ATAVRQTOUCHX Atmel, ATAVRQTOUCHX Datasheet - Page 77

• 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

5.7.1.5.2.1 Tips on pin assignments for the sensor design using two pairs of SNS / SNSK
This section lists tips on selecting the pin assignments when using a single port pair for the SNS
and SNSK Pins.
Design choice for the sensor
SNSK1-SNS1 & SNSK2-SNS2 pins
are all on different ports, number of
channels = 16
(Use the 16channel library in this
case. Ensure the port definitions for
SNS1,SNSK1,SNS2,SNSK2 are all in
place)
SNSK1-SNS1 are on same port &
SNSK2-SNS2 pins are on same port,
number of channels = 8
(Use the 8channel library in this case.
Ensure the port definitions for
SNS1,SNSK1,SNS2,SNSK2 are all in
place)
SNSK1-SNS1 are on different ports &
SNSK2-SNS2 pins are on same port,
number of channels = 12
(Use the 12channel library in this
case. Ensure the port definitions for
SNS1,SNSK1,SNS2,SNSK2 are all in
place)
SNSK1-SNS1 are on same port &
SNSK2-SNS2 pins are on different
ports, number of channels = 12
(Use the 12channel library in this
case. Ensure the port definitions for
SNS1,SNSK1,SNS2,SNSK2 are all in
place)
ports
Example Port configuration with pin assignments
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E. g. SNS1(D), SNSK1(B) & SNS2(C), SNSK2(A)
Recommended configuration: (PD0, PB0), (PD1, PB1),..(PD7,
PB7), (PC0,PA0).. to (PC7, PA7). In this case channel 0 will be
on (PD0, PB0) pins, channel 1 will be on (PD1, PB1) pins,
channel 8 will be on (PC0, PA0), channel 9 will be on (PC1,
PA1) and so on up to channel 15 will be on (PC7, PA7) pins.
However, the user can mount the sensors on pins as selected
as per the rules illustrated in section 5.8.1
should be assigned as given in section 5.6.6.1.1.2
E.g. SNS1(K), SNSK1(K) & SNS2(H), SNSK2(H) on same
ports,
Recommended configuration: In case Pin configurability is not
used, (PK0, PK1), (PK2, PK3),..(PK6, PK7), (PH0,PH1).. to
(PH6, PH7).In this case channel 0 will be on (PK0, PK1) pins,
channel 1 will be on (PK2, PK3) pins, channel 4 will be on
(PH0, PH1), channel 5 will be on (PH2, PH3) and so on up to
channel 7 will be on (PH6, PH7) pins. The even pins of the port
are used as SNS pins and odd pins of the port are used as
SNSK pins.
When pin configurability is used, sensors should be mounted
on the pins as selected as per the rules illustrated in section
5.8.1 and channels should be assigned as given in section
5.6.6.1.1.2
E.g. SNS1(H), SNSK1(F) on different ports & SNS2(E),
SNSK2(E) on same ports.
Recommended configuration : In case Pin configurability is not
used, (PH0, PF0), (PH1, PF1),..(PH7, PF7), (PE0,PE1).. to
(PE6, PE7). In this case channel 0 will be on (PH0, PF0) pins,
channel 1 will be on (PH1, PF1) pins... channel 8 will be on
(PE0,PE1), channel 9 will be on (PE2,PE3) and so on up to
channel 11 will be on (PH6, PH7) pins. The even pins of the
port E are used as SNS pins and odd pins of the port E are
used as SNSK pins.
When pin configurability is used, sensors should be mounted
on the pins as selected as per rules illustrated in section 5.8.1
and channels should be assigned as given in section
5.6.6.1.1.2 and section 5.6.6.1.1.4
E.g. SNS1(G), SNSK1(G) on different ports & SNS2(B),
SNSK2(D) on same ports
Recommended configuration: In case Pin configurability is not
used, (PG0, PG1), (PG2, PG3),..(PG6, PG7), (PB0,PD0)... to
(PB7, PD7). In this case channel 0 will be on (PG0, PG1) pins,
channel 1 will be on (PG2, PG3) pins... channel 3 will be on
(PG6, PG7), channel 4 will be on (PB0,PD0) and so on up to
channel 11 will be on (PB7, PD7) pins. The even pins of the
port G are used as SNS pins and odd pins of the port G are
used as SNSK pins
When pin configurability is used, sensors should be mounted
and channels
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