Phytec phyBOARD Regor AM335x User guide

A product of a PHYTEC Technology Holding company
phyBOARD®-Regor AM335x
Application Guide
Document No.: L-823e_2
SBC Prod. No.: PB-01802-xxx
CB PCB No.: 1447.3
SOM PCB No.: 1358.4
Edition: June 2018

phyBOARD-Regor AM335x [PB-01802-xxx]
PHYTEC Messtechnik GmbH 2018 L-823e_2
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However, PHYTEC Messtechnik GmbH assumes no responsibility for any inaccuracies. PHYTEC Messtechnik
GmbH neither gives any guarantee nor accepts any liability whatsoever for consequential damages
resulting from the use of this manual or its associated product. PHYTEC Messtechnik GmbH reserves the
right to alter the information contained herein without prior notification and accepts no responsibility for
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from the improper usage or improper installation of the hardware or software. PHYTEC Messtechnik GmbH
further reserves the right to alter the layout and/or design of the hardware without prior notification and
accepts no liability for doing so.
Copyright 2018 PHYTEC Messtechnik GmbH, D-55129 Mainz.
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2ndEdition June 2018

Contents
PHYTEC Messtechnik GmbH 2018 L-823e_2 i
List of Figures...................................................................................................ii
List of Tables ...................................................................................................iii
Conventions, Abbreviations and Acronyms ............................................................. iv
Preface ......................................................................................................... vii
1Introduction.............................................................................................. 1
1.1 Hardware Overview........................................................................................ 1
1.1.1 Features of the phyBOARD-Regor AM335x............................................... 1
1.1.2 Block Diagram................................................................................... 2
1.1.3 View of the phyBOARD-Regor AM335x .................................................... 3
2Accessing the phyBOARD-Regor Features..........................................................4
2.1 Overview of the phyBOARD-Regor Peripherals..................................................... 4
2.1.1 Connectors and Pin Header .................................................................. 4
2.1.2 LEDs................................................................................................ 6
2.1.3 Switches .......................................................................................... 8
2.1.4 Jumpers........................................................................................... 9
2.2 Functional Components on the phyBOARD-Regor SBC..........................................10
2.2.1 Power Supply ...................................................................................10
2.2.1.1 Power Connector (X1) ...........................................................10
2.2.1.2 Power LEDs D62, D63, and D68 ...............................................11
2.2.1.3 Status LEDs D66 and D67 .......................................................12
2.2.1.4 Backup Supply.....................................................................12
2.2.2 UART Connectivity (X3, X5, X6, X7) .......................................................13
2.2.2.1 RS-232 Connectivity (X5).......................................................14
2.2.2.2 RS-485 Connectivity (X3).......................................................15
2.2.3 CAN Connectivity (X3, JP3) .................................................................16
2.2.4 Ethernet Connectivity (X9) .................................................................17
2.2.4.1 MAC Address .......................................................................17
2.2.5 USB Connectivity (X4, X6)...................................................................18
2.2.6 Secure Digital Memory Card/ MultiMedia Card (X11).................................19
2.2.7 Digital GPIOs 1-4 (X2)........................................................................20
2.2.8 Card Edge Connector (X7)...................................................................22
2.2.9 Boot Mode (S4) ................................................................................23
2.2.10 System Reset Button (S2)...................................................................23
2.2.11 RTC ................................................................................................24
3System Level Customizing ........................................................................... 25
3.1 Expansion Connector (X6) .............................................................................25
3.1.1 I2C Connectivity................................................................................27
4Technical Specifications ............................................................................. 28
4.1 Product Power Rating ...................................................................................29
4.2 Product Temperature Grades ..........................................................................29
5Revision History ....................................................................................... 31
Index............................................................................................................ 32

phyBOARD-Regor AM335x [PB-01802-xxx]
ii PHYTEC Messtechnik GmbH 2018 L-823e_2
List of Figures
Figure 1: Block Diagram of the phyBOARD-Regor AM335x ................................................ 2
Figure 2: View of the phyBOARD-Regor AM335x with phyCORE-AM335x............................... 3
Figure 3: phyBOARD-Regor AM335x connectors ............................................................. 3
Figure 4: phyBOARD-Regor AM335x LEDs locations......................................................... 6
Figure 5: phyBOARD-Regor AM335x Switch Locations...................................................... 8
Figure 6: Power Supply Connector X1 ......................................................................... 10
Figure 7: LEDs D66 and D67 with Switch S2 ................................................................. 12
Figure 9: RS-485 Interface Connector X3 .................................................................... 15
Figure 10: Components supporting the CAN Interface ..................................................... 16
Figure 11: Ethernet Interfaces at Connector X9.............................................................. 17
Figure 12: USB Interface Connector X4 ........................................................................ 18
Figure 13: MMC/SD Card Interface at Connector X11 ....................................................... 19
Figure 14: Digital GPIOs at Connector X2 ...................................................................... 20
Figure 15: Card Edge Connector X7.............................................................................. 22
Figure 16: Boot Switch S4 ......................................................................................... 23
Figure 17: System Reset Button S2.............................................................................. 23
Figure 18: Expansion Connector X6 ............................................................................. 25

Contents
PHYTEC Messtechnik GmbH 2018 L-823e_2 iii
List of Tables
Table 1: Abbreviations and Acronyms used in this Manual................................................v
Table 2: phyBOARD-Regor Connectors and Pin Headers .................................................. 4
Table 3: phyBOARD-Regor LEDs Descriptions................................................................ 6
Table 3: phyBOARD-Regor LEDs Descritption (continued) ............................................... 7
Table 4: phyBOARD-Regor Switches Description............................................................ 8
Table 5: phyBOARD-Regor Jumper Description ............................................................. 9
Table 6: Pin Assignment of the 5 position Phoenix Contact MINI COMBICON Base Strip X1 ....11
Table 7: Connectors and Signal Levels of the UART Interfaces .........................................13
Table 8: Pin Assignment of the RS-232 Interface at Connector X5....................................14
Table 9: Pin Assignment of the RS-485 Interface at Connector X3....................................15
Table 10: Pin Assignment of CAN Connector X3..............................................................16
Table 11: Digital input switching levels for GPIO 1-4.......................................................20
Table 13: Pin Assignment of CardEdge Connector X7.......................................................22
Table 14: Boot Switch Configuration for S4...................................................................23
Table 15: Pin Assignment of PHYTEC Expansion Connector X6 ...........................................25
Table 16: I2C Addresses in Use ...................................................................................27
Table 17: Power ratings of the phyBOARD-Regor ...........................................................29
Table 18: Product Temperature Grades ........................................................................30

phyBOARD-Regor AM335x [PB-01802-xxx]
iv PHYTEC Messtechnik GmbH 2018 L-823e_2
Conventions, Abbreviations and Acronyms
This hardware manual describes the PB-01802-xxx Single Board Computer (SBC), hereby
referred to as phyBOARD-Regor AM335x. The manual specifies the
phyBOARD-Regor AM335x's design and function. Precise specifications for the Texas
Instruments AM335x microcontrollers can be found in the Texas Instrument’s
AM335x Data
Sheet and Technical Reference Manual
.
Conventions
The conventions used in this manual are as follows:
Signals that are preceded by an "n", "/", or “#”character (e.g.: nRD, /RD, or #RD), or
that have a dash on top of the signal name (e.g.: RD) are designated as active low
signals. That is, their active state is when they are driven low, or are driving low.
A "0" indicates a logic zero or low-level signal, while a "1" represents a logic one or
high-level signal.
The hex-numbers given for addresses of I2C devices always represent the 7 MSB of the
address byte. The correct value of the LSB, which depends on the desired command
(read (1), or write (0)), must be added to get the complete address byte. E.g. the given
address in this manual 0x41 => the complete address byte = 0x83 to read from the
device and 0x82 to write to the device.
Tables which describe jumper settings show the default position in bold, blue text.
Text in blue italic indicates a hyperlink within, or external to the document. Click these
links to quickly jump to the applicable URL, part, chapter, table, or figure.

Conventions, Abbreviations and Acronyms
PHYTEC Messtechnik GmbH 2018 L-823e_2 v
Abbreviations and Acronyms
Many acronyms and abbreviations are used throughout this manual. Use Table 1 to
navigate unfamiliar terms used in this document.
Abbreviation Definition
A/V
Audio/Video
BSP
Board Support Package (Software delivered with the Development Kit
including an operating system (Windows, or Linux) pre-installed on
the module and Development Tools)
CB
Carrier Board; used in reference to the phyBOARD-Regor Development
Kit Carrier Board
DFF
D flip-flop
DSC
Direct Solder Connect
EMB
External memory bus
EMI
Electromagnetic Interference
GPI
General purpose input
GPIO
General purpose input and output
GPO
General purpose output
IRAM
Internal RAM; the internal static RAM on the Texas Instruments
AM335x microcontroller
J
Solder jumper; these types of jumpers require solder equipment to
remove and place
JP
Solderless jumper; these types of jumpers can be removed and placed
by hand with no special tools
NC
Not Connected
NM
Not Mounted
NS
Not Specified
PCB
Printed circuit board
PDI
PHYTEC Display Interface; defined to connect PHYTEC display adapter
boards or custom adapters
PEB
PHYTEC Expansion Board
PMIC
Power management IC
PoE
Power over Ethernet
PoP
Package on Package
POR
Power-on reset
RTC
Real-time clock
SBC
Single Board Computer; used in reference to the PBA-CD-02
/phyBOARD-Regor AM335x
SMT
Surface mount technology
SOM
System on Module; used in reference to the PCL-051
/phyCORE-AM335x module
Table 1: Abbreviations and Acronyms used in this Manual

phyBOARD-Regor AM335x [PB-01802-xxx]
vi PHYTEC Messtechnik GmbH 2018 L-823e_2
Abbreviation
Definition
Sx
User button Sx (e.g. S1, S2) refers to the available user buttons or DIP
switches on the CB
Sx_y
Switch y of DIP switch Sx; refers to the DIP switch on the carrier board
VSTBY
SOM standby voltage input
Table 1: Abbreviations and Acronyms used in this Manual (continued)
At this icon you might leave the path of this Application Guide.
This is a warning. It helps you to avoid annoying problems.
You can find useful supplementary information about the topic.
The BSP delivered with the phyBOARD-Regor AM335x usually includes
drivers and/or software for controlling all components such as interfaces,
memory, etc. Therefore, programming close to hardware and register
level is not necessary in most cases. For this reason, this manual contains
no detailed description of the controller’s registers. Please refer to the
AM335x Technical Reference Manual if such information is needed to
connect customer designed applications
Beginning with BSP version AM335x-PD14.1-rc1
, it is possible to
configure the BSP in regards to the hardware configuration. This allows
the user to easily adapt the BSP if an expansion board is attached,
removed or exchanged.

Preface
PHYTEC Messtechnik GmbH 2018 L-823e_2 vii
Preface
As a member of PHYTEC's new phyBOARD®product family, the phyBOARD-Regor AM335x is
one of a series of PHYTEC System on Modules (SBCs) that offer off-the-shelf solutions for a
huge variety of industrial applications. The new phyBOARD®product family consists of a
series of extremely compact embedded control engines featuring various processing
performance classes. All phyBOARDs are rated for industry, cost optimized, and offer long-
term availability. The phyBOARD-Regor AM335x is one of currently six industrial-grade
carrier boards which are suitable for series production and that have been realized in
accordance with PHYTEC's new SBCplus concept. It is an excellent example of this concept.
For easy implementation into industrial control system racks, the
phyBOARD-Regor AM335x comes in a housing with integrated DIN-Rail sockets.
Furthermore, the board is equipped with connectors allowing for interconnection to
commonly used industrial interfaces.
SBCplus Concept
The SBCplus concept was developed to meet many slight differences in customer
requirements with little development effort and thus greatly reduce the time-to-market.
The core of the SBCplus concept is the SBC design library (a kind of construction set) that
consists of a great number of function blocks (so-called "building blocks") which are
constantly refined. The recombination of these function blocks allows PHYTEC to develop a
customer specific SBC within a short time. Thus, PHYTEC is able to deliver production-ready
custom Single Board Computers within a few weeks at very low costs.
The already developed SBCs, such as the phyBOARD-Regor, each represent an intersection
of different customer wishes. Because of this, all necessary interfaces are already available
on the standard versions. This allows the user to integrate the phyBOARD in a large number
of applications without modification. For any necessary detail adjustments, extension
connectors are available to enable adding a wide variety of functions.
Customized Expandability from PHYTEC
Common interface signals route to standard connector interfaces on the carrier board such
as Ethernet, CAN, RS-232, and audio. Due to the easily modifiable phyBOARD design
approach (see "
SBCplus concept "), these plug-and-play interfaces can be readily adapted
into customer-specific variants according to end system requirements.

phyBOARD-Regor AM335x [PB-01802-xxx]
viii PHYTEC Messtechnik GmbH 2018 L-823e_2
OEM Implementation
Implementation of an OEM-able SBC subassembly as the "core" of an embedded design
allows for increased focus on hardware peripherals and firmware without expending
resources to "re-invent" microcontroller circuitry. Furthermore, much of the value of the
phyBOARD®SBC lies in its layout and test.
Software Support
Production-ready Board Support Packages (BSPs) and Design Services for our hardware will
further reduce development time and risk, while at the same time allowing for increased
focus on the product expertise.

Preface
PHYTEC Messtechnik GmbH 2018 L-823e_2 ix
Ordering Information
Ordering numbers:
phyBOARD-Regor AM335x Development Kit: KPB-01802-xxx
phyBOARD-Regor AM335x SBC: PB-01802-xxx
Product Specific Information and Technical Support
In order to receive product specific information on all future changes and updates, we
recommend registering at:
http://www.phytec.de/de/support/registrierung.html or
http://www.phytec.eu/europe/support/registration.html
For technical support and additional information concerning your product, please visit the
phyBOARD-Regor section of our web site which provides product specific information,
such as errata sheets, application notes, FAQs, etc.
http://www.phytec.de/produkt/single-board-computer/phyboard-regor/
Other Products and Development Support
Aside of the new phyBOARD®family, PHYTEC supports a variety of 8-/16- and 32-bit
controllers in two ways:
(1) as the basis for Rapid Development Kits which serve as a reference and evaluation
platform
(2) as insert-ready, fully functional OEM modules, which can be embedded directly into
the user’s peripheral hardware design.
Take advantage of PHYTEC products to shorten time-to-market, reduce development costs,
and avoid substantial design issues and risks. With this new innovative full system
solution, new ideas can be brought to market in the most timely and cost-efficient manner.
For more information go to:
http://www.phytec.de/de/leistungen/entwicklungsunterstuetzung.html or
www.phytec.eu/europe/oem-integration/evaluation-start-up.html

phyBOARD-Regor AM335x [PB-01802-xxx]
xPHYTEC Messtechnik GmbH 2018 L-823e_2
Declaration of Electro Magnetic Conformity of the PHYTEC
phyBOARD-Regor AM335x
PHYTEC Single Board Computers (henceforth products) are designed for
installation in electrical appliances, as part of custom applications, or as dedicated
Evaluation Boards (i.e. for use as a test and prototype platform for hardware/software
development) in laboratory environments.
PHYTEC products lacking protective enclosures are subject to damage by
ESD and, therefore, must be
unpacked, handled or operated in
environments in which sufficient precautionary measures have been take
in respect to ESD dangers. It is also necessary that only appropriately
trained personnel (such as electricians, technicians and engineers)
handle and/or operate these products. Moreover, PHYTEC products should
not be operated without protection circuitry if connections to the
product’s pin header rows are longer then 3m.
PHYTEC products fulfill the norms of the European Union’s Directive for Electro Magnetic
Conformity only in accordance with the descriptions and rules of usage indicated in this
hardware manual (particularly in respect to the pin header row connectors, power
connector and serial interface to a host-PC).
Implementation of PHYTEC products into target devices, as well as user modifications and
extensions of PHYTEC products, is subject to renewed establishment of conformity to, and
certification of, Electro Magnetic Directives. Users should ensure conformance following
any modifications to the products as well as implementation of the products into target
systems.

Preface
PHYTEC Messtechnik GmbH 2018 L-823e_2 xi
Product Change Management and information in this manual on parts populated on
the SOM / SBC
With the purchace of a PHYTEC SOM / SBC, you will, in addition to our HW and SW offerings,
receive free obsolescence maintenance service for the HW we provide.
Our PCM (Product Change Management) Team of developers, is continuously processing all
incoming PCN's (Product Change Notifications) from vendors and distributors concerning
parts which are used in our products.
Possible impacts to the functionality of our products, due to changes of functionality or
obsolesce of a certain part, are constantly being evaluated in order to take the right
measures in purchasing or within our HW/SW design.
Our general philosophy here is: We never discontinue a product as long as there is
demand for it.
Therefore, we have established a set of methods to fulfill our philosophy:
Avoidance strategies
•Avoid changes by evaluating longevity of parts during design in phase.
•Ensure availability of equivalent second source parts.
•Stay in close contact with part vendors to be aware of roadmap strategies.
Change management (in the rare event of an obsolete and non replaceable part)
•Ensure long term availability by stocking parts through last time buy management
according to product forecasts.
•Offer long term frame contract to customers.
Change management (in case of functional changes)
•Avoid impacts on product functionality by choosing equivalent replacement parts.
•Avoid impacts on product functionality by compensating changes through HW redesign
or backward compatible SW maintenance.
•Provide early change notifications concerning functional relevant changes of our
products.
Therefore, we refrain from providing detailed part specific information within this
manual, which can be subject to continuous changes, due to part maintenance for
our products.
In order to receive reliable, up to date, and detailed information concerning parts
used for our product, please contact our support team through the contact
information given within this manual.

phyBOARD-Regor AM335x [PB-01802-xxx]
xii PHYTEC Messtechnik GmbH 2018 L-823e_2

Introduction
PHYTEC Messtechnik GmbH 2018 L-823e_2 1
1Introduction
1.1 Hardware Overview
The phyBOARD-Regor for phyCORE-AM335x is a low-cost, feature-rich software
development platform supporting the Texas Instruments AM335x microcontroller.
Moreover, due to the numerous standard interfaces, the phyBOARD-Regor AM335x can
serve a foundation for many applications. At the core of the phyBOARD-Regor is the
PCM-051/phyCORE-AM335x System On Module (SOM), containing the processor, DRAM,
NAND Flash, power regulation, supervision, transceivers, and other core functions required
to support the AM335x processor. Surrounding the SOM is the PBA-C-08/phyBOARD-Regor
carrier board, adding power input, buttons, connectors, signal breakout, and Ethernet
connectivity amongst other things.
1.1.1 Features of the phyBOARD-Regor AM335x
The phyBOARD-Regor AM335x supports the following features :
•Developed in accordance with PHYTEC's new SBCplus concept (
Preface )
•PHYTEC’s phyCORE-AM335x SOM
•Phoenix Contact ME Max 3U1 standard dimensions
•Boot from SD card or NAND Flash
•Max. 1 GHz core clock frequency
•Single supply voltage of 24 V ±10 % via 1×5 position Phoenix Contact MINI COMBICON
connector 3.5 mm) or via Card Edge connector
•Two RJ45 jacks for 10/100 Mbps Ethernet
•Two USB OTG interfaces available (one at USB Micro-AB connector and one at the
expansion connector)
•One Secure Digital / Multi Media Memory Card interface brought out to a Micro-SD
connector
•2 x RS-232 transceivers supporting UART0 and UART2 with data rates of up to 1 Mbps at
1×5 position Phoenix Contact MINI COMBICON connector 3.5 mm
•RS-485 transceiver supporting UART1 with data rates of up to 1 Mbps at 1×5 position
Phoenix Contact MINI COMBICON connector 3.5 mm
•CAN interface at 1×5 position Phoenix Contact MINI COMBICON connector 3.5 mm
•Reset-Button
•RTC with memory backup capacitor (Gold Capacitor, lasts approx. 7 days)
•Expansion connector with different interfaces
•Card Edge connector to incorporate a DIN rail bus connection

phyBOARD-Regor AM335x [PB-01802-xxx]
2PHYTEC Messtechnik GmbH 2018 L-823e_2
1.1.2 Block Diagram
Figure 1: Block Diagram of the phyBOARD-Regor AM335x

Introduction
PHYTEC Messtechnik GmbH 2018 L-823e_2 3
1.1.3 View of the phyBOARD-Regor AM335x
Figure 2: View of the phyBOARD-Regor AM335x with phyCORE-AM335x
Figure 3: phyBOARD-Regor AM335x connectors

phyBOARD-Regor AM335x [PB-01802-xxx]
4PHYTEC Messtechnik GmbH 2018 L-823e_2
2Accessing the phyBOARD-Regor Features
PHYTEC phyBOARD-Regor is fully equipped with all mechanical and electrical components
necessary for a speedy and secure start-up.
2.1 Overview of the phyBOARD-Regor Peripherals
The phyBOARD-Regor is depicted in Figure 2 . It features many different interfaces and is
equipped with the components listed in
Table 2 and Table 3 . For a more detailed
description of each peripheral, refer to the appropriate chapter listed in the applicable
table.
Figure 3 highlights the location of each peripheral for easy identification.
2.1.1 Connectors and Pin Header
Table 2 lists all available connectors on the phyBOARD-Regor .Figure 3 highlights
the location of each connector for easy identification.
Reference
Designator Description See Section
X1
Power supply 12 V – 24 V (1×5 positions Phoenix Contact
MINI COMBICON connector 3.5 mm pitch)
2.2.1.1
X2
4 x digital input/output (1×5 positions Phoenix Contact
MINI COMBICON connector 3.5 mm pitch)
2.2.7
X3
CAN / RS-485 connector (UART1) (1×5 positions Phoenix
Contact MINI COMBICON connector 3.5 mm pitch)
2.2.2
2.2.3
X4
USB On-The-Go connector (USB Micro-AB)
2.2.5
X5
RS-232 (UART0 and UART2) (1×5 positions Phoenix
Contact MINI COMBICON connector 3.5 mm pitch)
2.2.2
X6
Expansion connector (2×30 socket connector 2 mm pitch)
3.1
X7
Card Edge connector to incorporate DIN rail bus
connectivity with RS-485 interface (UART1) or CAN
interface (CAN0)
2.2.8
X9
Ethernet 0/1 connector (dual RJ45 with speed and link
LED)
2.2.4
X11
Secure Digital / Multi Media Card (Micro-slot)
2.2.6
X64
phyCORE-Connector (1x50 pin and 1x60 pin Samtec
connector)
4
Table 2: phyBOARD-Regor Connectors and Pin Headers

Accessing the phyBOARD-Regor Features
PHYTEC Messtechnik GmbH 2018 L-823e_2 5
Ensure that all module connections do not exceed their expressed
maximum voltage or current. Maximum signal input values are indicated in
the corresponding controller User's Manual/Data Sheets. As damage from
improper connections can vary according to use and application, it is the
user‘s responsibility to take appropriate safety measures to ensure that the
module connections are protected from overloading through connected
peripherals.

phyBOARD-Regor AM335x [PB-01802-xxx]
6PHYTEC Messtechnik GmbH 2018 L-823e_2
2.1.2 LEDs
Figure 4: phyBOARD-Regor AM335x LEDs locations
The phyBOARD-Regor is populated with seven LEDs to indicate the status of the USB VBUS
voltages, the power supply voltages, and the RUN/STOP and ERROR status which are visible
through 2 holes in the housing.
Figure 4 shows the location of the LEDs. Their functions are listed in Table 3 .
LED Color Description
See
Section
D7 green
Indicates presence of VBUS for the USB OTG interface at
expansion connector X6
3.1
D8 green
Indicates presence of VBUS for the USB OTG interface at
USB Micro-AB connector X4
2.2.5
D62
green
5 V voltage generation of the phyBOARD-Regor
2.2.1.2
D63 green
3.3 V voltage of the phyBOARD-Regor (approved and
enabled by supply voltage supervisor IC)
Table 3: phyBOARD-Regor LEDs Descriptions