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SMART ARM-based Microcontrollers
SAME70-XPLD
USER GUIDE
Preface
The Atmel® SAM E70 Xplained evaluation kit is a hardware platform to
evaluate the Atmel ATSAME70Q21 microcontroller.
Supported by the Atmel Studio integrated development platform, the kit
provides easy access to the features of the ATSAME70Q21 and explains
how to integrate the device in a custom design.
The Xplained Pro MCU series evaluation kits include an on-board
Embedded Debugger, and no external tools are necessary to program or
debug the ATSAME70Q21.
The Xplained Pro extension series evaluation kits offers additional
peripherals to extend the features of the board and ease the development of
custom designs.
Atmel-44050A-SAME70-XPLD_User Guide-12/2015
Table of Contents
Preface............................................................................................................................ 1
1. Introduction................................................................................................................3
1.1. Kit Contents..................................................................................................................................3
1.2. Related Items............................................................................................................................... 3
1.3. Kit Overview................................................................................................................................. 3
2. Getting Started...........................................................................................................6
2.1. Xplained Pro Quick Start.............................................................................................................. 6
2.2. Design documentation and relevant links.....................................................................................6
3. Xplained Pro.............................................................................................................. 7
3.1. Embedded Debugger................................................................................................................... 7
3.2. Hardware Identification System....................................................................................................7
3.3. Power Sources............................................................................................................................. 8
3.4. Xplained Pro Standard Extension Header....................................................................................8
3.5. Xplained Pro Power Header.........................................................................................................9
4. Hardware User Guide.............................................................................................. 11
4.1. Microcontroller............................................................................................................................ 11
4.2. Power Distribution.......................................................................................................................11
4.3. Connectors................................................................................................................................. 12
4.4. Peripherals................................................................................................................................. 30
4.5. Zero Ohm Resistors................................................................................................................... 38
4.6. Embedded Debugger Implementation........................................................................................41
5. Board Schematics....................................................................................................44
6. Board Layout........................................................................................................... 51
7. Evaluation Board/kit Important Notice..................................................................... 57
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1. Introduction
This user guide introduces the Atmel SAME70-XPLD evaluation kit and describes the development and
debugging capabilities for applications running on a SAM E70 ARM-based embedded microcontroller.
1.1. Kit Contents
•Boards
–One SAME70-XPLD board
•Cables
–One Micro-AB type USB cable
1.2. Related Items
•Atmel SAM E70 Series Datasheet
1.3. Kit Overview
1.3.1. Evaluation Kit Architecture
Figure 1-1 Evaluation Kit Architecture
SDRAM
16Mb SDRAM
ETHERNET
Ethernet 10/100 Interface
SDCARD
4-bit SDCARD
Reader Interface
USB DEBUG
USB Micro A/B Connector
ATMEL EDBG
Atmel Embedded Debugguer
JTAG
20-Pin JTAG Connector
ARDUINO CONNECTORS
8-Expansion Headers
Arduino R3 compatible PIO Signals
(Not Populated)
XPRO CONNECTORS
3-Expansions Headers
Compatible with Atmel XPRO Extensions
TARGET USB
USB Micro A/B Connector
CAMERA MODULE
Camera Interface Connector
for CAMx-EB Camera Module series
(Not Populated)
TRACE
20-pin debug connector
For Trace
(Not Populated)
EEPROM
I²C - 2k-bit serial EEprom
And Unique 128-bit serial number
AT24MAC402
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1.3.2. Evaluation Kit Specifications
Table 1-1 Evaluation Kit Specifications
Characteristic Specifications
Temperature Operating 0°C to +70°C
Storage -40°C to +85°C
Relative Humidity 0 to 90% (non-condensing)
RoHS status Compliant
Ordering code ATSAME70-XPLD
1.3.3. Board Features
Table 1-2 Board Specifications
Characteristics Specifications
PCB characteristics 83.5 × 105 × 16mm (4 layers)
Processor ATSAME70Q21 (144-lead LQFP package) ARM Cortex-M7 Processor.
Processor clock sources 12 MHz crystal oscillator
32.768 kHz crystal oscillator (not populated)
EEPROM One AT24MAC402 EEPROM
SDRAM One IS42S16100E 16 Mb SDRAM
SD/MMC One 4-bit SD card connector
USB One Micro-AB USB device
One Micro-AB USB for EDBG debug interface
Camera interface Camera Extension Header for connection with ISI Modules (not populated)
Ethernet One Ethernet PHY (RMII 10/100)
Debug port One JTAG interface connector
One ETM Trace interface connector (not populated)
Expansion connectors Three Atmel XPRO Extension Headers
Arduino R3 compatible set of headers (not populated)
GPIO,TWI, SPI, USART, UART and Audio interfaces are accessible via these
headers
Board supply voltage 5V from USB target, from USB Debug or from Arduino shield
On-board power regulation is performed by a 3.3V LDO
User interface Reset and free user pushbutton
One green user LED
1.3.4. Board Overview
The Atmel SAME70-XPLD is a hardware platform to evaluate the Atmel ATSAME70Q21.
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It offers a set of features that enables the ATSAME70Q21 user to get started with the SAM V71, SAM
V70, SAM E70 and SAM S70 peripherals right away and to get an understanding of how to integrate the
device in their own design.
The SAME70-XPLD board is equipped with the interface connectors described in Table 1-3.
Table 1-3 SAME70-XPLD Board Interface Connectors
Header Interfaces to
J302 USB A device. Supports USB device using a Micro-AB connector
J400 Camera Interface Connector (not populated)
J401-J402 Atmel XPRO expansion connectors
J403 Connector for Trace (not populated) (Footprint available on bottom side)
J406 JTAG, 20-pin connector
J500–J507 Expansion connectors with Arduino R3 compatible PIO signals (not populated)
J600 SD/MMC connector (available on bottom side)
J700 Ethernet ETH1
J900 Debug USB interface. Supports USB device using a Micro-AB connector. Interface used for
target debug
Figure 1-2 SAME70-XPLD Board Overview
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2. Getting Started
2.1. Xplained Pro Quick Start
Three steps to start exploring the Atmel Xplained Pro platform:
1. Download .Atmel Studio
2. Launch Atmel Studio.
3. Connect a USB cable (Standard-A to Micro-B or Micro-AB) between the PC and the DEBUG USB
port of the board.
When the Atmel SAME70-XPLD is connected to your computer for the first time, the operating system will
perform a driver software installation. The driver file supports both 32- and 64-bit versions of Microsoft ®
Windows® XP, Windows Vista®, Windows 7, and Windows 8.
Once the board is powered, Atmel Studio will auto detect which kind of MCU and extension board(s) are
connected. Atmel Studio will present links to relevant information like datasheets and kit documentation.
The kit landing page in Atmel Studio also has the option to launch Atmel Software Framework (ASF)
example applications for the kit. The SAM E70 device is programmed and debugged by the on-board
Embedded Debugger and therefore no external programmer or debugger tool is needed.
2.2. Design documentation and relevant links
The following list contains links to the most relevant documents and software for SAME70-XPLD:
•Xplained Pro products - Atmel Xplained Pro is a series of small-sized and easy-to-use evaluation
kits for Atmel microcontrollers and other Atmel products. It consists of a series of low-cost MCU
boards for evaluation and demonstration of features and capabilities of different MCU families.
•Atmel Studio - Free Atmel IDE for development of C/C++ and assembler code for Atmel
microcontrollers.
•Atmel sample store - Atmel sample store where you can order samples of devices.
•EDBG User Guide - User guide containing more information about the on-board Embedded
Debugger.
•IAR Embedded Workbench® for ARM® - This is a commercial C/C++ compiler that is available for
ARM®. There is a 30 day evaluation version as well as a code size limited kick-start version
available from their website. The code size limit is 16KB for devices with M0, M0+, and M1 cores
and 32KB for devices with other cores.
•Atmel Data Visualizer - Atmel Data Visualizer is a program used for processing and visualizing
data. Data Visualizer can receive data from various sources such as the Embedded Debugger Data
Gateway Interface found on Xplained Pro boards and COM ports.
•Design Documentation - Package containing schematics, BOM, assembly drawings, 3D plots,
layer plots etc.
•Hardware Users Guide in PDF format - PDF version of this User Guide.
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3. Xplained Pro
Xplained Pro is an evaluation platform that provides the full Atmel microcontroller experience. The
platform consists of a series of Microcontroller (MCU) boards and extension boards, which are integrated
with Atmel Studio, have Atmel Software Framework (ASF) drivers and demo code, support data
streaming, and more. Xplained Pro MCU boards support a wide range of Xplained Pro extension boards,
which are connected through a set of standardized headers and connectors. Each extension board has
an identification (ID) chip to uniquely identify which boards are connected to an Xplained Pro MCU board.
This information is used to present relevant user guides, application notes, datasheets, and example
code through Atmel Studio.
3.1. Embedded Debugger
The SAME70-XPLD contains the Atmel Embedded Debugger (EDBG) for on-board debugging. The
EDBG is a composite USB device of three interfaces: a debugger, Virtual COM Port, and a Data Gateway
Interface (DGI).
Together with Atmel Studio, the EDBG can program and debug the ATSAME70Q21. On the SAME70-
XPLD, the SWD interface is connected between the EDBG and the ATSAME70Q21.
The Virtual COM Port is connected to a UART on the ATSAME70Q21 and provides an easy way to
communicate with the target application through terminal software. It offers variable baud rate, parity, and
stop bit settings. Note that the settings on the ATSAME70Q21 must match the settings applied in the
terminal software.
Note: If not set automatically, data terminal ready (DTR) must be set in the terminal software.
The DGI consists of several physical interfaces for communication with the host computer.
Communication over the interfaces are bidirectional. It can be used to send events and values from the
ATSAME70Q21 or as a generic printf-style data channel. Traffic over the interfaces can be timestamped
on the EDBG for more accurate tracing of events. Note that timestamping imposes an overhead that
reduces maximal throughput. is used to send and receive data through DGI.Atmel Data Visualizer
For further documentation on the EDBG, see the .EDBG User Guide
3.2. Hardware Identification System
All Xplained Pro compatible extension boards have an Atmel ATSHA204 CryptoAuthentication â„¢ chip
mounted. This chip contains information that identifies the extension with its name and some extra data.
When an Xplained Pro extension is connected to an Xplained Pro MCU board the information is read and
sent to Atmel Studio. The Atmel Kits extension, installed with Atmel Studio, will give relevant information,
code examples, and links to relevant documents. The table below shows the data fields stored in the ID
chip with example content.
Table 3-1 Xplained Pro ID Chip Content
Data field Data type Example content
Manufacturer ASCII string Atmel'\0'
Product Name ASCII string Segment LCD1 Xplained Pro'\0'
Product Revision ASCII string 02'\0'
Product Serial Number ASCII string 1774020200000010’\0’
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The extension headers can be used to connect a variety of Xplained Pro extensions to Xplained Pro MCU
boards or to access the pins of the target MCU on Xplained Pro MCU boards directly.
Table 3-3 Xplained Pro Standard Extension Header
Pin number Name Description
1 ID Communication line to the ID chip on an extension board
2 GND Ground
3 ADC(+) Analog to digital converter, alternatively positive part of differential
ADC
4 ADC(-) Analog to digital converter, alternatively negative part of differential
ADC
5 GPIO1 General purpose I/O
6 GPIO2 General purpose I/O
7 PWM(+) Pulse width modulation, alternatively positive part of differential
PWM
8 PWM(-) Pulse width modulation, alternatively negative part of differential
PWM
9 IRQ/GPIO Interrupt request line and/or general purpose I/O
10 SPI_SS_B/
GPIO
Slave select for SPI and/or general purpose I/O
11 I2C_SDA Data line for I2C interface. Always implemented, bus type.
12 I2C_SCL Clock line for I2C interface. Always implemented, bus type.
13 UART_RX Receiver line of target device UART
14 UART_TX Transmitter line of target device UART
15 SPI_SS_A Slave select for SPI. Should preferably be unique.
16 SPI_MOSI Master out slave in line of serial peripheral interface. Always
implemented, bus type.
17 SPI_MISO Master in slave out line of serial peripheral interface. Always
implemented, bus type.
18 SPI_SCK Clock for serial peripheral interface. Always implemented, bus type.
19 GND Ground
20 VCC Power for extension board
3.5. Xplained Pro Power Header
The power header can only be used as supply for external peripherals or extension boards. Care must be
taken not to exceed the total current limitation of the on-board regulator when using the 3.3V pin.
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4. Hardware User Guide
4.1. Microcontroller
The SAME70-XPLD board is built around the ATSAME70Q21 in a 144-lead LQFP package. It is a low-
power ARM Cortex-M7 application microcontroller achieving high-performance computing device and
embedding a wide range of communication peripherals. It features a combination of user interface
functionalities and high data rate IOs, camera interface, 10/100 Ethernet ports, high-speed USB and SD
Card.
The ARM Cortex-M7 processor supports SDRAM memory through an EBI interface. An internal 150 MHz
multi-layer AHB bus architecture associated with 24 XDMA channels, 384 Kbytes of SRAM and 2048
Kbytes of Flash sustains the high bandwidth required by the microcontroller and the high-speed
peripherals.
Figure 4-1 SAM E70 Block Diagram
12-layer Bus Matrix
fMAX 150 MHz
XDM A
PCK0..2
XIN32
XOUT32
ERASE
VDDCORE
VDDIO
VDDOUT
Voltage
Regulator
TST
WKUP0..13
VDDIO
XIN
XOUT
VDDPLL
RTCOUT0
RTCOUT1
S M MMMSS S S
S
MM
M
M
M
S
System Controller
SM
In-Circuit Emulator
MPU
Cortex-M7 Processor
fMAX 300 MHz
NVIC
FPU
TPIU
ETM
16 Kbytes ICache + ECC16 Kbytes DCache + ECC
TCM
Interface
AXIM
AHBP AHBS
AXI Bridge
TCK/SWCLK
TDI
TDO/TRACESWO
JTAGSEL
Serial Wire Debug/JTAG Boundary Scan
TRACECLK
TRACED0..3
TMS/SWDIO
NRST
PIOA/B/C/D/E
24-channel
XDMA
ROM
Boot
Program
Multi-port
SRAM
Flash
2048 Kbytes
1024 Kbytes
512 Kbytes
Flash
Unique ID
ITCM
DTCM USBHS
Transceiv er
External Bus Interface
Static Memory Controller (SMC)
SDRAM Controller (SDRAMC)
NAND Flash Logic
QSPI
XIP DMA
ISI GMAC
MII/RMII
5 x
UART
3 x
TWIHS
3 x
USART
2 x
PWM
2 x
12-bit
AFE ACC 12-bit
DAC
PIO SSC HSMCI 2 x
SPI
4 x
TC
XDM A
DMA
Peripheral Bridge
URXD0. .4
UTXD0..4
VREFN
CANRX0..1
CANTX0..1
RXD0. .2
SCK0..2
RTS0..2
TXD0..2
CTS 0. .2
DSR0. .2, DTR 0. .2
RI0. .2, DC D0..2
ICM/SHA
PIODC CLK
PIODC EN1 ..2
PIODC 0. .7
TF
TK
TD
RD
RK
RF
MCDA0.. 3
MCCDA
MCCK
SPIx_NPCS0 ..3
SPIx_MISO
SPIx_MOSI
SPIx_SP CK
PWMCx_PWMH0..3
PWMCx_PWML0. .3
PWMCx_PWMFI0..2
PWMCx_PWMEXTRG0 ..1
AFEx_ADTRG
AFEx_AD0.. 11
DAC0. .1
DATRG
TWD0. .2
TWCK0. .2
2 x
MCAN
GTXCK, GR XCK, GREFC K
GC R S, GC OL, GC RS DV
GMDC, G MDIO
GTS UCO MP
GR X0..3, GTX0..3
GR XER , G RXDV
GTXER, GTXDV
ISI_D[11:0]
ISI_P CK, IS I_MCK
ISI_HS YNC, ISI_VSYNC
HSDP
HSDM
QMISO /Q IO1
QMOS I/QIO0
QS CK, Q CS
QIO2.. 3
A[23:0], D[15 :0 ]
A21/NANDALE
A22/NANDCLE
NANDOE, NANDWE
A0/NLB, NUB
NWAIT, NCS 0..3, NRD, NWE
A16/S DBA0, A17/SDBA1
RAS, CAS, DQM0..1, SDC K, SDC KE, S DA10
DMA DMA
Temp Sensor
TIOB0. .11
TCLK0..1 1
TIOA0..1 1
XDM AXDM AXDM AXDM AXDM AXDM AXDM AXDM AXDM A
XDM A
FIFO
XDM A
TRNG
AES
DMA
VREFP
Backup RAM
1 Kbyte
TCM SRAM
System RAM
0–256 Kbytes
128–384 Kbytes
0–256 Kbytes
PMC
4/8/12 MHz
RC Oscillator
RSTC
SM
POR
SUPC
RTTRTC
WDT
UPLL
PLLA
3-20 MHz
Crystal
Oscillator
32 kHz
Crystal
Oscillator
32 kHz
RC Oscillator
Immediate Clear
256-bit SRAM
(GPBR)
Backup
RSWDT
4.2. Power Distribution
The SAME70-XPLD has two power sources as described in the figure .Power Supply Block Diagram
The kit can be powered from the EDBG USB or from the target USB. The kit automatically selects a
source to draw power. Priority is given to TARGET USB power input.
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Figure 4-2 Power Supply Block Diagram
Coin Cell
TARGET USB
EDBG USB
VCC_5V0
4.3. Connectors
These sections describe the implementation of all connectors and headers on SAME70-XPLD and their
connection to the ATSAME70Q21. The tables of connections in these sections also describe which
signals are shared between the headers and on-board functionality. The figure below shows all available
connectors and jumpers on the SAME70-XPLD.
Figure 4-3  SAME70-XPLD Connector Overview
J406 - SAME70 De bug (SWD)
CAMERA
INTERFACE
J600 - SDCARD Socket
(Bott om Side)
J900
DEBUG USB
Core sight 20 - SWD + ETM
(Bott om Side)
J506 - SPI
J504 - Analog High J502 - Analog Low J501 - Power
J500 - Digital HighJ503 - Digital Lo wJ505 - Com municat ion
J402 - Exte n sion Header 2 J401 - Exte n sion Header 1 J101 - Power Header
VDDCORE VCC_MCU_3V3
J200 - ERASE
J700 - Et he rnet RJ45
J507 - Digital Extra
J302
Targe t USB
OPTIONOPTIONOPTION
OPTION OPTION OPTION
OPTION
OPTION
OPTION
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4.3.1. Extension Headers
The Xplained Pro headers EXT1 and EXT2 on SAME70-XPLD give access to the I/O of the
microcontroller in order to expand the system, e.g. by connecting extensions boards. The headers have a
pitch of 2.54mm.
Table 4-1 EXT1 Header
EXT1 Pin SAM E70
Pin
Function Shared Functionality
1 [ID ] -- ID_EXT1 Signal connected to Embedded Debugger
2 [GND] -- -- Ground Connection with Extension Board
3 [ADC(+)] PC31 AFE1_AD6 & (Arduino Shield)J502 Header J504 Header
4 [ADC(-)] PA19 AFE0_AD8 (Arduino Shield)J502 Header
5 [GPIO1] PB3 GPIO/RTS0 , , & Camera Connector EXT2 Header J504 Header
J507 Header (Arduino Shield)
6 [GPIO2] PB2 GPIO/CTS0 , & EXT2 Header J504 Header J507 Header
(Arduino Shield)
7 [PWM(+)] PA0 PWMC0_H0 --
8 [PWM(-)] PC30 TIOB5 (Arduino Shield)J502 Header
9 [IRQ/GPIO] PD28 WKUP5 , , Camera Connector Embedded Debugger J503
Header J505 Header & (Arduino Shield)
10 [SPI_SS_B/GPIO] PC17 GPIO --
11 [I2C_SDA] PA3 TWD0 , , Camera Connector EXT2 Header J500 Header
(Arduino Shield), AT24MAC402 Embedded,
Debugger
12 [I2C_SCL] PA4 TWCK0 , , Camera Connector EXT2 Header J500 Header
(Arduino Shield), AT24MAC402 Embedded,
Debugger
13 [UART_RX] PB0 RXD0 , & EXT2 Header J505 Header J507 Header
(Arduino Shield)
14 [UART_TX] PB1 TXD0 , & EXT2 Header J505 Header J507 Header
(Arduino Shield)
15 [SPI_SS_A] PD25 SPI0_NPCS1 , (Arduino Shield)Camera Connector J500 Header
16 [SPI_MOSI] PD21 SPI0_MOSI , , & EXT2 Header Camera Connector J500 Header
J506 Header Embedded (Arduino Shield),
Debugger
17 [SPI_MISO] PD20 SPI0_MISO , & EXT2 Header J500 Header J506 Header
(Arduino Shield), Embedded Debugger
18 [SPI_SCK} PD22 SPI0_SPCK , , & EXT2 Header Camera Connector J500 Header
J506 Header Embedded (Arduino Shield),
Debugger
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EXT1 Pin SAM E70
Pin
Function Shared Functionality
19 [GND] -- -- Ground Connection with Extension Board
20 [VCC] -- -- Power For Extension Board (3.3V only)
Table 4-2 EXT2 Header
EXT2 Pin SAM E70
Pin
Function Shared Functionality
1 [ID ] -- ID_EXT2 Signal connected to Embedded
Debugger
2 [GND] -- -- Ground Connection with Extension
Board
3 [ADC(+)] PD30 AFE0_AD0 , & Camera Connector J502 Header
J503 Header (Arduino Shield)
4 [ADC(-)] PC13 AFE1_AD1 (Arduino Shield)J502 Header
5 [GPIO1] PA6 GPIO , Camera Connector J503 Header
(Arduino Shield)
6 [GPIO2] PD11 GPIO , & Camera Connector J500 Header
J503 Header (Arduino Shield)
7 [PWM(+)] PC19 PWMC0_H2 , Camera Connector J503 Header
(Arduino Shield)
8 [PWM(-)] PD26 PWMC0_L2 (Arduino Shield)J502 Header
9 [IRQ/GPIO] PA2 WKUP2 (Arduino Shield), J503 Header
Embedded Debugger
10 [SPI_SS_B/
GPIO]
PA24 GPIO , Camera Connector J507 Header
(Arduino Shield)
11 [I2C_SDA] PA3 TWD0 , , Camera Connector EXT1 Header
J500 Header (Arduino Shield),
AT24MAC402 Embedded Debugger,
12 [I2C_SCL] PA4 TWCK0 , , Camera Connector EXT1 Header
J500 Header (Arduino Shield),
AT24MAC402 Embedded Debugger,
13 [UART_RX] PA21 RXD1 (Arduino Shield), J507 Header
Embedded Debugger
14 [UART_TX] PB4 TXD1 (Arduino Shield), J507 Header
Embedded Debugger
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EXT2 Pin SAM E70
Pin
Function Shared Functionality
15 [SPI_SS_A] PB3 USART_SPI_NSS_MASTER_0 , , EXT1 Header Camera Connector
J504 Header J507 Header & (Arduino
Shield)
PD31 USART_SPI_NSS_MASTER_0 Camera Connector
PB2 USART_SPI_NSS_SLAVE , & EXT1 Header J504 Header J507
Header (Arduino Shield)
PD27 SPI0_NPCS3 , & Camera Connector J503 Header
J505 Header (Arduino Shield)
16 [SPI_MOSI] PD21 SPI0_MOSI , , EXT1 Header Camera Connector
J500 Header J506 Header & (Arduino
Shield), Embedded Debugger
PB1 USART_SPI_MOSI , & EXT1 Header J505 Header J507
Header (Arduino Shield)
17 [SPI_MISO] PD20 SPI0_MISO , & EXT1 Header J500 Header J506
Header Embedded (Arduino Shield),
Debugger
PB0 USART_SPI_MOSI , & EXT1 Header J505 Header J507
Header (Arduino Shield)
18 [SPI_SCK} PD22 SPI0_SPCK , , EXT1 Header Camera Connector
J500 Header J506 Header & (Arduino
Shield), Embedded Debugger
PB13 USART_SPI_SPCK & (ArduinoJ504 Header J507 Header
Shield)
19 [GND] -- -- Ground Connection with Extension
Board
20 [VCC] -- -- Power For Extension Board (3.3V only)
4.3.2. Arduino Connectors
Five 8-pin, one 10-pin, one 2×3-pin and one 2×18-pin headers footprints (J500 to J507) are implemented
on the board to enable the addition of "Arduino shields" extension cards. These accessory boards are
various and widely available on the market, often custom developed. Due to the PIO multiplexing of the
ATSAME70Q21, various peripheral signals may be connected to each pin. These connectors are
mechanically (location and footprint) compatible with the Arduino R3 shields.
Important:  As the SAM E70 signals have a voltage level of 3.3V, 5V level shields cannot
properly function with SAME70-XPLD.
In addition to its standard IO functionality, the SAM E70 microcontroller can provide alternate functions to
external IO lines available on the J500 to J507 headers.
These alternate functions are:
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•UARTs: UART1, UART2, UART3, UART4
•USARTs: USART0, USART1, USART2
•SPI: SPI0
•I²C: TWI0, TWI2
•Timer capture and compare: TIOA[0, 2,11], TIOB[5, 7, 8,11], TCLK[1, 2, 5, 8,11]
•Clock out: PCK0, PCK1, PCK2
•PWMs: PWMC0_PWMEXTRG[0,1], PWMC0_PWMH[0:3], PWMC_PWML[0, 2, 3],
PWMC1_PWMEXTRG[0,1], PWMC1_PWMFI[0:2], PWMC1_PWMH[0, 2], PWMC1_PWML[0:3]
•DIGITAL AUDIO: TD, TK, TF, RD, RK, RF, GTSUCOMP
•CAN: CANRX0, CANTX0, CANRX1, CANTX1
•Analog: ADVREF, AFE0_AD[0, 6, 8], AFE1_AD[1, 3, 5, 6], DAC[0,1]
•GPIO: MISC
•RESET
Refer to the for further details on the PIO multiplexing and alternate functionSAM E70 Series datasheet
selection.
Caution:  Like the Arduino Due, SAME70-XPLD runs at 3.3V and the maximum voltage that
the I/O pins can tolerate is 3.3V, connecting higher voltages e.g. 5V to those I/O pin could
damage the board.
Important:  not all pins of the shield connectors are necessarily connected to an I/O of the
ATSAME70Q21. Each shield should be checked for compatibility against the SAME70-XPLD
schematics before it is purchased and connected.
4.3.2.1. J500 Header
J500 is a 10-pin header with 2.54mm pitch. It is not populated by default and can be used to connect to
Arduino Shields. It includes PWM, Timer Counter and I2C interface signals and analog reference.
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Figure 4-4 J500 Header
J406 - SAME70 De bu g (SWD)
J600 - SDCARD Socket
(Bott om Side )
J900
DEBUG USB
Co resigh t 20 - SWD + ETM
(Bott om Side )
VDDCORE VCC_MCU_3V3
J200 - ERASE
J700 - Etherne t RJ45
J302
Targe t USB
CAMERA
INTERFACE
J501 - Powe r
OPTION
J502 - Analog Low
OPTION
J504 - Analog High
OPTION
J506 - SPI
OPTION
OPTION
J500 - Digital High
OPTION
J503 - Digital Low
OPTION
J505 - Comm un ication
OPTION
J507 - Digital Extra
OPTION
J402 - Extensio n Heade r 2 J401 - Extension Header 1 J101 - Powe r Header
Table 4-3 J500 Header IOs
Pin PCB
Marking
PIO Primary
Function
Alternate Function
10 SCL PA4 TWCK0 TCLK0 UTXD1 WKUP3
9 SDA PA3 TWD0 PCK2 -- --
8 AREF ADVREF -- -- -- --
7 GND -- System
ground
-- -- --
6 D13 PD22 SPI0_SPCK TIOB11 PWMC0_PWMH2 --
5 D12 PD20 SPI0_MISO GSTUCOMP PWMC0_PWMH0 --
4 D11 PD21 SPI0_MOSI TIOA11 PWMC0_PWMH1 --
PD11 GTSUCOMP PWMC0_PWMH0 -- --
3 D10 PD25 SPI0_NPCS1 URXD2 PWMC0PWML1 --
2 D9 PC9 TIOB7 -- -- --
1 D8 PA17 PWMC0_PW
MH3
AFE0_AD6 PCK1 --
Info:  By default, pin 4 is connected to PD21 PIO through a 0R serial resistor. Alternately, it can
be connected to PD11. To do so R210 must be removed and R212 must be mounted.
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4.3.2.2. J501 Header
J501 is a 8-pin header with 2.54mm pitch. It is not populated by default and can be used to connect to
Arduino Shields. It allows power distribution (3.3V and 5V) to any Arduino Shield connected on the
SAME70-XPLD board.
Figure 4-5  J501 Header
J406 - SAME70 De bu g (SWD)
J600 - SDCARD Socket
(Bott om Side )
J900
DEBUG USB
Co resigh t 20 - SWD + ETM
(Bott om Side )
VDDCORE VCC_MCU_3V3
J200 - ERASE
J700 - Etherne t RJ45
J302
Targe t USB
CAMERA
INTERFACE
J501 - Powe r
OPTION
J502 - Analog Low
OPTION
J504 - Analog High
OPTION
J506 - SPI
OPTION
OPTION
J500 - Digital High
OPTION
J503 - Digital Low
OPTION
J505 - Comm un ication
OPTION
J507 - Digital Extra
OPTION
J402 - Extensio n Heade r 2 J401 - Extension Header 1 J101 - Powe r Header
Table 4-4 J501 Header IOs
Pin PCB Marking Function
1 VBAT Not used on SAME70-XPLD board. Connected to testpoint TP910
2 IOREF ADVREF. Reference voltage for the analog inputs of the SAM E70
microcontroller. Actually connected to 3.3V.
3 RESET System reset
4 3V3 Main 3.3V supply - generated by the on-board regulator.
5 5V0 Main 5.0V supply (ouput or input). In case that pin is used as power supply
source, do check the recommendations given in on page 8Power Sources
section.
6 GND System ground
7 GND System ground
8 VIN Not connected by default. Optional 5Vcc supply for any Arduino Shield.
Info:  Pin 8 is connected to the SAME70-XPLD board through an 0R serial resistor. It is
necessary to mount 0R resistor R623 to enable the functionality.
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4.3.2.3. J502 Header
J502 is a 8-pin header with 2.54mm pitch. It is not populated by default and can be used to connect to
Arduino Shields. It includes ADC inputs and a part of the Digital Audio Interface (TD).
Figure 4-6 J502 Header
J406 - SAME70 De bu g (SWD)
J600 - SDCARD Socket
(Bott om Side )
J900
DEBUG USB
Co resigh t 20 - SWD + ETM
(Bott om Side )
VDDCORE VCC_MCU_3V3
J200 - ERASE
J700 - Etherne t RJ45
J302
Targe t USB
CAMERA
INTERFACE
J501 - Powe r
OPTION
J502 - Analog Low
OPTION
J504 - Analog High
OPTION
J506 - SPI
OPTION
OPTION
J500 - Digital High
OPTION
J503 - Digital Low
OPTION
J505 - Comm un ication
OPTION
J507 - Digital Extra
OPTION
J402 - Extensio n Heade r 2 J401 - Extension Header 1 J101 - Powe r Header
Table 4-5 J502 Header IOs
Pin PCB
Marking
PIO Primary
Function
Alternate Function
1 AD0 PD26 TD UTXD2 UTXD1 PWMC0_PWML2
2 AD1 PC31 AFE1_AD6 TCLK5 -- --
3 AD2 PD30 AFE0_AD0 UTXD3 -- --
4 AD3 PA19 AFE0_AD8 PWMC0_PWML0 WKUP9 --
5 AD4 PC13 AFE1_AD1 PWMC0_PWMH3 -- --
6 AD5 PC30 AFE1_AD5 TIOB5 SPI1_NPCS3 --
7 AD6 PA17 AFE0_AD6 PWMC0_PWMH3 PCK1 --
8 AD7 PC12 AFE1_AD3 TIOB8 CANRX1 --
Info:  Pins 6, 7, 8 are connected to SAM E70 PIOs through 0R serial resistors. It is necessary
to mount them to enable the PIO functionality, respectively R214, R216, R236.
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4.3.2.4. J503 Header
J503 is a 8-pin header with 2.54mm pitch. It is not populated by default and can be used to connect to
Arduino Shields. It includes PWM, Timer Counter, SPI Chip Select and UART3.
Figure 4-7 J503 Header
J406 - SAME70 Deb ug (SWD)
J600 - SDCARD Socket
(Bott om Side)
J900
DEBUG USB
Core sight 20 - SWD + ETM
(Bott om Side)
VDDCORE VCC_MCU_3V3
J200 - ERASE
J700 - Ethe rnet RJ45
J302
Targe t USB
CAMERA
INTERFACE
J501 - Power
OPTION
J502 - Analog Low
OPTION
J504 - An alog High
OPTION
J506 - SPI
OPTION
OPTION
J500 - Digital High
OPTION
J503 - Digital Lo w
OPTION
J505 - Co mmu nicatio n
OPTION
J507 - Digital Ext ra
OPTION
J402 - Exte nsion He ader 2 J401 - Exte nsion He ader 1 J101 - Powe r He ad er
Table 4-6 J503 Header IOs
Pin PCB
Marking
PIO Primary Function Alternate Function
8 D7 PA2 PWMC0_PWMH1 WKUP2 --
7 D6 PC19 PWMC0_PWMH2 -- --
6 D5 PD11 PWMC0_PWMH0 -- --
5 D4 PD27 SPI0_NPCS3 PWMC0_PWML3 TWD2
4 D3 PA6 PCK0 UTXD1 --
PD10 PWMC0_PWML0 TD --
3 D2 PA5 PWMC1_PWML3 URXD1 WKUP4
2 D1
(TXD)
PD30 UTXD3 AFE0_AD0 --
4 D0
(RXD)
PD28 URXD3 TWCK2 CANRX1
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Info:  By default, pin 4 is connected to SAM E70 PA6 PIO through a 0R serial resistor.
Alternately, it can be connected to PD10. To do so, R217 must be removed and R218 must be
mounted.
4.3.2.5. J504 Header
J504 is a 8-pin header with 2.54mm pitch. It is not populated by default and can be used to connect to
Arduino Shields. It includes ADC inputs, DAC outputs, CAN interface and Digital Audio Receive interface
(RF, RD, RK).
Figure 4-8 J504 Header
J406 - SAME70 De bu g (SWD)
J600 - SDCARD Socket
(Bott om Side )
J900
DEBUG USB
Co resigh t 20 - SWD + ETM
(Bott om Side )
VDDCORE VCC_MCU_3V3
J200 - ERASE
J700 - Et he rnet RJ45
J302
Targe t USB
CAMERA
INTERFACE
J501 - Powe r
OPTION
J502 - An alog Lo w
OPTION
J504 - An alog High
OPTION
J506 - SPI
OPTION
OPTION
J500 - Digital High
OPTION
J503 - Digital Low
OPTION
J505 - Co mm unication
OPTION
J507 - Digital Extra
OPTION
J402 - Exte nsion Header 2 J401 - Exte nsion Header 1 J101 - Powe r Heade r
Table 4-7 J504 Header IO
Pin PCB
Marking
PIO Primary
Function
Alternate Function
1 AD8 PD24 RF TCLK11 PWMC0_PWML0 -- --
2 AD9 PA10 RD PWMC0_PWMEXTRG
0
-- -- --
3 AD10 PA22 RK PWMC0_PWMEXTRG
1
-- -- --
4 AD11 PC31 AFE1_AD6 TCLK5 -- -- --
5 DAC0 PB13 DAC0 PWMC0_PWML2 PCK0 -- --
6 DAC1 PD0 DAC1 PWMC1_PWML0 SPI1_NPCS1 -- --
7 CANRX PB3 CANRX0 RTS0 PCK2 AFE0_AD2 WKUP12
8 CANTX PB2 CANTX0 AFE0_AD5 SPI0_NPCS0 CTS0 --
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4.3.2.6. J505 Header
J505 is a 8-pin header with 2.54mm pitch. It is not populated by default and can be used to connect to
Arduino Shields. It includes UART0, UART2, UART4 and TWI interfaces.
Figure 4-9 J505 Header
J406 - SAME70 Deb ug (SWD)
J600 - SDCARD Socket
(Bott om Side)
J900
DEBUG USB
Core sight 20 - SWD + ETM
(Bott om Side)
VDDCORE VCC_MCU_3V3
J200 - ERASE
J700 - Ethern et RJ45
J302
Ta rget USB
CAMERA
INTERFACE
J501 - Power
OPTION
J502 - An alog Low
OPTION
J504 - An alog High
OPTION
J506 - SPI
OPTION
OPTION
J500 - Digital High
OPTION
J503 - Digital Lo w
OPTION
J505 - Co mmu nicat ion
OPTION
J507 - Digital Ext ra
OPTION
J402 - Exte nsion Hea der 2 J401 - Exte nsion Hea der 1 J101 - Power Hea der
Table 4-8 J505 Header IOs
Pin PCB
Marking
PIO Primary
Function
Alternate Function
8 D14 PB1 TXD0 TK GTSUCOMP PWMC0_PWMH1 AFE1_AD0
7 D15 PB0 RXD0 TF PWMC0_PWMH0 AFE0_AD10 --
6 D16 PD16 TXD2 -- -- -- --
5 D17 PD15 RXD2 -- -- -- --
4 D18 PD19 UTXD4 CTS2 -- -- --
3 D19 PD18 URXD4 RTS2 -- -- --
2 D20 PD27 TWD2 SPI0_NPCS3 PWMC0_PWML3 -- --
1 D21 PD28 TWCK2 CANRX1 URXD3 WKUP5 --
4.3.2.7. J506 Header
J506 is a 2x3-pin header with 2.54mm pitch. It is not populated by default and can be used to connect to
Arduino Shields. It includes the SPI interface.
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Figure 4-10 J506 Header
J406 - SAME70 De bu g (SWD)
J600 - SDCARD Socket
(Bott om Side )
J900
DEBUG USB
Co resigh t 20 - SWD + ETM
(Bott om Side )
VDDCORE VCC_MCU_3V3
J200 - ERASE
J700 - Etherne t RJ45
J302
Targe t USB
CAMERA
INTERFACE
J501 - Powe r
OPTION
J502 - Analog Low
OPTION
J504 - Analog High
OPTION
J506 - SPI
OPTION
OPTION
J500 - Digital High
OPTION
J503 - Digital Low
OPTION
J505 - Comm un ication
OPTION
J507 - Digital Extra
OPTION
J402 - Extensio n Heade r 2 J401 - Extensio n Heade r 1 J101 - Power He ade r
Table 4-9 J506 Header IOs
Pin PCB Marking PIO Primary Function
1 MISO PD20 SPI0_MISO
2 5V0 -- Power supply
3 SPCK PD22 SPI0_SPCK
4 MOSI PD21 SPI0_MOSI
5 RST NRST System reset
6 GND -- System ground
4.3.2.8. J507 Header
J507 is a 2x18-pin header with 2.54mm pitch. It is not populated by default and can be used to connect to
Arduino Shields. It includes PWM, Timer Counters, Audio Transmit interface, CAN interface, USART1 and
USART2 interfaces and four UART interfaces.
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Figure 4-11 J507 Header
J406 - SAME70 Debug (SWD)
J600 - SDCARD Socket
(Bot tom Side)
J900
DEBUG USB
Coresig ht 20 - SWD + ETM
(Bot tom Side)
VDDCORE VCC_MCU_3V3
J200 - ERASE
J700 - Ethe rnet RJ45
J302
Targe t USB
CAMERA
INTERFACE
J501 - Power
OPTION
J502 - Analog Low
OPTION
J504 - Analog High
OPTION
J506 - SPI
OPTION
OPTION
J500 - Digital High
OPTION
J503 - Digital Low
OPTION
J505 - Com municat ion
OPTION
J507 - Digital Extra
OPTION
J402 - Extension Header 2 J401 - Exten sion Header 1 J101 - Power Header
Table 4-10 J507 Header IOs
Pin PCB
Marking
PIO Primary Function Alternate Function
1 5V0 -- Power supply -- -- --
2 5V0 -- Power supply -- -- --
3 D22 PA18 PCK2 PWMC1_PWMEXTR
G1
-- --
4 D23 PB1 TK PWMC0_PWMH1 AFE1_AD0 GTSUCOMP
5 D24 PB0 TF PWMC0_PWMH0 AFE0_AD10 RXD0
6 D25 PD17 SCK2 -- -- --
7 D26 PD19 CTS2 UTXD4 -- --
8 D27 PD18 RTS2 URXD4 -- --
9 D28 PA5 PWMC1_PWML3 URXD1 WKUP4 --
10 D29 Not Connected
11 D30 PA29 TCLK2 -- -- --
12 D31 PA1 WKUP1 PWMC0_PWML0 TIOB0 --
13 D32 Not Connected
14 D33 PA26 PWMC1_PWMFI1 TIOA2 -- --
15 D34 Not Connected
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Pin PCB
Marking
PIO Primary Function Alternate Function
16 D35 PA12 PWMC1_PWMH0 PWMC0_PWMH1 -- --
17 D36 PA13 PWMC1_PWML1 PWMC0_PWMH2 -- --
18 D37 Not Connected
19 D38 PB13 SCK0 PWMC0_PWML2 DAC0 PCK0
20 D39 PB2 CTS0 SPI0_NPCS0 CANTX0 AFE0_AD5
21 D40 PB3 RTS0 PCK2 CANRX0 AFE0_AD2
22 D41 PA31 PWMC1_PWMH2 PCK2 SPI0_NPCS1 --
23 D42 Not Connected
24 D43 PA23 PWMC0_PWMH0 PWMC1_PWML2 SCK1 --
25 D44 PA25 CTS1 PWMC0_PWMH2 -- --
26 D45 PA24 RTS1 PWMC0_PWMH1 -- --
27 D46 PA21 RXD1 PWMC1_PWMFI0 AFE0_AD1 PCK1
28 D47 PB4 TXD1 PWMC0_PWMH2 TWD1 --
29 D48 PA30 PWMC1_PWMEXTR
G0
PWMC0_PWML2 WKUP11 --
30 D49 PA28 PWMC1_PWMFI2 TCLK1 -- --
31 D50 PA18 PWMC1_PWMEXTR
G1
PCK2 -- --
32 D51 Not Connected
33 D52 PC12 CANRX1 AFE1_AD3 TIOB8 --
34 D53 PC14 CANTX1 TCLK8 -- --
35 GND -- System ground -- -- --
36 GND -- System ground -- -- --
4.3.3. Camera Connector
A 2×15-pin, 100mil pin-header camera connector is implemented to give access to the SAM E70 parallel
Image Sensor Interface (ISI).
Atmel SAME70-XPLD [USER GUIDE]
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Pin Number SAM E70 Pin Function Shared Functionality
18 PD22 ISI_D0 , , & EXT1 Header EXT2 Header J500 Header J506 Header
(Arduino Shield), Embedded Debugger
19 PD21 ISI_D1 , , & EXT1 Header EXT2 Header J500 Header J506 Header
(Arduino Shield), Embedded Debugger
20 PB3 ISI_D2 , , & EXT1 Header EXT2 Header J504 Header J507 Header
(Arduino Shield)
21 PA9 ISI_D3 Embedded Debugger
22 PA5 ISI_D4 & (Arduino Shield)J503 Header J507 Header
23 PD11 ISI_D5 , & (Arduino Shield)EXT2 Header J500 Header J503 Header
24 PD12 ISI_D6 Embedded Debugger
25 PA27 ISI_D7 SD Card
26 PD27 ISI_D8 , & (Arduino Shield)EXT2 Header J503 Header J505 Header
27 PD28 ISI_D9 , & (Arduino Shield), EXT1 Header J503 Header J505 Header
Embedded Debugger
28 PD30 ISI_D10 , & (Arduino Shield)EXT2 Header J502 Header J503 Header
29 PD31 ISI_D11 EXT2 Header
30 -- GND --
4.3.4. USB
The SAME70-XPLD board features a Micro-USB connector that implements the SAM E70 USB high
speed interface. This connector is labeled as TARGET USB on the board.
Figure 4-13 USB Interface Schematic
ATMEL
SAME70
VCC_USB
C219
10pF
5V D- D+ ID G
MICRO USB AB 5
J302
1
2
3
4
5
R233
5.62K
D302
PRTR5V0U2X
DNP
1
2
3
4
HSDP 13 7
HSDM 13 6
VBG 14 0
Table 4-12 USB Interface Signal Descriptions
J302 Pin Mnemonic Pin on SAM E70 SAM E70 Signal Name Signal Description
1 VBUS -- -- 5V power
2 DM 136 HSDM Data minus
3 DP 137 HSDP Data plus
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J302 Pin Mnemonic Pin on SAM E70 SAM E70 Signal Name Signal Description
4 ID -- -- On-the-go identification
5 Ground GND GND System Ground
4.3.5. Current Measurement Header (VCC_MCU_P3V3 )
A 100mil pin-header marked "J203" is located at the upper edge of the SAME70-XPLD. All the power
going to the ATSAME70Q21 is routed through this header. To measure the power consumption of the
device, remove the jumper and replace it with an ammeter.
Figure 4-14 VCC_MCU_P3V3 Connector Placement J203
J203
Caution:  Removing the jumper from the pin-header while the board is connected to otherwise
powered extension boards or systems may cause the ATSAME70Q21 to be powered through its
I/O pins. This could cause permanent damage to the device.
4.3.6. VDDCORE Current Measurement
A 100mil pin-header marked "J201" is located at the upper edge of the SAME70-XPLD board. It is not
mounted by default and is replaced by a shunt trace between the two pads of the connector. All power to
VDDCORE of the ATSAME70Q21 is routed through this header. To measure the power consumption of
VDDCORE, cut the shunt trace between the two points, mount a header or solder wires and connect an
ammeter.
Figure 4-15 VDDCORE Connector Placement J201
J201
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Caution:  Leaving J201 open while the main power source is present is to be avoided. This
would feed all power pins of the ATSAME70Q21 except VDDCORE, which may cause
permanent damage to the device.
4.3.7. Chip Erase Header
The chip erase header J200 is connected to the SAM E70 erase pin (PB12) and the main 3.3V. To erase
the contents of the SAM E70 flash memory, set a jumper on J200 and turn the power supply on. The
jumper can be removed soon after the power is on (flash erasing takes only 200ms). Using the chip erase
jumper is the only way to erase a chip with the security bit set.
Figure 4-16 ERASE Chip Connector Placement J200
J200
PB12
3V3
4.3.8. Trace Connector
ATSAME70Q21 supports 4-bit parallel trace. SAME70-XPLD implements a 20-pin, 50-milCoreSight 20
connector footprint on PCB bottom side (not mounted by default).
Figure 4-17 Trace connector location on PCB
CORESIGHT20
SWD+ETM
J403
To use the trace functionality, an external debugger with trace support and CoreSight 20 pinout has to be
used. The table CoreSight 20-Pin Trace Connector shows the connections on the board.
Figure 4-18 CoreSight 20-Pin Trace Connector Schematic
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Table 4-13 CoreSight 20-Pin Trace Connector
Pin Number SAM E70 Pin Function Shared With
1-[VTREF] - VCC_3V3 --
2-[SWDIO] PB6 SWDIO Embedded Debugger
3-5-9-15-17-19[GND] - System Ground --
4-[SWCLK] PB7 SWCLK Embedded Debugger
6-[TRACESWO] PB5 TRACESWO Embedded Debugger
7-[KEY] - - --
8-11-13[NC] - - --
10-[nSRST] NRST NRST and Arduino Connectors Embedded Debugger
12-[TRACECLK] PD8 TRACECLK Ethernet
14-[TRACED0] PD4 TRACED0 Ethernet
16-[TRACED1] PD5 TRACED1 Ethernet
18-[TRACED2] PD6 TRACED2 Ethernet
20-[TRACED3] PD7 TRACED3 Ethernet
4.4. Peripherals
4.4.1. Clock Circuitry
The SAME70-XPLD board features three clock sources:
•Two crystals for the ATSAME70Q21 processor
•One crystal oscillator for the Ethernet MII/RMII chip
The crystals of the ATSAME70Q21 have cut-straps next to them that can be used to measure the
oscillator safety factor. This is done by cutting the strap and adding a resistor across the strap.
Information about oscillator allowance and safety factor can be found in the application note AVR4100;
information about clock calibration and compensation can be found in the application note AT03155.
Table 4-14 Main Components Associated with the Clock Systems
Quantity Description Component Assignment
1 Crystal for internal clock, 12 MHz XC301
1 Crystal for RTC clock, 32.768 kHz (Not Populated) XC300
1 Oscillator for Ethernet clock RMII, 25 MHz XC700
Table 4-15 External Crystals Connected on SAM E70
SAM E70 pin Function
32.768 kHz External Crystal Connection (Not Populated by default)
PA7 XIN32: Slow Clock Oscillator Input
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SAM E70 pin Function
PA8 XOUT32: Slow Clock Oscillator Output
12 MHz External Crystal Connection
PB9 XIN: Main Oscillator Input
PB8 XOUT: Main Oscillator Output
Figure 4-19 SAM E70 Crystals Schematic
SAME70
XIN
XOUT
C302
12pF
C303
12pF
XC301
12MHz
3
21
4
PB8 14 1
PB9 14 2
J301
1 2
PA8
PA7
XOUT 32
XIN32
PA8
J300
12
C301 18pF
DNP
36
35
XC300 32.768 kHz
DNP
C300
18pF
DNP
PA7
4.4.2. Mechanical Buttons
Two pushbutton switches are available. When a button is pressed, it drives the corresponding I/O line to
GND.
•One board reset button (SW100). When pressed and released, this pushbutton causes a power-on
reset of the whole board.
•One wakeup pushbutton that brings the processor out of Low-power mode (SW300)
Figure 4-20 Mechanical Button Schematic
VCC_3V3
EDBG_TARGET_RESET
TARGET_RESET _SENSE
TARGET_RESET
R110
39R
C104
10nF
R122
0R
TP100
SW100
1
42
3
R107
330R
R106
100K
SAME70
USER BUTTON
WKUP6
PA11
R300
39R
PA11
64
TP300
SW300
1
42
3
Important:  There is no pull-up resistor connected to SW300 button. Remember to enable the
internal pull-up in the SAM E70 to use the button.
4.4.3. LEDs
There is one green LED mounted on the SAME70-XPLD. It can be activated by driving the connected I/O
line to a low level.
Figure 4-21 LED Indicators Schematic
USER LED
LED0
PC8
VCC_3V3
R303
330R
D301
Green
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Table 4-16 LED Connection
SAM E70 Pin Function Shared With
PC8 Green LED --
4.4.4. SDRAM
The SAME70-XPLD features one IS42S16100F-5BL, 512K×16×2, 10ns, SDRAM chip. The SDRAM is
connected to chip select NCS1. SDRAM access can be configured in the SDRAM Controller in the SAM
E70. Table 4-17 SDRAM Connections on page 32 lists all I/O lines connected to the SDRAM.
Figure 4-22 SDRAM Schematic
D0
D1
D2
D3
D4
D5
D7
D6
D8
D9
D10
D11
D12
D13
D14
D15
A2
A3
A5
A4
A6
A7
A8
A9
A10
A11
SDA10
BA0
SDCK
SDCKE
SDCS
RAS
CAS
SDWE
A0/NBS0
NWR1/NBS1
VCC_3V3
VCC_3V3
VCC_3V3
PC0
PC1
PC2
PC3
PC4
PC5
PC6
PC7
PE0
PE1
PE2
PE3
PE4
PE5
PA15
PA16
PC20
PC21
PC22
PC23
PC24
PC25
PC26
PC27
PC28
PC29
PD13
PA20
PD23
PD14
PC15
PD16
PD17
PD29
PC18
PD15
R137 22R
R115 22R
R617 100K
C908
2.2uF
R128 22R
R119 22R
R132 22R
R124 22R
C922
100nF
R136 22R
R140 22R
R114 22R
R127 22R
R118 22R
C918
100nF
R125 22R
R131 22R
R123 22R
R111 22R
C921
100nF
R135 22R
R139 22R
R113 22R
R126 22R
R117 22R
C917
100nF
R130 22R
R121 22R
C920
100nF
R134 22R
R138 22R
R112 22R
R116 22R
C919
100nF
C916
100nF
U901
IS42S16100F-5BL
A0
N6
A1
P7
A2
P6
A3
R6
A4
R2
A5
P2
A6
P1
A7
N2
A8
N1
A9
M2
A10
N7
A11
M1
DQ0 A6
DQ1 B7
DQ2 C7
DQ3 D7
DQ4 D6
DQ5 E7
DQ6 F7
DQ7 G7
DQ8 G1
DQ9 F1
DQ10 E1
DQ11 D2
DQ12 D1
DQ13 C1
DQ14 B1
DQ15 A2
CLK
K2
CKE
L1
CS
L7
RAS
K6
CAS
K7
WE
J7
LDQM
J6
UDQM
J2
VDD2
R7
VDD3
H6
VDD1
A7
VSS1
A1
VSS2
R1
VSSQ4 F6
VSSQ3 E2
VSSQ2 C6
VSSQ1 B2
VDDQ4 F2
VDDQ3 E6
VDDQ2 C2
VDDQ1 B6
NC1
G2
NC2
G6
NC3
H1
NC4
H2
NC5
H7
NC7 K1
NC8 L2
NC9 L6
NC10 M6
NC11 M7
NC6 J1
R129 22R
R120 22R
R133 22R
Table 4-17 SDRAM Connections
SAM E70 Pin Function SDRAM Function Shared With
PC0 D0 Data line 0 –
PC1 D1 Data line 1 –
PC2 D2 Data line 2 –
PC3 D3 Data line 3 –
PC4 D4 Data line 4 –
PC5 D5 Data line 5 –
PC6 D6 Data line 6 –
PC7 D7 Data line 7 –
PE0 D8 Data line 8 –
PE1 D9 Data line 9 –
PE2 D10 Data line 10 –
PE3 D11 Data line 11 –
PE4 D12 Data line 12 –
PE5 D13 Data line 13 –
Atmel SAME70-XPLD [USER GUIDE]
Atmel-44050A-SAME70-XPLD_User Guide-12/2015
32
SAM E70 Pin Function SDRAM Function Shared With
PA15 D14 Data line 14 –
PA16 D15 Data line 15 –
PC20 A2 Address line 0 –
PC21 A3 Address line 1 –
PC22 A4 Address line 2 –
PC23 A5 Address line 3 –
PC24 A6 Address line 4 –
PC25 A7 Address line 5 –
PC26 A8 Address line 6 –
PC27 A9 Address line 7 –
PC28 A10 Address line 8 –
PC29 A11 Address line 9 –
PD13 SDA10 Address line 10 –
PA20 BA0 Bank select line 0 –
PD23 SDCK Clock –
PD14 SDCKE Clock Enable –
PC15 SDCS Chip Select –
PD16 RAS RAS Shield (Arduino Shield)J505 Header
PD17 CAS CAS (Arduino Shield)J507 Header
PD29 SDWE Write Enable –
PC18 A0/NBS0 LDQM –
PD15 NWR1/NBS1 UDQM (Arduino Shield)J505 Header
4.4.5. SD Card
The SAME70-XPLD has one standard SD card slot, connected to the High-speed Multimedia Card
Interface (HSMCI) of the SAM E70. Table 4-18 SD/MMC Socket J600 Signal Descriptions on page 34
lists all I/O lines connected to the SD card connector.
Figure 4-23 SD/MMC Socket J600 Schematic
SD_WP
SD_D0
SD_D1
SD_D2
SD_D3
SD_CLK
SD_DETECT
SD_CMD
VCC_3V3
VCC_3V3
PA30
PA31
PA26
PA27
PA28
PA25
PC16
R607
100K
J901
J600
SD Card SOCKET
DAT0
7
DAT1
8
DAT2
9
DAT3
1
VDD 4
VSS1 3
VSS2 6
SHELL 12
CLK
5
CMD
2
C/D
10
W/P
11
SHELL 13
SHELL 14
SHELL 15
R606
10K
R610
100K
R612
10K
R609
100K
R611
10K
TP600
C613
100nF
R608
100K
C612
10uF
Atmel SAME70-XPLD [USER GUIDE]
Atmel-44050A-SAME70-XPLD_User Guide-12/2015
33
Table 4-18 SD/MMC Socket J600 Signal Descriptions
Pin Mnemonic SAM E70 Pin Signal Description Shared WIth
1 DAT3 PA27 Data bit (MCDA3) Camera Connector
2 CMD PA28 Command line (MCCDA) (Arduino Shield)J507 Header
3 VSS -- Common ground --
4 VCC -- Supply voltage 3.3V --
5 CLK PA25 Clock / command line (MCCK) (Arduino Shield)J507 Header
6 VSS -- Common ground --
7 DAT0 PA30 Data bit (MCDA0) (Arduino Shield)J507 Header
8 DAT1 PA31 Data bit (MCDA1) (Arduino Shield)J507 Header
9 DAT2 PA26 Data bit (MCDA2) (Arduino Shield)J507 Header
10 C/D PC16 Card Detect --
11 WP -- Protect --
12 SHELL -- Connected to Ground --
13 SHELL -- Connected to Ground --
14 SHELL -- Connected to Ground --
15 SHELL -- Connected to Ground --
4.4.6. Ethernet
The ATSAME70Q21 has a built-in 10/100 Mbps Ethernet IEEE 802.3 compatible MAC with RMII
interface. The SAME70-XPLD connects the MAC to a Micrel KSZ8081RNACA RMII physical-layer
transceiver (PHY), which is connected to one RJ45 Ethernet connector.
A unique EUI-48â„¢ address is available on every SAME70-XPLD through the on-board AT24MAC402, the
EUI-48 address can be used as a MAC address for the KSZ8081RNACA. The address is also
programmed into the on-board EDBG.
Table 4-19 KSZ8081RNACA Connections on page 35 lists all pins connected from the SAM E70 to the
Ethernet PHY.
Info:  Several of the Ethernet signals are shared with the trace connector and thus there is no
Ethernet support if trace is used in an application.
Atmel SAME70-XPLD [USER GUIDE]
Atmel-44050A-SAME70-XPLD_User Guide-12/2015
34
Figure 4-24 RMII Ethernet Schematic
PHY_RESET
PHY_INTERRUPT
PHY_MDC
PHY_MDIO
PHY_CRS_DV
PHY_TXEN
PHY_TXD0
PHY_TXD1
PHY_RXER
PHY_RXD0
PHY_RXD1PHY_REFCLK
PHY_MDIO
PHY_RXD1
PHY_RXD0
PHY_CRS_DV
PHY_MDC
RMII_XTALO
RMII_XTALI
VDDPLL_1.2V
VDDA_ENET
VCC_3V3
VCC_3V3
VCC_3V3
VCC_3V3
VCC_3V3
PD0
PD1
PD2
PD3
PD5
PD6
PD4
PD7
PC10
PA14
PD8
PD9
PD8
PD5
PD6
PD9
PD4
KSZ8081RNACA
U700
VDD_1V2 1
VDDA_3V3 2
RXM 3
RXP 4
TXM 5
TXP 6
XO
7
XI
8
REXT 9
MDIO
10
MDC
11
RXD1 12
RXD0 13
VDDIO 14
CRS_RV/PHYAD1/PHYAD0 15
REF_CLK
16
RXER 17
INTRP
18
TXEN 19
TXD0 20
TXD1 21
GND1
22
LED0 /ANEN_SPEED 23
RST
24
GND2
25
R56
1.5K
C704
24PF
R238 39R
C708
2.2uF
R70210K
C709
24PF
C700
100nF
L700
C711
100nF
R67
10K
DNP
C702
100nF
C220
10uF
R704
6.49K
R69
10K
DNP
R70
10K
C92
100PF
DNP
C713
10uF
C710
100nF
R906
1K
R71
10K
DNP
XC700
25MHZ
1 4
32
R55
1.5K
DNP
C701
4.7uF
PHY_TXP
PHY_TXM
PHY_RXP
PHY_RXM
LED0_SPEED
Figure 4-25 Ethernet RJ45 Schematic
LED1_LINK
VCC_3V3
VCC_3V3
R703
470
C706
100nF
R701 470
L701
TD+_R1
TD-_R2
TCT_R3
RD+_R7
1000pF
Y
+
75 OHMS
1 : 1
NC_4
C7
C6_RX-
C3_RX+
C5
C4
C8
C2_TX-
C1_TX+
NC_5
L4
L3
L2
L1
1 : 1
75 OHMS
75 OHMS75 O HMS
G
S2
S1
RD-_R8
RCT_R6
+
J700
RJ45
1
2
7
3
6
8
14
13
11
9
10
4
5
12
C705
100nF
PHY_TXP
PHY_TXM
PHY_RXP
PHY_RXM
LED0_SPEED
VCC_3V3 R604 10K
Table 4-19 KSZ8081RNACA Connections
SAM E70 Pin Exthernet Function Shared With
PD0 PHY_REFCLK (Arduino Shield)J504 Header
PD1 PHY_TXEN –
PD2 PHY_TXD0 –
PD3 PHY_TXD1 –
PD4 PHY_CRS_DV Trace Connector
PD5 PHY_RXD0 Trace Connector
PD6 PHY_RXD1 Trace Connector
Atmel SAME70-XPLD [USER GUIDE]
Atmel-44050A-SAME70-XPLD_User Guide-12/2015
35
SAM E70 Pin Exthernet Function Shared With
PD7 PHY_RXER Trace Connector
PD8 PHY_MDC Trace Connector
PD9 PHY_MDIO –
PC10 PHY_RESET –
PA14 PHY_INTERRUPT –
The KSZ8081RNACA also has a set of parameters that are latched in during reset based on I/O pin
levels. These configuration options have a default mode on the kit done by external pull-up and pull-down
resistors. For detailed information about the configuration, refer to the .KSZ8081RNACA datasheet
Table 4-20 KSZ8081RNACA Configuration
Configuration Name Default Value on
Kit
Default Configuration
PHYAD 0x0h The PHYs address is 0x0h. It can be set to 0x3h if R70
and R71 are permutted.
AUTONEG Pull-Up Auto negotiation enabled and set 100Mbps speed
4.4.7. AT24MAC402
The SAME70-XPLD features one Atmel AT24MAC402 serial EEPROM with an EIA-48 MAC address
connected to the SAM E70 through I2C. This AT24MAC402 is configured on the I 2C interface with the
address 0x37h. It contains a MAC address for use with the Ethernet interface. Table 4-21 AT24MAC402
Connections on page 36 lists all I/O lines connected to the AT24MAC402 device.
Figure 4-26 AT24MAC402 Schematic
MAC24_A0
MAC24_A1
MAC24_A2
TWD0
TWCK0
VCC_3V3
VCC_3V3
PA3
PA4
PC11
R603
10K
U600
AT24MAC402-MAHM-T
A0
1
A1
2
A2
3
GND 4
SDA
5
SCL
6
WP
7
VCC 8
R600
10K
R601
10K
R602
10K
C600
100nF
Table 4-21 AT24MAC402 Connections
SAM E70 Pin Function AT24MAC402 Function Shared With
PA3 TWD0 SDA (Serial Data Line) , , , Camera Connector EXT1 Header EXT2 Header
J500 Header Embedded (Arduino Shield),
Debugger
PA4 TWCK0 SCL (Serial Click Line) , , , Camera Connector EXT1 Header EXT2 Header
J500 Header Embedded (Arduino Shield),
Debugger
PC11 GPIO WP (Write Protect) --
Atmel SAME70-XPLD [USER GUIDE]
Atmel-44050A-SAME70-XPLD_User Guide-12/2015
36
4.4.8. Debug JTAG/ICE
A 2×10-pin JTAG header is implemented on the SAME70-XPLD board to enable software development
and debugging of the board by using various JTAG emulators. The interface signals have a voltage level
of 3.3V.
Figure 4-27  JTAG/ICE Interface Schematic
ARM JTAG
SWDIO
SWCLK
TRACESWO
VCC_3V3
PB6
PB7
PB5
TARGET_RESET
R401
0R
R402
0R
R403
0R
J406
12
34
6 5
78
910
1112
1314
1516
1718
1920
R400
0R
Table 4-22 JTAG/ICE Connector J406 Signal Descriptions
Pin Signal Type Signal Description
1 VTref /
VCC_3V3
Input This is the target reference voltage. It is used to
check if the target has power, to create the logic-
level reference for the input comparators and to
control the output logic levels to the target. It is
normally fed from Vdd of the target board and must
not have a series resistor.
2 Vsupply /
VCC_3V3
Not Used This pin is not connected in J-Link. It is reserved for
compatibility with other equipment. Connect to Vdd
or leave open in target system.
3 Not used NC This pin is not used by J-Link. If the device may
also be accessed via JTAG, this pin may be
connected to nTRST, otherwise leave open.
5 Not used NC This pin is not used by J-Link. If the device may
also be accessed via JTAG, this pin may be
connected to TDI, otherwise leave open.
7 SWDIO I/O Single bi-directional data pin.
9 SWCLK Output Clock signal to target CPU. It is recommended that
this pin is pulled to a defined state of the target
board. Typically connected to TCK of target CPU.
11 Not used NC This pin is not used by J-Link. This pin is not used
by J-Link when operating in SWD mode. If the
device may also be accessed via JTAG, this pin
may be connected to RTCK, otherwise leave open.
13 SWO Output Serial Wire Output trace port. (Optional, not
required for SWD communication.)
15 RESET I/O Target CPU reset signal. Typically connected to the
RESET pin of the target CPU, which is typically
called "nRST", "nRESET" or "RESET".
17 Not used NC This pin is not connected in J-Link.
Atmel SAME70-XPLD [USER GUIDE]
Atmel-44050A-SAME70-XPLD_User Guide-12/2015
37
Pin Signal Type Signal Description
19 Not Used
(5V-Supply)
Output This pin is used to supply power to some eval
boards. Not all JLinks supply power on this pin, only
the KS (Kickstart) versions. Typically left open on
target hardware.
4-6-8-10-12-14-16-18-20 GND -- System Ground
4.5. Zero Ohm Resistors
The SAME70-XPLD has several zero ohm resistors that can be used to disconnect I/O pins of the
ATSAME70Q21 from connectors and on-board ICs and to disconnect power signals. All Arduino pin
numbers are listed in . The table lists all zero ohm resistors onArduino Connectors Zero Ohm Resistors
the kit. The figures Zero Ohm Resistors - Top Side Zero Ohm Resistors - Bottom Side and show where
they are located.
Info:  Note that some zero ohm resistors listed in the table are notZero Ohm Resistors
mounted by default on the kit.
Table 4-23 Zero Ohm Resistors
Designator Mounted From To Comments
R122 Yes TARGET_RESET TARGET_RESET_SENSE –
R201 Yes PB0 J401 - Pin 13 RXD0 on EXT1 Connector
R202 Yes PB1 J401 - Pin 14 TXD0 on EXT1 Connector
R203 Yes PD28 J401 - Pin 9
R204 Yes PD27 J402 - Pin 15 SPI Interface: Chip Select
R205 Yes J402 - Pin 17 PD20 SPI Interface: MISO Line
R207 Yes PB1 J505 - Pin 8 Arduino DUE Pin 17
R208 Yes PB0 J505 - Pin 7 Arduino DUE Pin 18
R209 Yes PD26 EXT2 –
R210 Yes PD21 J500 - Pin 4 SPI Interface: MOSI Line -
Arduino DUE Pin 20
R211 Yes PB1 J507 - Pin 4 –
R212 No PD11 J500 - Pin 4 Used for GTSUCOMP - Arduino
DUE Pin 20
R213 Yes PB0 J507 - Pin 5
R214 No PC30 J502 - Pin 6 Arduino DUE Pin 83
R215 Yes PD26 J502 - Pin 1 Arduino DUE Pin 78
R216 No PA17 J502 - Pin 7 Arduino DUE Pin 84
Atmel SAME70-XPLD [USER GUIDE]
Atmel-44050A-SAME70-XPLD_User Guide-12/2015
38

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