.
The EX113 can operate in either USB or serial mode and is available in N81 Format
Tablet without cable for mounting within a custom chassis.
Note: Power must always be supplied to JP3. If a USB cable is connected, the controller
is in USB mode – otherwise it defaults to serial mode. Power for the controller is not
derived from Vbus.
The EX ASIC has a built-in Universal Serial Bus (USB) full speed interface. A full speed
USB interface has a data rate of 12 Mb/s. The USB core in the ASIC was designed to
USB specification revision 1.1 but is forward compatible with revision 2.0.
3M Touch Systems, Inc. Proprietary Information – TSD-40848A
3M™ MicroTouch™ Controller EX Dual Mode Reference Guide
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