ATAVRQTOUCHX Atmel, ATAVRQTOUCHX Datasheet - Page 139

• Manufacturer Part Number: ATAVRQTOUCHX
• Description: BOARD EVAL CAPACITIVE TOUCH
• Manufacturer: Atmel
• Series: QTouch™r

Specifications of ATAVRQTOUCHX

• Sensor Type: Touch, Capacitive
• Sensing Range: 1 Slider, 1 Wheel, 2 Buttons
• Interface: USB
• Voltage - Supply: 5V, USB
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: AT90USB1287, ATxmega128A1
• Silicon Manufacturer: Atmel
• Silicon Family Name: ATxmega
• Kit Contents: Board
• Svhc: No SVHC (15-Dec-2010)
• Core Architecture: AVR
• Core Sub-architecture: AVR19
• Kit Features: One Slider, One Wheel And 2
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Sensitivity: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Fields
aks_group
detect_threshold
detect_hysteresis
position_resolution
6.3.16.8 touch_at_status
structure
Input / Output
Use
Structure
field
status change
base_count
current_count
6.3.16.9 touch_qm_dma_t
structure
Input / Output
Use
Fields
dma_ch1
dma_ch2
6.3.16.10 touch_qm_pin_t
structure
Input / Output
Use
Fields
x_lines
Type
uint32_t
Type
uint8_t
uint8_t
Type
at status change t
uint16_t
uint16_t
touch_at_status
Output structure received as part of the Autonomous QTouch Interrupt callback
function.
Data structure which holds the status parameters for the autonomous QTouch
sensor.
touch_qm_dma_t
Input to the touch_qm_sensors_start_acquisition() API.
Data structure which holds the DMA channel information for touch acquisition
data transfer
touch_qm_pin_t
Input to the library
Data structure which holds the Pin configuration information for QMatrix
Comment
Indicates the DMA channel 1. Can take values from 0 – 11, but should not
be same as dma_ch2
Indicates the DMA channel 2. Can take values from 0 – 11, but should not
be same as dma_ch1
Comment
Bitmask that indicates the selected X pins for QMatrix. If bit n is set, Xn is
enabled for QMatrix; n can be 0 to 17. Any other bits set are ignored. Note:
For QMatrix operation, X8 is not available as it must be used for ACREFN
function.
Bit
Type
aks_group_t
threshold_t
hysteresis_t
resolution_t
18
-
17
16
The base count currently stored by the autonomous touch
Comment
Autonomous QTouch Status change.
sensor. This is useful for autonomous touch debugging
purposes.
The current count acquired by the autonomous touch
sensor. This is useful for autonomous touch debugging
purposes.
15
Comment
AKS group to which the sensor belong.
Detection threshold for the sensor
Detect hysteresis for the sensor.
Resolution required for the sensor.
14
13
12
11
10
9
8
7
6
5
4
3
139
2
1
0