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AT25DF641A-SH Datasheet(PDF) 10 Page - ATMEL Corporation

Part # AT25DF641A-SH
Description  One mechanical button switch Three LEDs Four expansion headers
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT25DF641A-SH Datasheet(HTML) 10 Page - ATMEL Corporation

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10
AVR32924
32156A-AVR-01/11
Table 6-1. UC3 touch connections.
Touch sensor
onboard
reference
QTouch
method
pin name
QMatrix
method
pin name
CAT
module
pin name
UC3 pin
Selection bit in
PINMODEx
register
QSlider X0
X7
CSB6
PA15
SP6
QSlider X1
X10
CSA10
PA19
SP10
QSlider X2
X11
CSB10
PA22
SP10
QSlider X3
X13
CSB12
PB08
SP12
QSlider YK0
YK3
CSB7
PA05
SP7
-
Y3
CSA7
PA04
SP7
QButton SNSK0
SNSK15
CSB15
PB09
SP15
-
SNS15
CSA15
PB12
SP15
NOTE
As the device has a very low pin count, a tradeoff has been made to be able to have
as many I/O lines as possible routed to the headers. The sensor lines to the Atmel
QTouch button and the Atmel QMatrix slider are shared with some of the headers.
The sensitivity of the sensor lines is very high on these exposed pins, and so touching
the I/O pins will give erroneous result in the touch sensing mechanism.
NOTE
Adding top modules to the board with functionality connected to these pins is not
recommended. Top modules without functionality on these pins will only add some
capacitive load and will not affect the QMatrix sensor significantly.
6.5 Board controller
The board controller and the Atmel AT32UC3L064 are connected together through
TWI and UART. Both interfaces can be used to communicate between the devices,
but only the UART is implemented by default in the board controller.
Table 6-2. AT32UC3L064 and board controller communication interface.
Interface
Atmel AT32UC3L064 pin
Atmel AT32UC3B1256 pin
UART RX
(1)
PA07
PA24
UART TX
(1)
PA06
PA23
TWI SCL
PB05
PA09
TWI SDA
PA21
PA10
Note:
1. These represent the RX and TX on the device. The RX on one device is
connected to TX on the other device, and visa versa.


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