Phytec phyCORE-OMAP44 Series, Руководство по оборудованию

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phyCORE-OMAP44xx
L-760e_1 © PHYTEC Messtechnik GmbH 2012 1
Conventions, Abbreviations and Acronyms
This hardware manual describes the PCM-049 System on Module in the following referred to as
phyCORE-OMAP44xx. The manual specifies the phyCORE-OMAP44xx's design and function. Precise specifica-
tions for the Texas Instruments OMAP44xx microcontrollers can be found in the enclosed microcontroller Data
Sheet/User's Manual.
Conventions
The conventions used in this manual are as follows:
• Signals that are preceded by a "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 I
2
C 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 connector on the
undersides of the phyCORE-OMAP44xx System on Module.
Abbreviations and Acronyms
Many acronyms and abbreviations are used throughout this manual. Use the table below to navigate unfamiliar
terms used in this document.
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-OMAP44xx 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 OMAP44xx 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
Table 1: Abbreviations and Acronyms used in this Manual