This user's guide describes how to use the SAMA5D2 PTC Evaluation Kit (SAMA5D2-PTC-EK).
The SAMA5D2-PTC-EK is used to evaluate the capabilities of the Peripheral Touch Controller (PTC) designed for the
SAMA5D2 series of embedded MPUs. Refer to the Configuration Summary table in the SAMA5D2 Series Datasheet
for the list of MPUs featuring PTC.
The Microchip Website.................................................................................................................................62
The SAMA5D2-PTC-EK follows the Microchip MPU strategy for low cost evaluation kits with maximum reuse
capability, and is built on the SAMA5D2 Xplained Ultra (XULT) hardware and software ecosystem. This board is
mainly dedicated to evaluating the Peripheral Touch Controller capabilities.
Table 2-1. SAMA5D2-PTC-EK Features
CharacteristicsSpecificationsComponents
SAMA5D2-PTC-EK
Product Overview
Processor
Clock speed
Memory
DisplayOne LCD interface connectorRGB, 18 bits
SD/MMC
USB
EthernetOne ETH PHYMicrel KSZ8081RN
Debug port
SAMA5D27-CU (289-ball BGA) 14x14mm body,
0.8mm pitch
MPU: 24 MHz, 32.768 KHz
PHY: Crystal 25 MHz
Two 16-bit, 2-Gbit DDR2
One 4-Gbit Nand Flash
One QSPI Flash
One Serial Data Flash (optional)
One EEPROM
One standard SD card interface
One microSD card interface
One USB host type A
One USB device type Micro-AB
One USB HSIC
One J-Link-OB/J-Link-CDC
One JTAG interface
–
–
Winbond W972GG6KB-25
Micron MT29F4G08
Microchip SST26VF064B
Microchip SST26VF032B
Microchip 24AA02E48
With 3.3V/1.8V power switch
–
With 5V power switch
–
Connector not mounted
Embedded J-Link-OB and J-Link-CDC
(ATSAM3U4C TFBGA100)
One RGB (Red, Green, Blue) LED
Board monitor
Expansion
Board supplyFrom USB A and USB J-Link-OB5VDC
Backup power supply SuperCapELNA DSK-3R3H204T614-H2L
This section covers the specifications of the SAMA5D2-PTC-EK and provides a high-level description of the board's
major components and interfaces. This document is not intended to provide detailed documentation about the
processor or about any other component used on the board. It is expected that the user will refer to the appropriate
documents of these devices to access detailed information.
3.1 Board Overview
The fully-featured SAMA5D2-PTC-EK board integrates multiple peripherals and interface connectors, as shown in the
figure below.
SAMA5D2-PTC-EK
Board Components
3.1.1 Default Jumper Settings
The figure below shows the default jumper settings. Jumpers in red are configuration items and current measurement
points. Jumpers in blue are not populated.
The SAMA5D2 Series is a high-performance, power-efficient embedded MPU based on the ARM® Cortex®-A5
processor.
Please refer to the SAMA5D2 Series datasheet for more information.
3.2.2 Power Supply Topology and Power Distribution
3.2.2.1 Input Power Options
Two options are available to power the SAMA5D2-PTC-EK board. The USB-powered operation is the default
configuration and comes from the USB device ports (J4-J9) connected to a PC or a 5VDC supply. Such USB power
source is sufficient to supply the board in most applications. It is important to note that when the USB-powered
operation is used, the USB port down the way has a limited powering capability. If the USB-B Host port (J3) is
required to provide full powering capabilities to the target application, it is recommended to use an external DC
supply instead of a USB power source.
The following figure is a schematic of the power options.
Note: USB-powered operation eliminates additional wires and batteries. It is the preferred mode of operation for any
project that requires only a 5V source at up to 500 mA.
Jumper JP1 is used to perform MAIN_5V current measurements on the SAMA5D2-PTC-EK board.
3.2.2.2 Power Supply Requirements and Restrictions
Detailed information on the device power supplies is provided in tables “SAMA5D2 Power Supplies” and “Power
Supply Connections” in the SAMA5D2 Series datasheet.
SAMA5D2-PTC-EK
Board Components
3.2.2.3 Power-up and Power-down Considerations
Power-up and power-down considerations are described in section “Power Considerations” of the SAMA5D2 Series
datasheet.
The power-up and power-down sequences provided in the SAMA5D2 Series datasheet must be respected
for reliable operation of the device.
3.2.2.4 Power Management
The board power management uses three types of regulators:
• One dual synchronous step-down DC-DC regulator (U2 MIC2230) generates the 3.3V/800mA and 1.8V/800mA
power lines and utilizes a high-efficiency, fixed-frequency (2.5 MHz), current-mode PWM control architecture
that requires a minimum number of external components.
• One ultra low-dropout linear regulator (U3 MIC47053) generates the 1.25V/500mA from the 1.8V source.
• One high-performance single 2.5V/150mA is used as a VDDFUSE generator (U5 MIC5366).
The main regulators are enabled through a Field Effect Transistor (FET) scheme. The processor can assert SHDN (a
VDDBU-powered I/O) to shut down the regulators to enter Backup mode. All regulators on the board are also shut
down by the action of the SHDN signal.
A 3.3V battery (supercap) is implemented to permanently maintain VDDBU voltage (note: jumper JP6 must be in
place). The board can be woken up by action on the PB4 button, which drives the WKUP signal (also a VDDBUpowered I/O).
The figure below shows the power management scheme.
The SAMA5D2-PTC-EK board embeds a 2.5V regulator for fuse box programming.
Figure 3-7. VDDFUSE Regulator
3.2.2.7 Backup Power Supply
The SAMA5D2-PTC-EK board requires a power source in order to permanently power the backup part of the
SAMA5D2 device (refer to SAMA5D2 Series datasheet). The super capacitor C17 sustains such permanent power to
VDDBU when all system power sources are off.
Figure 3-8. VDDBU Powering Options
SAMA5D2-PTC-EK
Board Components
3.2.3 Reset Circuitry
3.2.4 Shutdown Circuitry
The reset sources for the SAMA5D2-PTC-EK board are:
• Power-on Reset from the power management unit,
• Push button reset BP3,
• JTAG or J-Link-OB reset from an in-circuit emulator.
Figure 3-9. Main Reset Control
The SHDN signal, output of Shutdown Controller (SHDN), drives the shutdown request to the power supply. This
output signal is supplied by VDDBU, which is present in Backup mode.
The Shutdown Controller manages the main power supply and is connected to the ENABLE input pin of the DC/DC
converter providing the main power supplies of the system.
• One board reset push button (BP3). When pressed and released, it causes a power-on reset of the board.
• One wakeup push button (BP4) connected to the SAMA5D2 WKUP pin, used to exit the processor from LowPower mode.
• One disable boot push button (BP2) used to devalidate the boot memories (refer to 3.2.8.3 CS Disable).
Figure 3-11. System Push Buttons
SAMA5D2-PTC-EK
Board Components
• One user push button (BP1) connected to PIO PB10.
Figure 3-12. User Push Button
3.2.6 Clock Circuitry
The embedded microcontroller generates its necessary clocks based on two crystal oscillators: one slow clock
(SLCK) oscillator running at 32.768 KHz and one main clock oscillator running at 24 MHz.
The SAMA5D2-PTC-EK board includes four clock sources:
• The two clocks mentioned above are alternatives for the SAMA5D2 processor (24 MHz, 32.768 kHz)
• One crystal oscillator for the Ethernet RMII chip (25 MHz)
• One crystal oscillator for the J-Link-OB microcontroller (12 MHz)
The SAMA5D2 features a DDR/SDR memory interface and an External Bus Interface (EBI) to enable interfacing to a
wide range of external memories and to almost any kind of parallel peripheral.
This section describes the memory devices mounted on the SAMA5D2-PTC-EK board:
• Two DDR2 SDRAMs
• One NAND Flash
• One QSPI Flash
• One SPI Flash (optional)
• One serial EEPROM
Additional memory can be added to the board by:
• Installing an SD or MMC card in the SD/MMC0 or SD/MMC1 slot,
• Using the USB-B port.
Support is dependent upon driver support in the OS.
3.2.7.2 DDR2/SDRAMs
Two DDR2/SDRAMs (W972GG6KB-25-2 Gbits = 16 Mbits x 16 x 8 banks) are used as main system memory,
totalling 4 Gbits of SDRAM on the board. The memory bus is 32 bits wide and operates with a frequency of up to 166
MHz.
The figure below illustrates the implementation for the DDR2 memories.
Figure 3-14. DDR2 SDRAMs
SAMA5D2-PTC-EK
Board Components
3.2.7.3 DDR_CAL Analog Input
One specific analog input, DDR_CAL, is used to calibrate all DDR I/Os.
The SAMA5D2-PTC-EK has native support for NAND Flash memory through its NAND Flash Controller. The board
implements one MT29F4G08ABA 4Gb x 16 NAND Flash connected to Chip Select three (NCS3) of the
microcontroller.
The figure below illustrates the NAND Flash memory implementation.
On-board jumper JP8 controls the selection (CS#) of the NAND Flash memory.
3.2.8 Additional Memories
3.2.8.1 Serial Flash
The SAMA5D2 includes two high-speed Serial Peripheral Interface (SPI) controllers. The SPI is a full duplex
synchronous bus supporting a single master and multiple slave devices. The SPI bus consists of the following items:
• a serial clock line (generated by the master)
• a data output line from the master
• a data input line to the master
• one or more active low Chip Select signals (output from the master)
The following figure illustrates the implementation of an SPI Flash memory.
Figure 3-17. Serial Flash
Note: The serial Flash is optional and not mounted on board.
3.2.8.2 QSPI Serial Flash
The SAMA5D2 provides two Quad Serial Peripheral Interfaces (QSPI).
A QSPI is a synchronous serial data link that provides communication with external devices in Master mode.
The QSPI can be used in SPI mode to interface with serial peripherals (such as ADCs, DACs, LCD controllers, CAN
controllers and sensors), or in Serial Memory mode to interface with serial Flash memories.
The QSPI allows the system to execute code directly from a serial Flash memory (XIP, or Execute In place,
technology) without code shadowing to RAM. The serial Flash memory mapping is seen in the system as other
memories (ROM, SRAM, DRAM, etc.).
With the support of the Quad SPI protocol, the QSPI allows the system to use high-performance serial Flash
memories which are small and inexpensive, instead of larger and more expensive parallel Flash memories.
The figure below illustrates the implementation of a QSPI Flash memory.
Figure 3-18. QSPI Serial Flash
SAMA5D2-PTC-EK
Board Components
A jumper (JP13) is used to disable the QSPI Flash.
On-board push button PB2 controls the selection (CS#) of the bootable memory components (QSPI and serial Flash)
using a non-inverting 3-state buffer.
Figure 3-19. CS Disable
SAMA5D2-PTC-EK
Board Components
The rule of operation is:
• PB2 (DISABLE_BOOT) and PB3 (RESET) pressed = booting from QSPI or optional serial Flash is disabled.
Refer to the SAMA5D2 Series datasheet for more information on standard boot strategies and sequencing.
3.2.8.4 Serial EEPROM with Unique MAC Address
The SAMA5D2-PTC-EK board embeds one Microchip 24AA02E48 I²C serial EEPROM connected on the TWI1
interface.
The TWI interface is I2C-compatible and similarly uses only two lines, namely serial data (SDA) and serial clock
(SCL). According to the standard, the TWI clock rate is limited to 400 kHz in Fast mode and 100 kHz in Normal
mode, but configurable baud rate generator permits the output data rate to be adapted to a wide range of core clock
frequencies. The TWI is used in Master mode.
The 24AA02E48 features 2048 bits of Serial Electrically-Erasable Programmable Read-Only Memory (EEPROM)
organized as 256 words of eight bits each and is accessed via an I2C-compatible (2-wire) serial interface. In addition,
the 24AA02E48 incorporates an easy and inexpensive method to obtain a globally unique MAC or EUI address
(EUI-48™).
The EUI-48 addresses can be assigned as the actual physical address of a system hardware device or node, or it
can be assigned to a software instance. These addresses are factory-programmed by Microchip and guaranteed
unique. They are permanently write-protected in an extended memory block located outside the standard 2-Kbit
memory array.
The EEPROM device is used as a “software label” to store board information such as chip type,
The figure below illustrates the implementation for the EEPROM.
Figure 3-20. EEPROM 24AA02E48
3.2.9 Secure Digital Multimedia Card (SDMMC) Interface
The SD (Secure Digital) Card is a non-volatile memory card format used as a mass storage memory in mobile
devices.
SAMA5D2-PTC-EK
Board Components
3.2.9.1 Secure Digital Multimedia Card (SDMMC) Controller
The SAMA5D2-PTC-EK board has two Secure Digital Multimedia Card (SDMMC) interfaces that support the
MultiMedia Card (e.MMC) Specification V4.41, the SD Memory Card Specification V3.0, and the SDIO V3.0
specification. It is compliant with the SD Host Controller Standard V3.0 Specification.
• The SDMMC0 interface is connected to a standard SD card interface.
• The SDMMC1 interface is connected to a microSD card interface.
3.2.9.2 SDMMC0 Card Connector
A standard MMC/SD card connector, connected to SDMMC0, is mounted on the top side of the board. The SDMMC0
communication is based on a 12-pin interface (clock, command, data (8) and power lines (2)). A card detection switch
is included.
The figure below illustrates the implementation for the SDMMC0 interface.
The board uses an ADG849 to switch the power line VDDSDHC_3V3 or VDDSDHC_1V8 through the command line
SDMMC0_VDDSEL_PA11.
Figure 3-23. SDMMC0 VDDSDHC Voltage Switching
SAMA5D2-PTC-EK
Board Components
Table 3-8. SDMMC1 Power Command
PIOSignal NameSignal Description
PA11SDMMC0_VDDSELSelects 3.3V or 1.8V
3.2.9.4 SDMMC1 Card Connector
A microSD card connector, connected to SDMMC1, is mounted on the top side of the board. The SDMMC1
communication is based on a 9-pin interface (clock, command, card detect, four data and power lines). A card
detection switch is included. The microSD connector can be used to connect any microSD card for mass storage.
The SAMA5D2-PTC-EK board is equipped with Ethernet and USB host/device communication interfaces. This
section describes the signals and connectors related to the ETH and USB communication interfaces.
3.2.10.1 Ethernet 10/100 (GMAC) Port
The SAMA5D2-PTC-EK board features a Micrel PHY device (KSZ8081) operating at 10/100 Mb/s. The board
supports RMII interface modes. The Ethernet interface consists of two pairs of low-voltage differential pair signals
designated from GRX± and GTX± plus control signals for link activity indicators. These signals can be used to
connect to a 10/100 Base-T RJ45 connector integrated on the SAMA5D2-PTC-EK board.
An individual 48-bit MAC address (Ethernet hardware address) is allocated to each product. This number is stored in
the Microchip 24AA02E48 I2C serial EEPROM (refer to Serial EEPROM with Unique MAC Address).
Additionally, for monitoring and control purposes, a LED functionality is carried on the RJ45 connectors to indicate
activity, link, and speed status.
For more information about the Ethernet controller device, refer to the Micrel KSZ8081RN controller manufacturer's
datasheet.
The USB (Universal Serial Bus) is a hot-pluggable general-purpose high-speed I/O standard for computer
peripherals. The standard defines connector types, cabling, and communication protocols for interconnecting a wide
variety of electronic devices. The USB 2.0 Specification defines data transfer rates as high as 480 Mbps (also known
as High Speed USB). A USB host bus connector uses 4 pins: a power supply pin (5V), a differential pair (D+ and Dpins) and a ground pin.
The SAMA5D2-PTC-EK board features three USB communication ports named USB-A to USB-C:
• USB-A device interface
– One USB device standard micro-AB connector.
– This port has a VBUS detection function made through the R148-R149 resistor bridge.
– The USB-A port is used as a primary power source and as a communication link for the board, and derives
power from the PC over the USB cable. In most cases, this port is limited to 500 mA.
• USB-B (host port B high- and full-speed interface)
– One USB host type A connector.
– The USB-B host port is equipped with a 500 mA high-side power switch to enable powering devices
connected to it.
• UBC-C (High-Speed Inter-Chip/HSIC port)
– One USB high-speed host port with an HSIC interface.
– The port is connected to a single 2-pin jumper.
The figure below shows the USB implementation on the USB-B port.
Figure 3-31. USB-B Interface
Figure 3-32. USB-B Type A Connector J3 Location
SAMA5D2-PTC-EK
Board Components
Table 3-13. USB-B PIO Signal Descriptions
PIOSignal NameSharedSignal Description
PB12USBB_EN_5V–Power switch enable (active high)
PB13USBB_OVCUR–Indicates overcurrent (open drain)
3.2.10.5.1 USB-B Power Switch
The USB-B Host port is equipped with a 500 mA high-side power switch for self-powered and bus-powered
applications. If the client device is bus-powered, the carrier can supply a 5V, 500mA power to the client device. The
USBB_EN_5V_PB12 signal controls the power switch and current limiter, the Micrel MIC2025, which in turn supplies
power to a bus-powered client device. Per the USB specification, bus-powered USB 2.0 devices are limited to a
maximum of 500 mA. The MIC2025 limits the current and indicates an overcurrent with the USBB_OVCUR_PB13
HSIC_DATA
HSIC_STRB
J5
DNP
1
2
signal.
The table below describes the pin assignment of the USB-A and USB-B connectors.
Table 3-14. USB-A and USB-B Connector Signal Descriptions
3.2.10.6 HSIC
High-Speed Inter-Chip (HSIC) is a standard for USB chip-to-chip interconnect with a 2-signal (strobe, data) source
synchronous serial interface using 240 MHz DDR signaling to provide only high-speed 480 Mbps data rate.
The interface operates at high speed, 480 Mbps, and is fully compatible with existing USB software stacks. It meets
all data transfer needs through a single unified USB software stack.
The HSIC interface is not used on the board and is connected to two-point jumper J5 (not mounted).
Figure 3-33. HSIC Interface
SAMA5D2-PTC-EK
Board Components
Pin NoSignal NameSignal Description
1VBUS5V power
2DMData minus
3DPData plus
4IDOn-the-go identification
5GNDCommon ground
3.3 External Interfaces
3.3.1 LCD TFT Interface
This section describes the signals and connectors related to the LCD interface.
3.3.1.1 LCD Interface
The SAMA5D2-PTC-EK board provides a connector with 18 bits of data and control signals to the LCD interface.
Other signals are used to control the LCD and are available on connector J16: TWI, SPI, two GPIOs for interrupt, 1wire and power supply lines.
This connector is used to connect LCD display series 43xx or 70xx from PDA.
3.3.1.2 LCD Expansion Header
J16 is a 1.27-mm pitch, 50-pin header. It gives access to the LCD signals.
In order to operate correctly with various LCD modules, two voltage lines are available: 3.3V and 5VCC (default). The
selection is made with 0R resistors R230 and R231.
The SAMA5D2-PTC-EK board features one RGB LED which can be controlled by the user. The three LED cathodes
are controlled via GPIO PWM or timer/counter pins.
Figure 3-36. RGB LED Indicators
SAMA5D2-PTC-EK
Board Components
Table 3-16. RGB LED PIOS
3.4 Debugging Capabilities
The SAMA5D2-PTC-EK includes two main debugging interfaces to provide debug-level access to the SAMA5D2:
• One UART through USB J-Link-CDC
• Two JTAG interfaces, one connected directly to the MPU using connector J2 and one through the J-Link-OB
interface USB port J9
3.4.1 Debug JTAG
This section describes the signals and connectors related to the JTAG interface.
A 10-pin JTAG header is provided on the SAMA5D2-PTC-EK board to facilitate software development and debugging
using various JTAG emulators. The interface signals have a voltage level of 3.3V.
synchronizing test logic and control register
access
5GNDCommon ground
TDO JTAG TEST DATA OUTPUT - Serial data
6
input from the target
RTCK - Input return test clock signal from the
7
target
TDI TEST DATA INPUT - Serial data output line,
8
sampled on the rising edge of the TCK signal
9GNDCommon ground
10nRST RESETActive-low reset signal. Target CPU reset signal.
3.4.2 Embedded Debugger (J-Link-OB) Interface
The SAMA5D2-PTC-EK includes a built-in SEGGER J-Link-On-Board device. The functionality is implemented with
an ATSAM3U4C microcontroller in an LFBGA100 package. The ATSAM3U4C provides the functions of JTAG and a
bridge USB/Serial debug port (CDC). One two-colored LED (D6) mounted near the SAM3 chip (U20) shows the
status of the J-Link-On-Board device.
J-Link-OB-ATSAM3U4C was designed in order to provide an efficient, low-cost, on-board alternative to the standard
J-Link.
The USB J-Link-OB port is used as a secondary power source and as a communication link for the board, and
derives power from the PC over the USB cable. This port is limited in most cases to 500 mA. A single PC USB port is
sufficient to power the board.
SAMA5D2-PTC-EK
Board Components
JTAG clock signal into target CPU
JTAG data output from target CPU
Some targets with a slow system clock must
synchronize the JTAG inputs to internal clocks. In the
present case, such synchronization is unneeded and
TCK is merely looped back into RTCK.
Jumper JP10 disables the J-Link-OB-ATSAM3U4C JTAG functionality. When the jumper is installed, it grounds pin 26
of the ATSAM3U4C that is normally pulled high. A quad analog switch is used to select the JTAG interface.
• Jumper JP10 not installed: J-Link-OB-ATSAM3U4C is enabled and fully functional.
• Jumper JP10 installed: J-Link-OB-ATSAM3U4C is disabled and an external JTAG controller can be used
through the 10-pin JTAG port J2.
Jumper JP10 disables only the J-Link functionality. The debug serial com port that is emulated through a
Communication Device Class (CDC) of the same USB connector remains operational (if JP9 is open).
Figure 3-40. Enabling/Disabling J-Link-OB and J-Link-CDC
DS50002709B-page 37
Figure 3-41. JTAG Switch
TDIOUT
TDIIN
PA26_3U
PA26_3U
TDOIN
TMSIN
TMSOUT
TCKIN
TCKOUT
VDD_3V3_3U
GND_POWER
JTAG_TCK_PD27
JTAG_TMS_PD30
JTAG_TDI_PD28
CON_JTAG_Pin2
CON_JTAG_Pin4
CON_JTAG_Pin8
JTAG_TDO_PD29
CON_JTAG_Pin6
R223150R-1%
R0402
U22
NLAS3899BMNTWG
WQFN-16
NCA
1
COMA
16
NOA
15
NOB
3
COMB
4
NCB
5
ABIN
2
NOC
7
COMC
8
NCC
9
CDIN
10
NOD
11
COMD
12
NCD
13
VCC
14
GND
6
R222150R-1%
R0402
R218150R-1%
R0402
3.4.3 Hardware UART via CDC
In addition to the J-Link-OB functionality, the ATSAM3U4C microcontroller provides a bridge to a debug serial port
(UART DBGU) of the SOM's processor. The port is made accessible over the same USB connection used by JTAG
by implementing Communication Device Class (CDC), which allows terminal communication with the target device.
This feature is enabled only if the SAM3U/PA25 (pin K10) is not grounded. The pin is normally pulled high and
controlled by jumper JP9.
• Jumper JP9 not installed: the J-Link-CDC is enabled and fully functional.
• Jumper JP9 installed: the J-Link-CDC device is disabled.
The USB Communications Device Class (CDC) enables conversion of the USB device into a serial communication
device. The target device running USB-Device CDC is recognized by the host as a serial interface (USB2COM,
virtual COM port) without the need to install a special host driver (since the CDC is standard). All PC software using a
COM port work without modifications with this virtual COM port. Under Windows, the device shows up as a COM
port; under Linux®, as a /dev/ACMx device. This enables the user to use host software which was not designed to be
used with USB, such as a terminal program.
Table 3-18. Debug COM Port PIOs Signal Descriptions
The table below describes the pin assignment of PIOBU connector J1.
Table 3-20. PIOBU Connector J1 Pin Assignment
3.5.2 mikroBUS Interface
The SAMA5D2-PTC-EK hosts a pair of 8-pin female headers as mikroBus interface. The mikroBUS interface defines
the main board sockets and add-on boards used for interfacing microprocessors with integrated modules with
proprietary pin configuration and silkscreen markings. The pinout consists of three groups of communication pins
(SPI, UART and TWI), four additional pins (PWM, interrupt, analog input and reset) and two power groups (+3.3V and
GND on the left, and 5V and GND on the right 1x8 header).
The SAMA5D2-PTC-EK board hosts two connectors to interface XPRO QT boards. The QTouch Xplained Pro are
extension boards that enable evaluation of Self-capacitance and Mutual capacitance modes using the Peripheral
Touch Controller (PTC). The boards show how easy it is to design a capacitive touch board solution using the PTC
without the need for any external components.
Nevertheless, the PTC IO pins available on XPRO connectors can be used as GPIO pins. Each of these can be
configured as an input or output pin according to the PIO peripheral functions.
The GPIO voltage levels depend on the VDDIOP level supported by the SAMA5D2, 3.3V in this case.
Figure 3-47. XPRO EXT1 Connector
Figure 3-48. XPRO EXT1 Connector J11 Location
MBUS SignalPin NoMBUS Signal
The following table describes the pin assignment of XPRO EXT1 connector J11.
PIOs PB00 to PB07 are available on connector J13 and can be used as GPIO pins. Each of these can be configured
as an input or output pin according to the PIO peripheral functions.
Keep nets as short as possible, therefore, DDR devices have to be placed close as possible of SAMA5D27
The layout DDR should use controlled impedance traces of ZO= 50ohm characteristic impedance.
Address, control and data traces may not exceed 1.3 inches (33.0 mm).
Address, control and data traces must be length-matched to within 0.1 inch (2.54mm).
Address, control and data traces must match the data group trace lengths to within 0.25 inches (6.35mm).
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Technical support is available through the website at: http://www.microchip.com/support
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices:
• Microchip products meet the specification contained in their particular Microchip Data Sheet.
• Microchip believes that its family of products is one of the most secure families of its kind on the market today,
when used in the intended manner and under normal conditions.
• There are dishonest and possibly illegal methods used to breach the code protection feature. All of these
methods, to our knowledge, require using the Microchip products in a manner outside the operating
specifications contained in Microchip’s Data Sheets. Most likely, the person doing so is engaged in theft of
intellectual property.
• Microchip is willing to work with the customer who is concerned about the integrity of their code.
• Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code
protection does not mean that we are guaranteeing the product as “unbreakable.”
Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection
features of our products. Attempts to break Microchip’s code protection feature may be a violation of the Digital
Millennium Copyright Act. If such acts allow unauthorized access to your software or other copyrighted work, you
may have a right to sue for relief under that Act.
Legal Notice
Information contained in this publication regarding device applications and the like is provided only for your
convenience and may be superseded by updates. It is your responsibility to ensure that your application meets with
your specifications. MICROCHIP MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER
EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY OR OTHERWISE, RELATED TO THE INFORMATION,
INCLUDING BUT NOT LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE, MERCHANTABILITY OR
FITNESS FOR PURPOSE. Microchip disclaims all liability arising from this information and its use. Use of Microchip
devices in life support and/or safety applications is entirely at the buyer’s risk, and the buyer agrees to defend,
indemnify and hold harmless Microchip from any and all damages, claims, suits, or expenses resulting from such
use. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights unless
otherwise stated.
Trademarks
The Microchip name and logo, the Microchip logo, Adaptec, AnyRate, AVR, AVR logo, AVR Freaks, BesTime,
BitCloud, chipKIT, chipKIT logo, CryptoMemory, CryptoRF, dsPIC, FlashFlex, flexPWR, HELDO, IGLOO, JukeBlox,
KeeLoq, Kleer, LANCheck, LinkMD, maXStylus, maXTouch, MediaLB, megaAVR, Microsemi, Microsemi logo, MOST,
MOST logo, MPLAB, OptoLyzer, PackeTime, PIC, picoPower, PICSTART, PIC32 logo, PolarFire, Prochip Designer,
QTouch, SAM-BA, SenGenuity, SpyNIC, SST, SST Logo, SuperFlash, Symmetricom, SyncServer, Tachyon,
TempTrackr, TimeSource, tinyAVR, UNI/O, Vectron, and XMEGA are registered trademarks of Microchip Technology
Incorporated in the U.S.A. and other countries.
APT, ClockWorks, The Embedded Control Solutions Company, EtherSynch, FlashTec, Hyper Speed Control,
HyperLight Load, IntelliMOS, Libero, motorBench, mTouch, Powermite 3, Precision Edge, ProASIC, ProASIC Plus,
ProASIC Plus logo, Quiet-Wire, SmartFusion, SyncWorld, Temux, TimeCesium, TimeHub, TimePictra, TimeProvider,
Vite, WinPath, and ZL are registered trademarks of Microchip Technology Incorporated in the U.S.A.
Adjacent Key Suppression, AKS, Analog-for-the-Digital Age, Any Capacitor, AnyIn, AnyOut, BlueSky, BodyCom,
CodeGuard, CryptoAuthentication, CryptoAutomotive, CryptoCompanion, CryptoController, dsPICDEM,
dsPICDEM.net, Dynamic Average Matching, DAM, ECAN, EtherGREEN, In-Circuit Serial Programming, ICSP,
INICnet, Inter-Chip Connectivity, JitterBlocker, KleerNet, KleerNet logo, memBrain, Mindi, MiWi, MPASM, MPF,
MPLAB Certified logo, MPLIB, MPLINK, MultiTRAK, NetDetach, Omniscient Code Generation, PICDEM,
PICDEM.net, PICkit, PICtail, PowerSmart, PureSilicon, QMatrix, REAL ICE, Ripple Blocker, SAM-ICE, Serial Quad
I/O, SMART-I.S., SQI, SuperSwitcher, SuperSwitcher II, Total Endurance, TSHARC, USBCheck, VariSense,
ViewSpan, WiperLock, Wireless DNA, and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A.
and other countries.
SQTP is a service mark of Microchip Technology Incorporated in the U.S.A.
The Adaptec logo, Frequency on Demand, Silicon Storage Technology, and Symmcom are registered trademarks of
Microchip Technology Inc. in other countries.
GestIC is a registered trademark of Microchip Technology Germany II GmbH & Co. KG, a subsidiary of Microchip
Technology Inc., in other countries.
All other trademarks mentioned herein are property of their respective companies.