Phytec phyCORE-AM335 Series User manual

A product of a PHYTEC Technology Holding company
phyCORE-AM335x
Hardware Manual
Document No: L-771e_0
SOM Product No:PCM-051
SOM PCB No:1358.1
Carrier Board Product No:PCM-953
Carrier Board PCB No:1359.1
GPIO Expansion Board Product No: PCM-957
Edition June 2012
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phyCORE-AM335x
© PHYTEC Messtechnik GmbH 2012 L-771e_0
In this manual are descriptions for copyrighted products that are not explicitly indicated as such. The absence
of the trademark (™), registered trademark (®) and copyright (©) symbols does not imply that a product is not
protected. Additionally, registered patents and trademarks are similarly not expressly indicated in this manual.
The information in this document has been carefully checked and is believed to be entirely reliable. 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
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contained herein without prior notification and accepts no responsibility for any damages which might result.
Additionally, PHYTEC Messtechnik GmbH offers no guarantee nor accepts any liability for damages arising 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 2012 PHYTEC Messtechnik GmbH, D-55129 Mainz.
Rights - including those of translation, reprint, broadcast, photomechanical or similar reproduction and
storage or processing in computer systems, in whole or in part - are reserved. No reproduction may occur
without the express written consent from PHYTEC Messtechnik GmbH.
Preliminary Edition June 2012
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Address: PHYTEC Messtechnik GmbH
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GERMANY
PHYTEC America LLC
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Bainbridge Island, WA 98110
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Ordering Information: [phone]
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http://www.phytec.eu
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phyCORE-AM335x Table of content
L-771e_0 © PHYTEC Messtechnik GmbH 2012
Table of Contents
Conventions, Abbreviations and Acronyms .............................................. 1
Preface............................................................................................... 5
1 Part I: PCM-051/phyCORE-AM335x System on Module ............................... 1
1.1 Introduction ................................................................................. 1
1.1.1Block Diagram........................................................................ 2
1.1.2View of the phyCORE-AM335x .................................................... 3
1.1.3Minimum Requirements to Operate the phyCORE-AM335x................ 5
1.2 phyCORE Connectors and Pins........................................................... 6
1.3 Jumpers......................................................................................18
1.4 Power .........................................................................................22
1.4.1Primary System Power (VDD_5V_IN) ..........................................22
1.4.2Optional Backup Power (VBAT_IN_4RTC).....................................22
1.4.3Power Management IC (U4)......................................................23
1.4.3.1 Backup Battery Management..........................................24
1.5 Real-Time Clock (RTC) ....................................................................25
1.6 System Configuration and Booting ...................................................26
1.7 System Memory ............................................................................27
1.7.1DDR3-SDRAM (U7, U9) ............................................................27
1.7.2NAND Flash Memory (U10) .......................................................27
1.7.3SPI Flash Memory (U5)............................................................27
1.7.4I²C EEPROM (U6)....................................................................27
1.7.4.1 Setting the EEPROM Lower Address Bits (J7, J8).................28
1.7.4.2 EEPROM Write Protection Control (J9) ..............................28
1.7.5Memory Model.......................................................................28
1.8 SD / MMC Card Interfaces................................................................29
1.9 Serial Interfaces ...........................................................................30
1.9.1Universal Asynchronous Receiver/Transmitter Interfaces (UARTs)....30
1.9.2USB-OTG interfaces ................................................................31
1.9.3Ethernet1 with PHY (U3)..........................................................32
1.9.4Ethernet 2 ............................................................................33
1.9.5Profibus ...............................................................................33
1.9.6I²C Interface .........................................................................33
1.9.7SPI Interfaces .......................................................................34
1.9.8Controller Area Network (CAN) Interfaces ...................................35
1.9.9Multichannel Audio Serial Ports (McASP) ....................................35
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Table of content phyCORE-AM335x
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1.10 General Purpose I/Os..................................................................... 36
1.11 JTAG / Debug Interface (X2)............................................................ 37
1.12 Display Interface .......................................................................... 39
1.12.1Parallel Display Interface....................................................... 39
1.12.2Touch Screen Controller ........................................................ 40
1.13 Technical Specifications................................................................. 41
1.14 Handling the phyCORE-AM335x ....................................................... 43
1.15 Component Placement Diagram ....................................................... 44
2 Part II: PCM-953 / phyCORE-AM335x Carrier Board ..................................47
2.1 The phyCORE-AM335x SOM on the phyCORE-AM335x Carrier Board.......... 47
2.1.1phyCORE-AM335x Carrier Board Power ....................................... 48
2.1.2Overview of the phyCORE-AM335x Carrier Board Peripherals ........... 49
2.1.2.1 Connectors and Pin Headers........................................... 50
2.1.2.2 Buttons ..................................................................... 51
2.1.2.3 LEDs ......................................................................... 52
2.1.2.4 Jumpers .................................................................... 53
2.1.2.5 Carrier-Board Boot-Configuration Switch S5 ..................... 57
2.1.2.6 Carrier Board Bus Switches ............................................ 58
2.1.2.7 Ethernet 1 (X12).......................................................... 60
2.1.2.8 Ethernet 2 (X9) ........................................................... 62
2.1.2.9 EtherCAT 0 and 1 (X10 and X11)...................................... 63
2.1.2.10Profibus (X19) ........................................................... 64
2.1.2.11RS-232 (X18)............................................................. 65
2.1.2.12CAN (X13) ................................................................. 66
2.1.2.13USB (X7 and X8)......................................................... 67
2.1.2.14SPI (X5).................................................................... 69
2.1.2.15JTAG (X21)................................................................ 70
2.1.2.16Display / Touch (X4).................................................... 72
2.1.2.16.1Parallel Display Interface Connector (X4) .................. 73
2.1.2.16.2PDI Power Connector (X31) .................................... 75
2.1.2.17MMC/SD (X20) ........................................................... 76
2.1.2.18McASP (X14, X15, X16, X17).......................................... 77
2.1.2.19WiFi (X27)................................................................. 79
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3 Part III: PCM-957 GPIO Expansion Board ................................................81
3.1 GPIO Expansion Board Analog Signals ...............................................81
3.2 GPIO Expansion Board Control Signals...............................................81
3.3 GPIO Expansion Board GPIO Signals ..................................................82
3.4 GPIO Expansion Board GPMC Signals .................................................82
3.5 GPIO Expansion Board Power Signals ................................................83
3.6 GPIO Expansion Board Serial Interfaces .............................................83
3.7 Signals Not Connected to the GPIO Expansion Board ............................85
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phyCORE-AM335x List of tables
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List of Tables
Table 1: Pinout of the phyCORE-Connector X1, Row A ........................................................ 8
Table 2: Pinout of the phyCORE-Connector X1, Row B .......................................................10
Table 3: Pinout of the phyCORE-Connector X3, Row A .......................................................13
Table 4: Pinout of the phyCORE-Connector X3, Row B .......................................................16
Table 5: SOM Jumper Settings .....................................................................................20
Table 6: Boot Device Order of AM335x Module 1 ..............................................................26
Table 7: U6 EEPROM I²C Address via J7 and J8.................................................................28
Table 8: EEPROM Write Protection States Via J9 1 ............................................................28
Table 9: Locations of Named SD/MMC0 Card Interface Signals on phyCORE Connector X3 .........29
Table 10: Locations of the UART Signals ..........................................................................31
Table 11: Location of the USB-OTG signals on the phyCORE connectors..................................31
Table 12: Ethernet1 Signals..........................................................................................32
Table 13: Location of the Ethernet 2 signals.....................................................................33
Table 14: I²C Interface Signal Locations ..........................................................................34
Table 15: SPI Interface Signal Locations..........................................................................34
Table 16: McASP Signal Locations ..................................................................................35
Table 17: Locations of Dedicated GPIO Pins......................................................................36
Table 18: JTAG Connector X2 Signal Assignments..............................................................38
Table 19: Location of JTAG Pins on phyCORE Connector X1 ..................................................38
Table 20: Parallel Display Interface Signal Locations..........................................................39
Table 21: phyCORE-AM335x Carrier Board Connectors and Pin Headers..................................50
Table 22: phyCORE-AM335x Carrier Board Push Buttons Descriptions ....................................52
Table 23: phyCORE-AM335x Carrier Board LEDs Descriptions................................................53
Table 24: phyCORE-AM335x Carrier Board Jumper Descriptions............................................55
Table 25: Carrier Board Boot Configuration Switch S5 ........................................................58
Table 26: How to Configure Bus Switch Enable Signals With JP3 and JP4................................59
Table 27: Which Interfaces are Enabled with Which JP3 and JP4 Signal Settings ......................59
Table 28: Bus Switch Enable Status LEDs .........................................................................60
Table 29: USB Connectors for Different Operating Modes ....................................................68
Table 30: Carrier Board JTAG Connector X21.....................................................................71
Table 31: PDI Connector X4 Signal Description .................................................................73
Table 32: Auxiliary Interfaces at LVDS Display Connector X4 ................................................75
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phyCORE-AM335x
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Table 33: PDI Power Connector X31 Signal Description ...................................................... 75
Table 34: Audio Connectors ......................................................................................... 77
Table 35: Audio Hardware Configuration Jumpers ............................................................ 78
Table 36: GPIO Expansion Board Analog Signal Map.......................................................... 81
Table 37: GPIO Expansion Board Control Signal Map ......................................................... 81
Table 38: GPIO Expansion Board GPIO Signal Map............................................................. 82
Table 39: GPIO Expansion Board GPMC Signal Map ............................................................ 82
Table 40: GPIO Expansion Board Power Signal Map ........................................................... 83
Table 41: GPIO Expansion Board Serial Interfaces Signal Map ............................................. 83
Table 42: AM335x SOM Signals Not Routed to the GPIO Expansion Connector X5 ..................... 85
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phyCORE-AM335x List of figures
L-771e_0 © PHYTEC Messtechnik GmbH 2012
List of Figures
Figure 1: Block Diagram of the phyCORE-AM335x............................................................... 2
Figure 2: Top View of the phyCORE-AM335x (controller side)................................................ 3
Figure 3: Bottom View of the phyCORE-AM335x (connector side) .......................................... 4
Figure 4: phyCORE Pinout Viewed Through the Top of the SOM .............................................. 6
Figure 5: Jumper Locations (Top View) ...........................................................................19
Figure 6: AM335x SOM Power Scheme.............................................................................23
Figure 7: JTAG Interface at X2 (Top View)........................................................................37
Figure 8: Physical Dimensions.......................................................................................41
Figure 9: phyCORE-AM335x Component Placement (Top View).............................................44
Figure 10: phyCORE-AM335x Component Placement (Bottom View) .......................................45
Figure 11: +5 VDC Power Input Connector .........................................................................48
Figure 12: phyCORE-AM335x Carrier Board Overview of Connectors and Buttons (Top View) ........49
Figure 13: Carrier Board Buttons.....................................................................................51
Figure 14: Carrier Board LEDs.........................................................................................52
Figure 15: Carrier Board Jumper Locations........................................................................54
Figure 16: Jumper Numbering Scheme .............................................................................54
Figure 17: Switch S5 Location ........................................................................................57
Figure 18: Bus Enable Jumpers and LEDs ..........................................................................59
Figure 19: Ethernet1 Connector......................................................................................60
Figure 20: Ethernet 2 Connector .....................................................................................62
Figure 21: EtherCAT Connectors ......................................................................................63
Figure 22: Profibus Connector ........................................................................................64
Figure 23: RS-232 Connector..........................................................................................65
Figure 24: CAN Connector..............................................................................................66
Figure 25: USB Connectors and Jumpers...........................................................................67
Figure 26: X5 GPIO Expansion Board Connectors ................................................................69
Figure 27: JTAG Connector.............................................................................................70
Figure 28: Display Connectors ........................................................................................72
Figure 29: MMC/SD Connector ........................................................................................76
Figure 30: Audio Connectors ..........................................................................................77
Figure 31: WiFi Connector..............................................................................................79
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phyCORE-AM335x
© PHYTEC Messtechnik GmbH 2012 L-771e_0
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phyCORE-AM335x
L-771e_0 © PHYTEC Messtechnik GmbH 2012
Conventions, Abbreviations and Acronyms
This hardware manual describes the PCM-051 System on Module in the following referred to as phyCORE-
AM335x. The manual specifies the phyCORE-AM335x's design and function. Precise specifications for the Texas
Instruments AM335X microcontrollers can be found in Texas Instrument's AM335x Data Sheet and Technical
Reference Manual.
Conventions
The conventions used in this manual are as follows:
•Signals that end with a "n" character (e.g.: RDn) 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. given address in this manual 0x41 => 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.
•References made to the phyCORE-Connector always refer to the high density Samtec connectors on the
undersides of the phyCORE-AM335x.
•Different types of signals are brought out at the phyCORE-Connector. The following table lists the abbrevia-
tions used to specify the type of a signal.
Type of Signal Description Abbr.
Power Supply voltage PWR
Ref-Voltage Reference voltage REF
USB-Power USB voltage USB
Input Digital input IN
Output Digital output OUT
Input with pull-up Input with pull-up, must only be connected to GND.
(jumper or open-collector output).
IPU
Input / output Bidirectional input / output IO
5V Input with pull-down 5 V tolerant input with pull-down 5V_PD
LVDS Differential line pairs 100 Ohm LVDS Pegel LVDS
Differential 90 Ohm Differential line pairs 90 Ohm DIFF90
Differential 100 Ohm Differential line pairs 100 Ohm DIFF100
Analog Analog input or output Analog
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phyCORE-AM335x
© PHYTEC Messtechnik GmbH 2012 L-771e_0
Abbreviations and Acronyms
Abbreviation Definition
BSP Board Support Package (Software delivered with the Development Kit including an operating
system (Windows, or Linux) preinstalled on the module and Development Tools).
CB Carrier Board; used in reference to the phyCORE-AM335x Development Kit Carrier Board.
DFF D flip-flop
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.
PCB Printed circuit board
PDI PHYTEC Display Interface; defined to connect PHYTEC display adapter boards, or custom
adapters.
PEB PHYTEC Extension Board
PMIC Power management IC
PoE Power over Ethernet
PoP Package on Package
POR Power-on reset
RTC Real-time clock
SMT Surface mount technology
SOM System on Module; used in reference to the PCM-051 / phyCORE-AM335x System on Module.
Sx User button Sx (e.g. S1, S2, etc.) used in reference to the available user buttons, or
DIP-Switches on the carrier board.
Sx_y Switch y of DIP-Switch Sx; used in reference to the DIP-Switch on the carrier board.
VBAT SOM standby voltage input
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phyCORE-AM335x
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Note
The BSP delivered with the phyCORE-AM335x usually includes drivers and/or software for controlling all
components such as interfaces, memory, etc.. Therefore programming close to hardware at register level is
not necessary in most cases. For this reason, this manual contains no detailed description of the controller's
registers, or information relevant for software development. Please refer to the AM335x Technical Reference
Manual, if such information is needed to connect customer designed applications.
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phyCORE-AM335x
L-771e_0 © PHYTEC Messtechnik GmbH 2012
Preface
This phyCORE-AM335x Hardware Manual has three sections. The first section describes the System on Module's
design and functions. The second section describes the PHYTEC Carrier Board for the SOM. And the third section
describes the GPIO Expansion Board that can connect to the Carrier Board.
Declaration of Electro Magnetic Conformity of the PHYTEC phyCORE-AM335x
PHYTEC System on Modules (henceforth products) are designed for installation in electrical appliances or as
dedicated Evaluation Boards (i.e.: for use as a test and prototype platform for hardware/software development)
in laboratory environments.
PHYTEC products fulfill the norms of the European Union’s Directive for Electro Magnetic Conformity only in
accordance to 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).
Caution
PHYTEC products lacking protective enclosures are subject to damage by ESD and, hence, may only be
unpacked, handled or operated in environments in which sufficient precautionary measures have been taken
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 headers are longer than 3 m.
Caution
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 imple-
mentation of the products into target systems.
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phyCORE-AM335x Part I: PCM-051/phyCORE-AM335x System on Module
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1 Part I: PCM-051/phyCORE-AM335x System on Module
Part 1 of this three part manual provides detailed information on the phyCORE-AM335x System on Module (SOM)
designed for custom integration into customer applications. The information in the following chapters is
applicable to the 1358.1 PCB revision of the phyCORE-AM335x SOM.
1.1 Introduction
The phyCORE-AM335x is one of a series of PHYTEC System on Modules (SOMs) that can be populated with differ-
ent controllers and, hence, offers various functions and configurations. 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 phyCORE OEM modules, which can be embedded directly into the user's
peripheral hardware design.
Implementation of an OEM-able SOM subassembly as the "core" of your embedded design allows you to focus
on hardware peripherals and firmware without expending resources to "re-invent" microcontroller circuitry.
Furthermore, much of the value of the phyCORE module lies in its layout and test.
Production-ready Board Support Packages (BSPs) and Design Services for our hardware further reduce develop-
ment time and expenses. Take advantage of PHYTEC products to shorten time-to-market, reduce development
costs, and avoid substantial designs issues and risks. For more information go to:
http://www.phytec.de/de/leistungen/entwicklungsunterstuetzung.html or
http://www.phytec.eu/europe/oem-integration/evaluation-start-up.html
The phyCORE-AM335x offers the following features:
•Insert-ready, sub-miniature (44 x 50 mm) System on Module (SOM) subassembly in low EMI design,
achieved through advanced SMD technology
•Populated with the Texas Instruments AM335x microcontroller (ZCZ 324-pin PBGA package)
•Improved interference safety achieved through multi-layer PCB technology and dedicated ground pins
•Controller signals and ports extend to two high-density (0.5 mm) Samtec connectors aligning two sides of
the board, enabling it to be plugged like a "big chip" into target application
•Max. 720 MHz core clock frequency
•Boot from NAND Flash, SPI Flash, or SD Card
•128 MByte (up to 512 MByte) on-board NAND Flash1
•256 MByte (up to 1 GByte) DDR3 SDRAM
•4 KB (up to 32 KB) I²C EEPROM
•2x High-Speed USB OTG ports
•1x 10/100 MBit Ethernet interface
•1x 10/100/1000 RGMII Ethernet interface
•Single supply voltage of 5V (max. 600mA) with on-board power management
•All controller required supplies generated on board
1. Please contact PHYTEC for more information about additional module configurations.
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Part I: PCM-051/phyCORE-AM335x System on Module phyCORE-AM335x
2©PHYTEC Messtechnik GmbH 2012 L-771e_0
•Parallel LCD-Interface with an integrated touch interface and up to 24 data bits
•Support of standard 20 pin debug interface through JTAG connector
•3x I²C interfaces
•2x SPI interfaces
•3x SD/MMC card interfaces
•Real-Time Clock
•2x Multi-channel audio serial interfaces (McASP)
1.1.1 Block Diagram
Figure 1: Block Diagram of the phyCORE-AM335x
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phyCORE-AM335x Part I: PCM-051/phyCORE-AM335x System on Module
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1.1.2 View of the phyCORE-AM335x
Figure 2: Top View of the phyCORE-AM335x (controller side)
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Figure 3: Bottom View of the phyCORE-AM335x (connector side)
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1.1.3 Minimum Requirements to Operate the phyCORE-AM335x
Basic operation of the phyCORE-AM335x only requires supply of a +5.0 V input voltage with 1.0 Amp load and
the corresponding GND connections.
These supply pins are located at the phyCORE-Connector X3:
VCC_5V0: Connector: X3 Pins: 1B, 2B, 3B, 5B
Connect all +5.0V VCC input pins to your power supply and at least the matching number of GND pins.
Corresponding GND: Connector: X3 Pins: 1A, 4A, 8A, 4B, 7B
Please refer to Section 1.2 for information on additional GND Pins located at the phyCORE-Connector X3.
Caution
We recommend connecting all available +5V0 input pins to the power supply system on a custom carrier board
housing the phyCORE-AM335x and at least the matching number of GND pins neighboring the +5V0 pins.
In addition, proper implementation of the phyCORE-AM335x module into a target application also requires
connecting all GND pins neighboring signals that are being used in the application circuitry. Please refer to
Section 1.4 for more information.
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Part I: PCM-051/phyCORE-AM335x System on Module phyCORE-AM335x
6©PHYTEC Messtechnik GmbH 2012 L-771e_0
1.2 phyCORE Connectors and Pins
Please note that all module connections are not to exceed their expressed maximum voltage or current.
Maximum signal input values are indicated in the corresponding controller manuals/data sheets. As damage
from improper connections varies according to use and application, it is the user's responsibility to take appro-
priate safety measures to ensure that the module connections are protected from overloading through
connected peripherals.
All controller signals extend to surface mount technology (SMT) connectors (0.5 mm) lining two sides of the
module (referred to as the phyCORE-Connector). This allows the phyCORE-AM335x to be plugged into any target
application like a big chip.
The numbering scheme for the phyCORE-Connector is based on a two dimensional matrix in which column
positions are identified by a letter and row position by a number. Pin A1, for example, is located in the upper
left hand corner of the matrix looking down through the top of the SOM. The pin numbering values increase
moving down on the board. Lettering of the pin connector rows progresses alphabetically from left to right for
each connector (refer to Figure 4 ).
Figure 4: phyCORE Pinout Viewed Through the Top of the SOM
The tables Table 1, Table 2, Table 3and Table 4 provide an overview of the pinout of the phyCORE-Connector with
signal names and descriptions specific to the phyCORE-AM335x. It also lists the signal level interface voltages
in the SL (Signal Level) column and the signal direction in the Type column.
Since most of the controller pins are multiplexed with multiple functions, the table relates only to the pin
functions as they are used with PHYTEC's carrier board. This means that you can use any of the other pin multi-
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