ATAVRTS2080B Atmel, ATAVRTS2080B Datasheet - Page 114
ATAVRTS2080B
Manufacturer Part Number
ATAVRTS2080B
Description
BOARD EVAL FOR ATTINY88 LIBRARY
Manufacturer
Atmel
Series
QTouch™r
Specifications of ATAVRTS2080B
Sensor Type
Touch, Capacitive
Sensing Range
1 Rotor, 1 Slider, and 2 Buttons/Keys
Interface
Application Programming Interface (API)
Voltage - Supply
1.8 V ~ 5.5 V
Embedded
Yes, MCU, 8-Bit
Utilized Ic / Part
ATtiny88
Tool Type
Development Kit
Cpu Core
AVR 8 / 32
Data Bus Width
8 bit
Core Architecture
AVR
Silicon Manufacturer
Atmel
Silicon Core Number
ATtiny88
Silicon Family Name
AVR
Kit Contents
Board CD Docs
Development Tool Type
Hardware / Software - Eval/Demo Board
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Sensitivity
-
Lead Free Status / Rohs Status
Details
Other names
Q4359953
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6.3.7.3
The clock for the CAT module, CLK_CAT, is generated by the Power Manager (PM). This clock is
turned on by default, and can be enabled and disabled in the PM. The user must ensure that
CLK_CAT is enabled before initializing the QTouch Library.
QMatrix operations also require the CAT generic clock, GCLK_CAT. This generic clock is
generated by the System Control Interface (SCIF), and is shared between the CAT and the
Analog Comparator Interface. The user must ensure that the GCLK_CAT is enabled in the SCIF
before using QMatrix functionality. For proper QMatrix operation, the frequency of GCLK_CAT
must be less than one fourth the frequency of CLK_CAT.
For QMatrix operation, the Analog comparators channels are used (using the ACIFB interface)
depending on the Y Lines enabled. See Note 4 in Section 6.3.7.4.
The QMatrix method acquisition using the CAT module requires two Peripheral DMA channels
that must be provided by the application.
6.3.7.4
The above figure represents a typical 4 X 4 matrix of QMatrix sensor arrangement along with the
channel numbers. The Channel numbering starts with Channel 0 (Ch0) and increase sequentially
from Ch0 to Ch15. Similarly the Sensor numbering starts with Sensor 0. The Channel number
signifies the order in which the QTouch Library stores the acquisition data in the memory.
Note: The touch_qm_sensor_config API must follow the above Channel and Sensor numbering
when configuring the Sensors.
6.3.7.5
For the QMatrix operation, the CAT_CLK and GCLK_CAT clocks must be setup appropriately as
a first step. The QMatrix and Common configuration parameters in the touch_config_at32uc3l.h
configuration must then be set up.
114
QMatrix method hardware resource requirement for UC3L
QMatrix method Channel and Sensor numbering for UC3L
QMatrix method API Flow for UC3L
Figure 38 QMatrix channel numbering for UC3L
8207J-AT42-02/11
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