Microchip Technology SAMA5D3 XPLAINED User manual

2019 Microchip Technology Inc. DS50002884A-page 1

Scope

This user guide introduces the Microchip SAMA5D3 Xplained evaluation kit and describes the development and debug-

ging capabilities for applications running on a SAMA5D36 Arm®-based microprocessor unit (MPU).

This guide provides details on the SAMA5D3 Xplained evaluation kit. It is made up of four main sections:

•Section 1. “Evaluation Kit Specifications” describes the evaluation kit content and its main features.

•Section 2. “Power-Up” provides instructions to power up the SAMA5D3 Xplained board.

•Section 3. “Hardware Introduction” provides an overview of the SAMA5D3 Xplained board.

•Section 4. “Board Components” describes the SAMA5D3 Xplained board components.

Contents

• Boards

- One SAMA5D3 Xplained board

•Cables

- One Micro-AB type USB cable

• A welcome letter

Related Items

• SAMA5D3 Series Data Sheet

• SAMA5D3 Xplained Getting Started

SAMA5D3

PLAINED

SAMA5D3 Xplained Evaluation Kit User’s Guide

SAMA5D3 XPLAINED

DS50002884A-page 2 2019 Microchip Technology Inc.

1. Evaluation Kit Specifications

1.1 Electrostatic Warning

1.2 Power Supply Warning

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 ATSAMA5D3-XPLD

WARNING

ESD-Sensitive Electronic Equipment!

The evaluation kit is shipped in a protective anti-static package. The board system must not be sub-

ject to high electrostatic potentials.

We strongly recommend using a grounding strap or similar ESD protective device when handling

the board in hostile ESD environments (offices with synthetic carpet, for example). Avoid touching

the component pins or any other metallic element on the board.

WARNING

Hardware Power Supply Limitation

Using a power adapter greater than 5Vcc (e.g. the 12Vcc power adapters from other kits such as

Arduino kits) may damage the board.

WARNING

Hardware Power Budget

Using the USB as the main power source (max. 500 mA) is acceptable only with the use of the on-

board peripherals and low-power LCD extension.

When external peripheral or add-on boards need to be powered, we recommend the use of an exter-

nal power adapter connected to a J2 DC Jack (can provide up to 1.2A on the 3.3V node).

Electrostatic

sensitive

device

2019 Microchip Technology Inc. DS50002884A-page 3

SAMA5D3 XPLAINED

2. Power-Up

Several power source options are available to power up the SAMA5D3 Xplained board.

The board can be:

• USB-powered through the USB Micro-AB connector (J6 connector - default configuration)

• Powered through an external AC-to-DC adapter connected via a 2.1 mm center-positive plug into the optional power jack of the

board. The recommended output voltage range of the power adapter is 5V at 2A.

• Powered through the Arduino shield

2.1 Power up the Board

Unpack the board, taking care to avoid electrostatic discharge. Simply connect the USB Micro-AB cable to the connector (J6).Then, con-

nect the other end of the cable to a free USB port of your PC.

2.2 Sample Code and Technical Support

After booting up the board, you can run sample code or your own application on the board. You can download sample code and get tech-

nical support from the Microchip website.

Linux®software and demos can be found on the website Linux4SAM.

WARNING

Unlike Arduino Uno boards, the SAMA5D3 Xplained board runs at 3.3V. The maximum voltage that

the I/O pins can tolerate is 3.3V. Providing higher voltages (e.g. 5V) to an I/O pin could damage the

board.

Table 2-1: Electrical Characteristics

Electrical Parameter Values

Input voltage 5 VCC

Maximum input voltage 6 VCC

Max DC 3.3V current available 1.2A

I/O Voltage 3.3V only

SAMA5D3 XPLAINED

DS50002884A-page 4 2019 Microchip Technology Inc.

3. Hardware Introduction

3.1 Introduction

The SAMA5D3 Xplained board is a fully-featured evaluation platform for Microchip SAMA5D3 series MPUs. It allows users to extensively

evaluate, prototype and create application-specific designs.

3.2 Equipment List

The SAMA5D3 Xplained board is built around the integration of a Cortex®-A5-based MPU (BGA 324 package) with external memory, dual

Ethernet physical layer transceiver, two SD/MMC interfaces, two host USB ports and one device USB port, one 24-bit RGB LCD interface

and one debug interface.

Seven headers, compatible with Arduino R3, are available for various shield connections.

2019 Microchip Technology Inc. DS50002884A-page 5

SAMA5D3 XPLAINED

3.3 Board features

Table 3-1: Board Specifications

Characteristics Specifications

PCB characteristics 125 x 75 x 20mm (10-layers)

Processor SAMA5D36 (324-ball BGA package) ARM Cortex-A5 Processor with ARM

v7-A Thumb2®instruction set, core frequency up to 536 MHz.

Processor clock sources 12-MHz crystal oscillator

32.768-kHz crystal oscillator

Memory 2 x 1Gb DDR2 (16M x 16 bits x 8 banks)

1 x 2Gb SLC NAND Flash (256M x 8 bits)

Optional on-board memory One Serial EEPROM SPI

One 1-Wire EEPROM

SD/MMC One 8-bit SD card connector

One optional 4-bit Micro-SD card connector

USB Two USB Hosts with power switch

One Micro-AB USB device

Display interface One LCD interface connector, LCD TFT Controller with overlay, alpha-

blending, rotation, scaling and color space conversion

Ethernet One Gigabit Ethernet PHY (GRMII 10/100/1000)

One Ethernet PHY (RMII 10/100)

Debug port One JTAG interface connector

One serial DBGU interface (3.3V level)

Expansion connectors

Arduino R3 compatible set of headers

The SAMA5D36 GPIO,TWI, SPI, USART, UART, Audio and ISI interfaces

are accessible through these headers.

Board supply voltage

5V from USB or power jack or Arduino shield

On-board power regulation is performed by a Power Management Unit

(PMU)

Battery On-board optional power Cap for CMOS backup

User interface Reset, wake-up and free user push button

One red user/power LED and one blue user LED

SAMA5D3 XPLAINED

DS50002884A-page 6 2019 Microchip Technology Inc.

4. Board Components

4.1 Board Overview

The full-featured SAMA5D3 Xplained board integrates several peripherals and interface connectors, as shown in Figure 4-1.

Figure 4-1: SAMA5D3 Xplained Board Overview

ATSAMA5D36

1401 A

XXXXXXXXXX

ARM

J15 PIO Expansion

1Gb DDR2 Memory

2Gb Nand Flash Memory

System Buttons

JTAG Interface

LCD Connector

Ethernet 10/100

GigaBit Ethernet

J18 PIO Expansion

Free User Push Button

ADC Inputs and CAN Interfaces

Debug Interface

SAMA5D36

Voltages and Reset Interface

ADC Inputs Expansion

Optional Supply Input

USB A Device

Supply Input

SPI Interface

J20 PIO Expansion

J19 PIO Expansion

USB Host Interfaces

ctor

2019 Microchip Technology Inc. DS50002884A-page 7

SAMA5D3 XPLAINED

The SAMA5D3 Xplained board is equipped with the interface connectors described in Table 4-1.

Table 4-1: SAMA5D3 Xplained Board Interface Connectors

Header Interfaces to

J2 Main power supply

J6 USB-A device. Supports USB device using a Micro-AB connector

J7 (upper) USB-B Host. Supports USB host using a type A connector

J7 (lower) USB-C™ Host. Supports USB host using a type A connector

J23 Serial DBGU 3.3V level

J24 JTAG, 20-pin IDC connector

J10 SD/MMC connector

J11 Micro-SD connector

J12 Gigabit Ethernet ETH0

J13 Ethernet ETH1

J22 Expansion connector with all LCD controller signals for display module connection (QTouch®, TFT LCD

display with Touch Screen and backlight

C41 Optional SuperCap

J14–J21 Expansion connectors with Arduino R3 compatible PIO signals

– Various test points located on the board

SAMA5D3 XPLAINED

DS50002884A-page 8 2019 Microchip Technology Inc.

4.2 Function Blocks

Figure 4-2: Evaluation Kit Architecture

4.2.1 Processor

The SAMA5D3 Xplained board is built around the SAMA5D36, a Cortex-A5 application processor which combines high-performance com-

puting device with low-power consumption and a wide range of communication peripherals. It features a combination of user interface

functionalities and high data rate IOs, including LCD controller, touchscreen, camera interface, Gigabit and 10/100 Ethernet ports, high-

speed USB and SDIO.

The ARM Cortex-A5 supports the latest generation of DDR2 and NAND Flash memory interfaces for program and data storage. An internal

166-MHz multi-layer bus architecture associated with 24 DMA channels and two 64-Kbyte SRAM blocks, sustains the high bandwidth

required by the processor and the high-speed peripherals.

4.2.2 Clock Circuitry

The SAMA5D3 Xplained evaluation board features four clock sources:

• Two clocks are alternatives for the SAMA5D3 series processor main clock

• Two crystal oscillators are used for the GETH and Ethernet MII/RMII chip

Table 4-2: Main Components Associated with the Clock Systems

Quantity Description Component Assignment

1 Crystal for internal clock, 12 MHz Y1

1 Crystal for RTC clock, 32.768 kHz Y2

1 Oscillator for ethernet clock RGMII, 25 MHz Y3

1 Oscillator for ethernet clock RMII, 25 MHz Y4

JTAG

DBGU

JTAG & DBGU

SERIAL

DATA

Micro SD

CARD

10/100/1000

FAST ETHERNET

10/100

ETHERNET

CARD

LCD

Connector FLASH ETH0 ETH1

PIO A,...EPIO A,...E

Single

PMU

Solution

5V INPUT

SAMA5D36

CORTEX®-A5 PROCESSOR

2Gb

DDR2

SDRAM

2Gb

NAND

FLASH

USB

DEVICE

USB

Host

ANALOG Reference

VBAT

USER

LEDS PIO

Expansion Headers

Power rails

USB A,B,C

Reset

Force PwrOn

Push

Buttons

EBI

5V & 3V3

(Up to 4Gb)

2019 Microchip Technology Inc. DS50002884A-page 9

SAMA5D3 XPLAINED

4.2.3 Power Supplies

The on-board power supply generation is based on the Active-Semi®Power Management Unit (PMU) featuring a 3-channel (3.3V / 1.8V

/1.2V or 1.0V) topology. For maximum efficiency, these supply channels are generated by three integrated step-down converters.

In addition to these 3 DCDC channels, 4 LDO channels with low noise and high PSRR performance are available for the application. These

channels are disabled at startup by default and can be turned on and adjusted under software control through an I²C link. They are also

used to supply the 2.5V VDDFUSE and the 3.3V VDDANA power inputs of the processor.

The power supply sequencing of the three primary channels is controlled by the PMU itself in full compliance with the SAMAD3 require-

ments. The turn-on sequence is: 3.3V first, then 1.8V and finally 1.2V.

Table 4-3 summarizes the power specifications.

WARNING

There is a known error on the ACT8865 I²C implementation. The port must be shut off after config-

uration or problems may occur with devices using the same I²C channel, e.g., TM43xx LCD display.

Refer to the ACT8865 data sheet at http://www.active-semi.com/ for more details.

WARNING

This evaluation kit was equipped with an engineering version of ACT8865 PMIC known as

ACT8865QI303-T. The singularity of this engineering version is that OUT4 and OUT5 outputs, nor-

mally enabled at power-up, are disabled at power-up. Consequently, VDDANA and VDDFUSE

power inputs of the processor are OFF when the external reset pin (NRST) is released. They must

therefore be turned on by software in the very first execution steps of the application. In particular,

VDDFUSE is needed to switch SAMA5D3 devices in Secure mode.

The engineering version ACT8865QI303-T of the active semi PMIC is end-of-life (EOL) and replaced

by ACT8865QI305-T devices that have OUT4 and OUT5 enabled by default at power-up. Refer to

the following application note:

https://active-semi.com/wp-content/uploads/ActiveSemi_-ACT8865QI305-

T_versus_ACT8865QI303-T.pdf

Table 4-3: Supply Group Configuration

Nominal Name Power Domains Power Source

3.0V VDDBU

The slow clock oscillator, the internal

32K RC, the internal 12 MHz RC and a part

of the system controller

Optional on-board battery

3.3V VDDIOP0 A part of peripheral I/O lines

PMU

3.3V VDDIOP1 A part of peripheral I/O lines

3.3V VDDUTMII The three USB interfaces

3.3V VDDOSC The main oscillator cells

3.3V VDDANA The analog-to-digital converter

1.2V VDDCORE The core, including the processor, the

embedded memories and the peripherals

SAMA5D3 XPLAINED

DS50002884A-page 10 2019 Microchip Technology Inc.

Note: Jumper footprints are available on-board to measure power consumption on main power lines. By default, the jumpers are not

implemented. They are short-circuited by a thin PCB wire. To use this functionality, open the short circuit and mount a 2-pin

jumper.

Figure 4-3: Board Power Management Schematic

1.2V VDDUTMIC The USB UTMI + core

PMU

1.2V VDDPLLA The PLLA cell

1.8V VDDIODDR DDR2 interface I/O lines

1.8V VDDIOM NAND, NOR Flash and SMC interface I/O

lines

3.0V to

3.3V ADVREF ADC reference voltage J15 header

2.5V VDDFUSE Fuse box for programming PMU

Table 4-3: Supply Group Configuration (Continued)

Nominal Name Power Domains Power Source

BP2

BP1

5V_MAIN

VDDCORE

VDDIOP1

VDDIOP0

VDDANA

VDDPLLA

VDDOSC

VDDIODDR

VDDIOM

AVDDL_PLL

DVDDL

AVDDL

FUSE_2V5

5V_MAIN

3V3

VDDUTMIC

3V3

TWCK_PMIC[7]

TWD_PMIC[7]

NRST

[5,9,10,11]

SHDN[5]

PC31

[7]

WKUP

[5]

PE30

[7]

(1V2)

(1V8)

(3V3)

(2V5)

RESETWAKUP or

Force Power ON

Auto

PWRON

(option)

PC27

PC26

C10

100nF

C10

100nF

L9 2.2uHL9 2.2uH

R14

50K

R14

50K

C21

2.2uF

C21

2.2uF

BP2BP2

1uF

C13

10uF

C13

10uF

R16 0RR16 0R

C23

2.2uF

C23

2.2uF

R17 2R2R17 2R2

C20

100nF

C20

100nF

MN1 ACT8865MN1 ACT8865

GNDP1

GNDA

INL45 5

VP1

INL67 6

GNDP2

VP2

GNDP3

EXPAD

VP3

NC2

VDDREF

nRST0

nIRQ

nPBSTAT

VSEL

NC1

PWRHLD

PWREN

SCL

SDA

REFBP

nPBIN

SW1 30

OUT1 1

OUT2 24

SW2 27

SW3 15

OUT3 19

OUT4 3

OUT5 4

OUT6 7

OUT7 8

4.7uF

JP1 DNP(JUMPER)

IRLML2502

1uF

R19

100K 1%

R19

100K 1%

4.7uF

R15

L11

180ohm at 100MHz

L11

180ohm at 100MHz

1 2

180ohm at 100MHz

C18

47nF

C18

47nF

C22

2.2uF

C22

2.2uF

JP3 DNP(JUMPER)JP3 DNP(JUMPER)

R11 0RR11 0R

TP2

SMD

TP2

SMD

C26

4.7uF

C26

4.7uF

1uF

1.5K 1%

1.5K 1% L5 2.2uH

L5 2.2uH

JP4 DNP(JUMPER)

C25

100nF

C25

100nF

10uH60mA

4.7uF

JP2 DNP(JUMPER)

1.5K 1%

C11

4.7uF

C11

4.7uF

R5 2R2R5 2R2

10K

C17

100nF

C17

100nF

10uF

L7 2.2uHL7 2.2uH

C19

100nF

C19

100nF

L12

10uH60mA

L12

10uH60mA

4.7uF

R186 0RR186 0R

180ohm at 100MHz

1 2

180ohm at 100MHz

1 2

R12 49.9K

L10

180ohm at 100MHz

L10

180ohm at 100MHz

1 2

C15

10uF

C15

10uF

TP1

SMD

TP1

SMD

C14

100nF

C14

100nF

R18 1KR18 1K

C130

10nF

C130

10nF

C16

10uF

C16

10uF

R9 DNP(0R)R9 DNP(0R)

C24

2.2uF

C24

2.2uF

R13 0RR13 0R

R10 2R2R10 2R2

10uH60mA

180ohm at 100MHz

1 2

BP1BP1

C12

10uF

C12

10uF

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