ATMEGA1284P-XPLD Atmel, ATMEGA1284P-XPLD Datasheet - Page 7

• Manufacturer Part Number: ATMEGA1284P-XPLD
• Description: Development Boards & Kits - AVR MEGA-1284P Xplained Evaluation kit
• Manufacturer: Atmel

Specifications of ATMEGA1284P-XPLD

• Rohs: yes
• Product: Evaluation Kits
• Tool Is For Evaluation Of: ATmega1284P, AT32UC3B1256
• Core: AVR32
• Interface Type: USB
• Operating Supply Voltage: 5 V
• Data Bus Width: 32 bit
• Factory Pack Quantity: 1

4.2 I/O expansion headers
8377B-AVR-11/11
Please note that programming the
tool will erase the boot loader.
Please refer to the Atmel application note, AVR370: MEGA-1284P Xplained
Getting Started Guide, for more details regarding how to program the onboard
microcontrollers.
There are four available I/O expansion headers in the kit. Because of the low pin
count on the device, the I/O expansion header pins are shared with onboard
functionality. If “clean” expansion ports are needed, cut-straps are available to
remove onboard functionality.
the respective header pins.
Table 4-2. Atmel MEGA-1284P Xplained I/O expansion header – J1.
Table 4-3. MEGA-1284P Xplained I/O expansion header – J2.
Pin
1
2
3
4
5
6
7
8
9
10
Note:
Pin
1
2
3
4
5
6
7
8
9
10
Notes:
J1
TWI SDA
TWI SCL
USART RXD0
USART TXD0
SPI SS
SPI MOSI
SPI MISO
SPI SCK
GND
VCC_P3V3
J2
ADC0
ADC1
ADC2
ADC3
ADC4
ADC5
ADC6
ADC7
GND
VCC_ANA_P3V3
1. These signals can be disconnected from the board controller by cutting the cut-
1. AREF with 100nF capacitor to GND can be connected to ADC0 by shorting two
2. These signals can be disconnected from the sensor/filter output by cutting the
straps marked SPI on the bottom side of the board.
pads marked EXTERNAL AREF on the bottom side of the board.
cut-straps marked SENSORS & FILTER on the bottom side of the board.
(1)
(2)
(2)
(2)
(1)
(1)
(1)
(1)
ATmega1284P pin
PC1
PC0
PD0
PD1
PB4
PB5
PB6
PB7
-
-
ATmega1284P pin
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
-
-
Table 4-2
Atmel AT32UC3B1256
through
Shared with onboard functionality
Header J4, board controller
Header J4, board controller
Header J4
Header J4
Board controller
Header J4, DataFlash, board controller
Header J4, DataFlash, board controller
Header J4, DataFlash, board controller
-
-
Shared with onboard functionality
Possible to connect to AREF
-
-
-
-
Filter output
Light sensor
NTC sensor
-
-
Table 4-5
show what is shared on
using a programming
AVR364
7