MTCH6301T-ISLASHML datasheet(3/40 Pages) MICROCHIP

3 / 40 page

 2012-2014 Microchip Technology Inc.

DS40001663B-page 3

MTCH6301

1.0

SYSTEM BLOCK DIAGRAM

FIGURE 1-1:

SYSTEM BLOCK DIAGRAM

2.0

CONFIGURATION AND SETUP

The

MTCH6301

preconfigured

for

12 Receiver (RX)/9 Transmitter (TX) touch sensor,

mapped

shown

Section 5.1

“Typical

Application Circuit”. While the device will work

out-of-the-box using this specific sensor configuration,

most applications will require additional configuration

and sensor tuning to determine the correct set of

parameters to be used in the final application.

Microchip provides a PC-based configuration tool for

this purpose, available in the mTouch™ Sensing

Solution Design Center (www.microchip.com/mtouch).

Use of this tool requires a PICkit™ Serial Analyzer

(updated with MTCH6301 support), as well as access

to the I2C communications bus of the MTCH6301

device.

Once the development process is complete, this

modified parameter set must either be written

permanently to the controller via NVRAM (see

Section 8.3 “Nonvolatile RAM (NVRAM)”), or

alternatively, it can be sent every time the system is

powered on. Both the PICkit Serial Analyzer and the

master I2C controller can be used for this purpose.

Touch Sensor

TX0..17

RX0..12

User Configuration Data

Gesture Engine

MultiTouch

Decode

2CTM

Module

TX Drive

Sense

ADC

MTCH6301

[Master Controller]

Touch Data

MICROCHIP

PICkit

TM Serial

Analyzer

USB

Connection only for initial tuning or configuration

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