Atmel AT91SAM9261-EK User Manual
AT91SAM9261-EK Evaluation Board
..............................................................................................
User Guide
6198C–ATARM–15-Dec-06
AT91SAM9261-EK Evaluation Board User Guide
Table of Contents
Section 1
Overview...............................................................................................1-1
1.1 Scope........................................................................................................1-1
1.2 Deliverables ..............................................................................................1-1
1.3 The AT91SAM9261-EK Evaluation Board................................................1-1
Section 2
Setting Up the AT91SAM9261-EK
Evaluation Board ..................................................................................2-1
2.1 Electrostatic Warning ................................................................................2-1
2.2 Requirements............................................................................................2-1
2.3 Layout .......................................................................................................2-2
2.4 Powering Up the Board.............................................................................2-4
2.5 Backup Power Supply...............................................................................2-4
2.6 Getting Started..........................................................................................2-4
2.7 AT91SAM9261-EK Block Diagram ...........................................................2-5
Section 3
Board Description ................................................................................. 3-1
3.1 AT91SAM9261 Microcontroller .................................................................3-1
3.2 AT91SAM9261 Block Diagram .................................................................3-4
3.3 Memory .....................................................................................................3-5
3.4 Clock Circuitry...........................................................................................3-5
3.5 Reset Circuitry ..........................................................................................3-5
3.6 Shutdown Controller .................................................................................3-5
3.7 Power Supply Circuitry..............................................................................3-5
3.8 Remote Communication ...........................................................................3-5
3.9 Audio Stereo Interface ..............................................................................3-5
3.10 User Interface ...........................................................................................3-5
3.11 Debug Interface ........................................................................................3-6
3.12 Expansion Slot ..........................................................................................3-6
3.13 PIO Usage ...............................................................................................3-7
Section 4
Configuration Straps .............................................................................4-1
4.1 Configuration Straps .................................................................................4-1
Section 5
Schematics ........................................................................................... 5-1
5.1 Schematics ...............................................................................................5-1
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Section 6
Errata....................................................................................................6-1
6.1 JTAGSEL S5 Footprint Selector ...............................................................6-1
Section 7
Revision History....................................................................................7-1
7.1 Revision History ........................................................................................7-1
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Section 1
Overview
1.1 Scope The AT91SAM9261-EK evaluation kit is an effective platform for evaluating chip perfor-
mance and developing code for applications based on the AT91SAM9261.
This guide is a description of the hardware included in the AT91SAM9261-EK evaluation
kit. Software files are available on the DVD-ROM included in the kit and described in
“Deliverables” below.
1.2 Deliverables The AT91SAM9261-EK package contains the following items:
! an AT91SAM9261-EK board
! one A/B-type USB cable
! one serial RS232 cable
! one RJ45 crossed Ethernet cable
1.3 The
AT91SAM9261EK Evaluation
Board
! universal input AC/DC power supply with US and EU plug adapter
! one DVD-ROM containing summary and full datasheets, datasheets with electrical
and mechanical characteristics, application notes and getting started documents for
all development boards and AT91 microcontrollers. An AT91 software package with C
and assembly listings is also provided. This allows the user to begin evaluating the
AT91 A R M
The board is equipped with an AT91SAM9261 (217-ball LFBGA package) together with
the following:
! 64 Mbytes of SDRAM memory
! 256 Mbytes of NAND Flash memory
! one Atmel
! one USB device port interface
! two USB host port interfaces
! one DBGU serial communication port
! JTAG/ICE debug interface
®
Thumb® 32-bit microcontroller quickly.
®
serial DataFlash
®
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Overview
! one Ethernet 100-base TX with three status LEDs
! one Atmel AT73C213 Audio DAC
! one 3.5" 1/4 VGA TFT LCD Module with TouchScreen and backlight
! one Power LED and two general-purpose LEDs
! four user input pushbuttons
! one wakeup input pushbutton
! one reset pushbutton
! one DataFlash SD/MMC card slot
! two expansion footprint connectors (solder side)
! one Lithium Coin Cell Battery Retainer for 12 mm cell size
! dual pitch prototyping area
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Section 2
Setting Up the AT91SAM9261-EK
Evaluation Board
2.1 Electrostatic Warning
2.2 Requirements In order to set up the AT91SAM9261-EK evaluation board, the following items are
The AT91SAM9261-EK evaluation board is shipped in a protective anti-static package.
The board must not be subjected to high electrostatic potentials. A grounding strap or
similar protective device should be worn when handling the board. Avoid touching the
component pins or any other metallic element.
required:
! the AT91SAM9261-EK evaluation board itself
! AC/DC power adapter (5V at 2A), 2.1 mm by 5.5 mm
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Setting Up the AT91SAM9261-EK Evaluation Board
2.3 Layout
Figure 2-1. AT91SAM9261-EK Layout - Top View
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Figure 2-2. AT91SAM9261-EK Layout - Bottom View
Setting Up the AT91SAM9261-EK Evaluation Board
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Setting Up the AT91SAM9261-EK Evaluation Board
2.4 Powering Up the Board
2.5 Backup Power Supply
AT91SAM9261-EK requires 5V DC (±5%). DC power is supplied to the board via the 2.1
mm by 5.5 mm socket (J1). The coaxial power plug center pin is positive polarity .
The user has the possibility to add a battery (3V Lithium Battery CR1225 or equivalent)
in order to permanently power the backup part of the device. In this case, J9 configuration must to be set in position 1, 2.
Refer to Table 4-1, “Configuration Jumpers and Straps”.
2.6 Getting Started The AT91SAM9261-EK evaluation board is delivered with one CD-ROM allowing the
user to begin evaluating the AT91 ARM Thumb 32-bit microcontroller quickly. Please
refer to the AT91 web site, www.atmel.com/products/AT91/, for the most up-to-date infor-
mation on getting started with the AT91SAM9261-EK.
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2.7 AT91SAM9261EK Block
Diagram
Figure 2-3. Block Diagram
Setting Up the AT91SAM9261-EK Evaluation Board
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Setting Up the AT91SAM9261-EK Evaluation Board
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