Phytec Phyboard wega-am335x User manual

phyBOARD WEGA-AM335x

Single Board Computer - ardware Manual

Product No. : PCL-051/PBA-CD-02

SOM PCB No. : 1397.0

PCB PCB No. : 1405.0

Edition : March, 2014

In this manua descriptions are for copyrighted products that are not exp icit y indicated as such. The

absence of the trademark (TM) and copyright (©) symbo s does not imp y that a product is not

protected. Additiona y, registered patents and trademarks are simi ar y not exp icit y indicated in this

manua .

The information in this document has been carefu y checked and is be ieved to be entire y re iab e.

However, PHYTEC Embedded Pvt. Ltd assumes no responsibi ity for any inaccuracies. PHYTEC

Embedded Pvt. Ltd neither gives any guarantee nor accepts any iabi ity whatsoever for consequentia

damages resu ting from the use of this manua or its associated product. PHYTEC Embedded Pvt. Ltd

reserves the right to a ter the information contained herein without prior notification and accepts no

responsibi ity for any damages which might resu t.

Additiona y, PHYTEC Embedded Pvt. Ltd offers no guarantee nor accepts any iabi ity for damages

arising from the improper usage or improper insta ation of the hardware or software. PHYTEC

Embedded Pvt. Ltd further reserves the right to a ter the ayout and/or design of the hardware without

prior notification and accepts no iabi ity for doing so.

Rights - inc uding those of trans ation, reprint, broadcast, photomechanica or simi ar reproduction and

storage or processing in computer systems, in who e or in part - are reserved. No reproduction may

occur without the express written consent from PHYTEC Embedded Pvt. Ltd.

India Europe North America

Address: PHYTEC Embedded Pvt.

Ltd.

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Main, Opp. Po ice Station

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Banga ore -560095

India

PHYTEC Techno ogies

Ho ding AG

Robert-Koch-Str. 39

55129 Mainz GERMANY

PHYTEC America LLC

203 Parfitt Way SW,

Suite G100 Bainbridge

Is and, WA 98110 USA

Ordering

Information:

+91-80-40867046

Sa [email protected]

+49 (800) 0749832

[email protected]

1 (800) 278-9913

sa [email protected]

Web Site: http://www.phytec.in http://www.phytec.de http://www.phytec.com

Table of Contents

TABLE OF CONTENTS..........................................................................................................................................................................3

CONVENTIONS, ABBREVIATIONS, AND ACRONYMS ...............................................................................................................4

CONVENTIONS ..................................................................................................................................................................................4

TABLE-1. ABBREVIATIONS AND ACRONYMS USED IN T IS MANUAL........................................................................4

.......................................................................................................................................................................................................................

TABLE-2. ABBREVIATIONS AND ACRONYMS USED IN T IS MANUAL ........................................................................6

TABLE-3. TYPES OF SIGNALS.....................................................................................................................................................6

PRODUCT C ANGE MANAGEMENT ............................................................................................................................................8

1. INTRODUCTION ...............................................................................................................................................................................8

1.1 ARDWARE OVERVIEW:.....................................................................................................................................................8

2. PCL-051/P YCORE-AM335X SYSTEM ON MODULE ...........................................................................................................11

3. ACCESSING T E P YBOARD-WEGA INTERFACES:...........................................................................................................12

4. LEDS:..................................................................................................................................................................................................14

5. FUNCTIONAL COMPONENTS ON T E P YBOARD-WEGA BOARD:..............................................................................14

........................................................................................................................................................................................

......................................................................................................................................................................................................................

6. SYSTEM LEVEL ARDWARE INFORMATION.......................................................................................................................22

7. EXPANSION CONNECTOR:..........................................................................................................................................................24

8. TEC NICAL SPECIFICATIONS...................................................................................................................................................26

9. REVISION ISTORY......................................................................................................................................................................26

10. PLACMENT DIAGRAMS............................................................................................................................................................27

Conventions, Abbreviations, and Acronyms

Conventions

The conventions used in this manua are as fo ows:

• Signa s that are preceded by a “/” character are designated as active ow signa s. Their active state is

when they are driven ow, or are driving ow;

for Examp e: /RESET.

• Tab es show the defau t setting or jumper position in bo d, text.

• References made to the phyCORE-Connector a ways refer to the high density SAMTEC connectors

on the underside of the phyBOARD-WEGA-AM335x System on Modu e.

Abbreviations and Acronyms

Many acronyms and abbreviations are used throughout this manua . Use the tab e be ow to navigate

unfami iar terms used in this document.

Table-1. Abbreviations and Acronyms Used in This Manual

Abbreviation Definition

BSP

Board Support Package (Software de ivered with the

Deve opment Kit inc uding an operating system (Windows or

Linux) preinsta ed on the modu e and Deve opment Too s).

CB Carrier Board; used in reference to the 1404.0

DFF D f ip-f op

EMB Externa memory bus

EMI E ectromagnetic Interference

GPI Genera purpose input

GPIO Genera purpose input and output

GPO Genera purpose output

IRAM Interna RAM; the interna static RAM on the TI AM335x

processor

JSo der jumper; these types of jumpers require so der equipment

to remove and p ace

JP So der ess jumper; these types of jumpers can be removed and

p aced by hand with no specia too s

PCB Printed circuit board

PDI PHYTEC Disp ay Interface; defined to connect PHYTEC

disp ay adapter boards or custom adapters

PEB PHYTEC Extension Board

PMIC Power Management Integrated Circuit

PoE Power over Ethernet

PoP Package on Package

RTC Rea -time c ock

SMT Surface mount techno ogy

Table-2. Abbreviations and Acronyms Used in This Manual

Abbreviation Definition

SOM System on Modu e; used in reference to the PCL-051/WEGA Board

System on Modu e

TRM Technica Reference Manua

VBAT SOM battery supp y input

Different types of signa s are brought out at the phyCORE-Connector. The fo owing tab e ists the

abbreviations used to specify the type of a signa .

Table-3. Types of Signals

Type of Signal Description Abbreviation

Power Supp y vo tage PWR

Ref-Vo tage Reference vo tage REF

USB-Power USB vo tage USB

Input Digita input IN

Output Digita output OUT

Input with pu -up Input with pu -up (jumper or

open-co ector output)

IPU

Input/output Bidirectiona input/output IO

5V Input with

pu -down

5V to erant input with pu -down 5V_PD

LVDS Differentia ine pairs 100 Ohm

LVDS eve

LVDS

Differentia 90

Ohm

Differentia ine pairs 90 Ohm DIFF90

Differentia 100

Ohm

Differentia ine pairs 100 Ohm DIFF100

Ana og Ana og input or output Ana og

Preface

This phyBOARD-WEGA-AM335x Board Hardware Manua describes the System on Modu e's design

and functions. Precise specifications for the TI AM335x processor can be found in the processor datasheet

and/or user’s manua .

In this hardware manua and in the schematics, active ow signa s are denoted by a "/" preceding the signa

name, for examp e: /RD. A "0" represents ogic-zero or ow- eve signa , whi e a "1" represents a ogic one

or high- eve signa .

Declaration of Electro Magnetic Conformity of the phyBOARD-WEGA-AM335x

PHYTEC System on Modu es (SOMs) are designed for insta ation in e ectrica app iances or, combined

with the PHYTEC Carrier Board, can be used as dedicated Eva uation Boards (for use as a test and

prototype p atform for hardware/software deve opment) in aboratory environments.

CAUTION:

PHYTEC products acking protective enc osures are subject to damage by ESD and,

hence, may on y be unpacked, hand ed or operated in environments in which

sufficient precautionary measures have been taken in respect to ESD-dangers. It is

a so necessary that on y appropriate y trained personne (such as e ectricians,

technicians and engineers) hand e and/or operate these products. Moreover, PHYTEC

products shou d not be operated without protection circuitry if connections to the

product's pin header rows are onger than 3 mm.

PHYTEC products fu fi the norms of the European Union's Directive for E ectro Magnetic Conformity

on y in accordance to the descriptions and ru es of usage indicated in this hardware manua (particu ar y in

respect to the pin header row connectors, power connector and seria interface to a host-PC).

Imp ementation of PHYTEC products into target devices, as we as user

modifications and extensions of PHYTEC products, is subject to renewed

estab ishment of conformity to, and certification of, E ectro Magnetic Directives.

Users shou d ensure conformance fo owing any modifications to the products as we

as imp ementation of the products into target systems.

The phyBOARD-WEGA-AM335x Board is one of a series of PHYTEC System on Modu es that can be

popu ated with different contro ers and, hence, offers various functions and configurations. PHYTEC

supports a variety of 8/16 and 32-bit contro ers in two ways:

1. As the basis for Rapid Deve opment Kits which serve as a reference and Eva uation p atform.

2. As insert-ready, fu y functiona phyCORE OEM modu es, which can be

Embedded direct y into the user's periphera hardware design.

Imp ementation of an OEM-ab e SOM subassemb y as the "core" of your embedded design a ows you

to focus on hardware periphera s and firmware without expending resources to "re-invent" microcontro er

circuitry. Furthermore, much of the va ue of the phyCORE modu e ies in its ayout and test.

“Production-ready Board Support Packages (BSPs)” and Design Services for our hardware further reduce

deve opment time and expenses. Take advantage of PHYTEC products to shorten time-to-market, reduce

deve opment costs, and avoid substantia design issues and risks.

For more information refer to: http://www.phytec.in/services/hardware.html

Product Change Management

In addition to our HW and SW offerings, the buyer wi receive a free obso escence maintenance

service for the HW provided when purchasing a PHYTEC SOM.

Our Product Change Management Team of deve opers is continuous y processing a incoming PCN's

(Product Change Notifications) from vendors and distributors concerning parts which are being used in

our products. Possib e impacts to the functiona ity of our products, due to changes of functiona ity or

obso esce of a certain part, are eva uated in order to take the right measures in purchasing or within our

HW/SW design.

Our genera phi osophy here is: We never discontinue a product as ong as there is demand for it.

Therefore a set of methods has been estab ished to fu fi our phi osophy:

Avoidance strategies

• Avoid changes by eva uating ongevity of a part during design-in phase.

• Ensure avai abi ity of equiva ent second source parts.

• Maintain c ose contact with part vendors for awareness of roadmap strategies.

Change management in case of functional changes

• Avoid impacts on Product functiona ity by choosing equiva ent rep acement parts.

• Avoid impacts on Product functiona ity by compensating changes through HW redesign or backward

compatibi ity

SW maintenance

• Provide ear y change notifications concerning functiona re evant changes of our Products.

Change management in rare event of an obsolete and non replaceable part

• Ensure ong term avai abi ity by stocking parts through ast time buy management, according to

product forecasts.

• Offer ong term frame contract to customers.

We refrain from providing detai ed, part-specific information within this manua , which is subject to

changes, due to ongoing part maintenance for our products.

1. Introduction

1.1 ardware Overview:

The WEGA Board for phyCORE-AM335x is a ow-cost, feature-rich software deve opment p atform

supporting the TI AM335x processor fami ies. At the core of the phyBOARD-WEGA-AM335x is the

PCL-051/phyCORE-AM335x System On Modu e (SOM) in a direct so der form factor, containing the

AM335x processor, SDRAM, NAND F ash, power regu ation, supervision, transceivers and other core

functions required to support the phyBOARD-WEGA-AM335x. Surrounding the SOM is the PBA-CD-

02/ phyBOARD-WEGA-AM335x Carrier, adding power input, buttons, connectors, signa breakout

amongst other features.

The PCL-051 System On Modu e is a connector- ess, BGA sty e variant of the PCM-051/phyCORE-

AM335x SOM. Un ike traditiona PHYTEC SOM products that support high density connectors, the PCL-

051 SOM is direct y so dered down to its Carrier Board using PHYTEC's Direct So der Connect

techno ogy. This so ution offers an u tra- ow cost Sing e Board Computer for the AM335x processor,

whi e maintaining most of the advantages of the SOM concept.

Adding the phyCORE-AM335x SOM into your own design is as simp e as ordering the connectored

version (PCM-051) and making use of our phyBOARD-WEGA-AM335x Carrier Board (PBA-CD-02), or

RDK Carrier Board (PCM-953) reference schematics. A summary of the phyBOARD-WEGA-AM335x

features, a ong with a b ock diagram are presented be ow.

1.2 Features of the

phyBOARD-Wega-AM335x:

•The phyBOARD-Wega-AM335x supports the fo owing features

•PHYTEC’s phyCORE-AM335x SOM with Direct So der Connect (DSC)

•Pico ITX standard dimensions (100mm×72mm)

Boot from MMC or NAND

F ash Max. 1 GHz core

c ock frequency.

•Three different power supp y options (5V on y with 3.5mm comb icon or micro USB connector,

externa power modu e e.g. 12V-24V input vo tage) Two RJ45 jacks for 10/100 Mbps Ethernet

•One USB OTG interface avai ab e at an USB Micro-AB connector at the back side one secure

Digita /Mu ti Media memory card interface brought out to a Micro-SD connector at the back side

•CAN interface at 5x2 pin header 2.54mm

•Audio codec with stereo Line in and Line out (3x2 pin header 2.54mm) and mono speaker (2-po e

Mo ex)

•RS-232 transceiver supporting UART1 inc . Handshake signa s with data rates of up to 1 Mbps (5x2

pin header 2.54mm)

•Reset – Button

•Audio/Video (A/V)connectors

•Expansion connector

•

Backup battery supp y for RTC with Go d cap ( asts approx.

17 ½

days)

phyBOARD Wega AM335x Block Diagram.

phyBOARD Wega AM335x

1.4 View of the

phyBOARD-Wega-AM335x:

2. PCL-051/phyCORE-AM335x System on Module

This chapter gives a brief introduction to the PCL-051/phyCORE-AM335x System on Modu e (SOM),

high ighting its benefits and features. For more detai ed information, p ease refer to the Hardware Manua

for the modu ar, connectored version of the SOM (PCM-051) by c icking here.

The phyCORE-AM335x be ongs to PHYTEC’s phyCORE System on Modu e (SOM) fami y. The

phyCORE SOMs represent the continuous deve opment of PHYTEC SOM techno ogy. Like its mini-,

micro-, and nano MODULE predecessors, the phyCORE boards integrate a core e ements of a

microcontro er system on a sub miniature board and are designed in a manner that ensures their easy

expansion and embedding in periphera hardware deve opments.

As independent research indicates that approximate y 70% of a EMI (E ectro Magnetic Interference)

prob ems stem from insufficient supp y vo tage grounding of e ectronic components in high frequency

environments, the phyCORE board design features an increased pin package. The increased pin package

a ows dedication of approximate y 20% of a connector pins on the phyCORE boards to ground. This

improves EMI and EMC characteristics and makes it easier to design comp ex app ications meeting EMI

and EMC guide ines using phyCORE boards even in high noise environments.

phyCORE boards achieve their sma size through modern SMD techno ogy and mu ti- ayer design. In

accordance with the comp exity of the modu e, 0402-packaged SMD components and aser-dri ed

Microwave are used on the boards, providing phyCORE users with access to this cutting edge

miniaturization techno ogy for integration into their own design.

The PCM-051, connector version of the phyCORE-AM335x is a sub-miniature (44 mm x 50 mm)

insert-ready SOM popu ated with AM335x processor. Its universa design enab es its insertion into a wide

range of embedded app ications. A processor signa s and ports extend from the processor to high-density

pitch (0.5 mm) connectors a igning two sides of the board. This a ows the SOM to be p ugged ike a "big

chip" into a target app ication.

The PCL-051, connector ess version of the phyCORE-AM335x popu ating the phyBOARD-WEGA-

AM335x is identica to the connectored version, with the exception of the connection interface. Instead of

two high density connectors a igning the edges of the board, the PCL-051 so ders direct y down to its

Carrier Board with a BGA sty e footprint.

Precise specifications for the processor popu ating the board can be found in the app icab e processor

user's manua and datasheet. The descriptions in this manua are based on the AM335x processor. No

description of compatib e processor derivative functions is inc uded; as such functions are not re evant for

the basic functioning of the WEGA Board.

3. Accessing the phyBOARD-Wega Interfaces:

PHYTEC phyBOARD-Wega is fu y equipped with a mechanica and

e ectrica

components

necessary for the speedy and secure start-up and

subsequent

communication to and

programming of app icab e PHYTEC System on Modu e

(SOM)

modu es. phyBOARD-Wega Boards

are designed for eva uation, testing

and

prototyping of PHYTEC System on Modu e in

aboratory environments prior to

their

use in customer designed

app ications.

3.1 Concept of the phy

BO

ARD-W

e

ga:

The phyBOARD-Wega provides a f exib e deve opment p atform enab ing quick

and

easy start-

up and subsequent programming of its so dered phyCORE-AM335x

System

on Modu e. The carrier

board design a ows easy connection of additiona

extension

boards featuring various functions that

support fast and convenient prototyping

and

software eva uation. The carrier board is compatib e with

phyCORE-AM335x

on y.

This modu ar deve opment p atform concept inc udes the fo owing

components:

The phyCORE-AM335x modu e popu ated by defau t with the AM3354 processor and a app icab e

SOM circuitry such as DDR SDRAM, F ash, PHYs, and transceivers to name a few.

The phyBOARD-Wega which offers a essentia components and connectors for start-up inc uding: A

power socket which enab es connection to an externa power adapter, interface connectors such as DB-9,

USB and Ethernet a owing for use of the SOM's interfaces with standard cab e.

The fo owing sections contain specific information re evant to the operation of

the

phyCORE-

AM335x mounted on the phyBOARD-Wega Carrier

Board.

3.2

Overview of the phyBOARD-Wega Peripherals:

The phyBOARD-Wega is depicted in

above section

. It features many different interfaces

and

is

equipped with the components as isted in

above section

. For a more

detai ed

description of each

periphera refer to the appropriate chapter isted in the

app icab e

high ights the ocation of each

periphera for easy

identification.

3.3 Connectors and Pin

eader:

This ists a avai ab e connectors on the phyBOARD-Wega.

Reference

Designator Description

X11

Secure Digita / Mu ti Media Card

(Micro-s ot)

X15

USB Host connector (USB 2.0

Standard-A)

X16

Ethernet 0 connector (RJ45 with speed and ink

LED)

X17

Ethernet 1 connector (RJ45 with speed and ink

LED)

X42

USB On-The-Go connector (USB

Micro-AB)

X55

Mono Speaker output (2-po e

Mo ex)

X65

CAN connector (5×2 pin

header)

X66

RS-232 with RTS and CTS (UART1 5×2 pin

header)

X67

Power supp y 5 V on y (via 6-po e WAGO ma e header,

or

2-po e PHOENIX base

strip)

X69

Expansion connector (2×30 socket

connector)

X70

A/V connector #1 (2×20 socket

connector)

X71

A/V connector #2 (2×8 socket

connector)

X72

Optiona 5 V power supp y via USB Micro-AB

connector

X73

Stereo Line Out and Line In

connector

(2×3 pin

header)

N

o t e

:

Ensure that a modu e connections are not to exceed their expressed maximum

vo tage

or current.

Maximum signa input va ues are indicated in the corresponding

contro er

User's Manua /Data Sheets.

As damage from improper connections varies according

to

use and app ication, it is the user‘s

responsibi ity to take appropriate safety measures

to

ensure that the modu e connections are protected

from over oading through

connected periphera s.

4.

LEDs:

The phyBOARD-Wega is popu ated with three LEDs to indicate the status of the

USB

VBUS

vo tages, as we as of the power supp y

vo tage.

shows the ocation of the LEDs. Their function is isted in the tab e

be ow:

LED Colour Description

D7 green

Indicates presence of VBUS1 at the USB Host

interface

D8 green

Indicates presence of VBUS0 at the USB OTG

interface

D5 red

3.3 V vo tage generation of the

phyBOARD-Wega

5. Functional Components on the phyBOARD-WEGA

B

oa

r

d:

This section describes the functiona components of the phyBOARD-Wega.

Each

subsection detai s

a particu ar connector/interface and associated jumpers

for

configuring that

interface.

5.1 Power

Supply

Caution:

Do not change modu es or jumper settings whi e the phyBOARD-Wega is

supp ied

With

power.

Power Connectors (X67 and

X72)

The phyBOARD-Wega is avai ab e with three different power supp y

connectors.

Depending on your

order you wi find one of the fo owing connectors on your

SBC:

1. A 2-po e PHOENIX base strip 3.5 mm connector suitab e for a sing e 5 V

supp y

vo tage,

or

2. AN USB Micro-AB connector to connect a standard 5 V USB power supp y,

or

3. A 6-po e WAGO ma e header to attach the Power Modu e for

phyBOARD-Wega

(PEB-POW-01)

which provides connectivity for 12 V – 24

V

The required current oad capacity for a power supp y so utions depends on the specific

configuration of the phyCORE mounted on the phyBOARD-Wega the particu ar interfaces enab ed

whi e executing software as we as whether an optiona expansion board is connected to the carrier board.

A 5 V adapter with a minimum Supp y of 1.5 A is recommended.

PHOENIX base strip WAGO ma e header

6-po e

5.1.1 P OENIX 2-pole Base

Strip

The permissib e input vo tage is +5 V DC if your SBC is equipped with a

2-po e

PHOENIX

connector.

The fo owing tab e show the pin

assignment.

Pin Signal Description

1 VCC5V_IN

+5V power

supp y

2 GND Ground

Assignment

of

the 2-pole

P

H

O

N

I

X

C

onn

e

c

to

r

atX67

5.1.2 USB

Micro AB

If your board provides an USB Micro-AB fema e connector at the upper side of

the

board a

standard USB Micro power supp y with +5 V DC can be used to supp y

the phyBOARD-Wega.

Caution!

Do not confuse the USB Micro connector on the upper side of the board with the one

on

the back side

of the board which provides USB OTG connectivity. The USB

Micro

connector on the upper side is

exc usive y used for power supp y and has no other

USB functiona ity!

5.1.3. WAGO 6-pole Male

eader

If a WAGO 6-po e ma e header is mounted on your board,your board is prepared to connect

to a phyBOARD-Wega Power

Modu e

(PEB-POW-01), or a custom power supp y circuitry. The

mating connector from

WAGO has the EAN

4045454120610.

Pin Signal Description

1

VCC5V_IN

+5 V power

supp y

2GND Ground

3VCC3V3_PMOD

+3.3 V power

supp y

4VCC_BL

Back ight power

supp y

5PMOD_PWRGOOD

Power good signa (connected to

reset

nRESET_IN)

6PMOD_PWRFAIL

Power fai

signa

Assignment

of

the 6-pole WAGO

C

onn

e

c

to

r

at X67

5.2 Power LED

D58

The red LED D58 right next to the power connector indicates

the

presence of the 3.3 V

supp y vo tage generated from the 5 V input

vo tage.

5.3 VBAT and

RTC

On the phyBOARD-Wega the interna RTC of the AM335x is used for rea -time

or

time-driven

app ications. To backup the RTC on the modu e, a go d cap (C339) is

p aced on the phyBOARD-

Wega. This vo tage source supp ies the backup vo tage

domain VBAT of the AM335x which

supp ies the RTC and some critica

registers

when the primary system power, VCC5V_IN, is

removed. The backup supp y

asts

approximate y.

5.4 RS-232 Connectivity

(X66)

RS-232

I

n

te

r

fa

c

e

C

onn

e

c

to

r

X66

Pin header connector X66 ocated next to the USB host connector provides the UART1

signa s of the AM335x at RS-232 eve . The seria interface

is

intended to be used as data termina

equipment (DTE) and a ows for a

5-wire

connection inc uding the signa s RTS and CTS for

hardware f ow contro . Be ow tab e shows the signa mapping of the RS-232 eve signa s at connector

X66.

Pin Signal Pin Signal

1NC 2NC

3UART1_RXD_RS232 4UART1_RTS_RS232

5UART1_TXD_RS232 6UART1_CTS_RS232

7NC 8NC

9GND 10 NC

Assignment

of

RS-232

C

onn

e

c

to

r

X66

An adapter cab e is inc uded in the phyBOARD-Wega-Am335x Kit to faci itate the

use

of the

UART1 interface. The fo owing figure shows the signa mapping of the

adapter.

5.5 Ethernet Connectivity (X16 and

X17)

The Ethernet interfaces of the phyBOARD-Wega are accessib e at two RJ45

connectors

(X16 and

X17) on the

board.

th

e

r

n

e

t

I

n

te

r

fa

c

e

s

at

C

onn

e

c

to

r

s

X16 and

X17

Both Ethernet interfaces are configured as 10/100Base-T networks. The LEDs for

LINK (green)

and SPEED (ye ow) indication are integrated in the connector.

Both

LAN8710AI Ethernet transceivers

support HP Auto-MDIX techno ogy, e iminating

the

need for the consideration of a direct connect

LAN cab e, or a cross-over path

cab e.

They detect the TX and RX pins of the connected device and

automatica y

configure

the PHY TX and RX pins

according y.

5.6 USB Connectivity (X15 and

X42)

The phyBOARD-Wega provides one USB Host and one USB OTG

interface.

USB0 is accessib e at connector X42 (USB Micro-AB) ocated at the back side of

the

phyBOARD-

Wega. It is configured as USB OTG. USB OTG devices are capab e

to

initiate a session, contro the

connection and exchange host and periphera

ro es

between each other. This interface is comp iant

with USB revision

2.0.

USB1 is accessib e on the top at connector X15 (USB Standard-A) and is configured

as

USB

Host.

Components supporting the USB Interfaces

LED D8 disp ays the status of USB0_VBUS and LED D7 the status of

USB1_VBUS.

For ater

expansion boards the USB1 interface can be routed to the expansion

connector

(X69) by popu ating J72

and J73

(2+3).

5.7 Audio Interface (X55 and

X73)

The audio interface provides a method of exp oring AM335x’s audio capabi ities.

The

phyBOARD-

Wega is popu ated with an audio codec at U35. The audio codec

is

connected to the AM335x’s

McASP0 interface to support stereo ine input and

stereo

ine output at connector X73. In addition to

that the phyBOARD-Wega has one

direct

mono speaker output (2 × 1 W) at the Mo ex connector

X55.

X55: Speaker

Audio

I

n

te

r

fa

c

e

s

at

C

onn

e

c

to

r

s

X55 and

X73

X73:LIN IN LIN OUT

Pin assignment at

X73

Pin Signal Pin Signal

1LINE_IN_L 2LINE_IN_R

3AGND 4AGND

5LINE_OUT_L 6LINE_OUT_R

Pin assignment at

X55

Pin Signal Description

1SPOP

Class-D positive differential

output

2SPOM

Class-D negative differential

output

For additiona audio app ications the McASP0 interface of the AM335x inc uding

the

signa s

X_MCASP0_AHCLKX, X_I2S_CLK, X_I2S_FRM, X_I2S_ADC

and

X_I2S_DAC are routed to the

A/V connector.

5.8 CAN Connectivity

The CAN1 interface of the phyBOARD-Wega-AM335x is accessib e at connector

X65

(2×5 2.54 mm pin

header).

Jumper JP3 can be insta ed to add a 120 Ohm termination resistor across the CAN

data

ines if

needed.

Components

s

uppo

r

tin

g

the CAN

I

n

te

r

fa

c

e

Be ow tab e shows the signa mapping of the CAN1 signa s at connector

X65.

Pin Signal Pin Signal

1NC 2GND

3X_CANL 4X_CAN

5GND 6NC

7NC 8NC

9Shield 10 NC

A

ss

i

gn

m

e

n

t

of

CAN

C

onn

e

c

to

r

X65

An adapter cab e is inc uded in the phyBOARD-Wega-Am335x Kit to faci itate the

use

of the CAN

interface. The fo owing figure shows the signa mapping of the

adapter.

5.9 Secure Digital Memory Card/ Multimedia Card

(X11)

SD

/ MM Card

in

te

r

fa

c

e

at

c

onn

e

c

to

r

X11

he phyBOARD-Wega provides a standard micro SDHC card s ot at X11 for connection to

SD/MMC interface cards. It a ows easy and convenient connection to periphera devices ike SD- and

MMC cards. Power to the SD interface is supp ied by inserting the appropriate card into the

SD/MMC connector, who features a

card

detection, a ock mechanism and a smooth extraction

function by Push-in /-out of

card.

“The AM335x processor on the phyBAORD-Wega can boot from this interface.”

Phytec phyBOARD WEGA-AM335x User manual

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