OMAP-L138 SOM-M1 Hardware Specification
Hardware Documentation
Logic PD // Products
Published: August 2009
Last revised: November 2010
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PN 1013755 Rev 5
Logic Product Development Company, All Rights Reserved
PRELIMINARY DOCUMENT—SUBJECT TO CHANGE
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OMAP-L138 SOM-M1 Hardware Specification
Revision History
REV
1
2
3
4
EDITOR
REVISION DESCRIPTION
Schematic
PN & REV
—
1013536 Rev 3
1013253 Rev 3
1013536 Rev 3
1013253 Rev 3
1013536 Rev 3
1013253 Rev 3
APPROVAL
—
JCA
RS
JCA
DATE
07/24/09
08/21/09
10/05/09
11/03/09
RS & JCA Internal release
RS & JCA Initial Beta release
RS
JCA
-Section 3.2: Added typical active current numbers to table
-Added Section 2.3.4 and referenced drawings in Appendix B
-Appendix A: corrected J2 and J3 connector locations on drawing
-Section 2.3.1: Corrected height of SOM;
-Section 2.4: Added Industrial temperature range; Added Caution
about system temperatures when enabling SATA;
-Updated mechanical drawings in Appendices
5
JCA
1014647 Rev A
1014576 Rev A KTL
11/05/10
Please check
www.logicpd.com
for the latest revision of this document, product change notifications, and
additional documentation.
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OMAP-L138 SOM-M1 Hardware Specification
Table of Contents
1
Introduction ........................................................................................................................................... 1
1.1 Product Overview ............................................................................................................................. 1
1.2 Abbreviations, Acronyms, & Definitions ........................................................................................... 1
1.3 Nomenclature ................................................................................................................................... 2
1.4 Scope of Document.......................................................................................................................... 2
1.5 Additional Documentation Resources .............................................................................................. 2
Functional Specification ...................................................................................................................... 4
2.1 Processor ......................................................................................................................................... 4
2.1.1 OMAP-L138 Processor .............................................................................................................. 4
2.1.2 OMAP-L138 Processor Block Diagram ..................................................................................... 5
2.2 SOM Interface .................................................................................................................................. 5
2.2.1 OMAP-L138 SOM-M1 Block Diagram ....................................................................................... 6
2.3 Mechanical Specifications ................................................................................................................ 6
2.3.1 Mechanical Characteristics of SOM .......................................................................................... 6
2.3.2 Interface Connectors ................................................................................................................. 7
2.3.3 OMAP-L138 SOM-M1 Mechanical Drawings ............................................................................ 7
2.3.4 Example OMAP-L138 SOM-M1 Retention Methods ................................................................. 7
2.4 Temperature Specifications ............................................................................................................. 7
Electrical Specification ........................................................................................................................ 8
3.1 Absolute Power Maximum Ratings .................................................................................................. 8
3.2 Recommended Power Operating Conditions................................................................................... 8
Peripheral Specification ....................................................................................................................... 9
4.1 Clocks............................................................................................................................................... 9
4.2 Memory ............................................................................................................................................ 9
4.2.1 Mobile DDR ............................................................................................................................... 9
4.2.2 SPI Flash ................................................................................................................................... 9
4.3 10/100 Ethernet PHY ....................................................................................................................... 9
4.4 Display Interface ............................................................................................................................ 10
4.5 Serial Interfaces ............................................................................................................................. 10
4.5.1 UART0-2 .................................................................................................................................. 10
4.5.2 SPI0/1 ...................................................................................................................................... 10
4.5.3 I2C0/1 ...................................................................................................................................... 11
4.5.4 McBSP0/1 ................................................................................................................................ 11
4.5.5 McASP ..................................................................................................................................... 11
4.6 USB Interface ................................................................................................................................. 11
4.7 ADC/Touch Interface...................................................................................................................... 11
4.8 General Purpose I/O (GPIO) .......................................................................................................... 11
4.9 Expansion/Feature Options ........................................................................................................... 12
System Integration ............................................................................................................................. 13
5.1 Custom Configuration .................................................................................................................... 13
5.2 Resets ............................................................................................................................................ 13
5.2.1 Master Reset (MSTR_nRST)—Reset Input ............................................................................ 13
5.2.2 SOM Reset (RESETOUTn)—Reset output ............................................................................. 13
5.3 Interrupts ........................................................................................................................................ 14
5.4 JTAG Debugger Interface .............................................................................................................. 14
5.5 Power Management ....................................................................................................................... 14
5.5.1 System Power Supplies ........................................................................................................... 14
5.5.1.1 5V ...................................................................................................................................... 14
5.5.1.2 USB0_VBUS ..................................................................................................................... 14
5.5.1.3 MAIN_BATT_IN ................................................................................................................ 15
5.5.1.4 VRTC_IN ........................................................................................................................... 15
5.5.2 Dual Voltage I/O ...................................................................................................................... 15
5.5.3 System Power Management ................................................................................................... 15
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3
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OMAP-L138 SOM-M1 Hardware Specification
5.5.4 Microcontroller ......................................................................................................................... 16
5.6 ESD Considerations ....................................................................................................................... 16
6 Memory & I/O Mapping ....................................................................................................................... 17
7 Pin Descriptions & Functions ........................................................................................................... 18
7.1 J1 Connector 100-Pin Descriptions ............................................................................................... 18
7.2 J2 Connector 100-Pin Descriptions ............................................................................................... 24
7.3 J3 Connector 100-Pin Descriptions ............................................................................................... 28
Appendix A: OMAP-L138 SOM-M1 Mechanical Drawing ...................................................................... 32
Appendix B: Example OMAP-L138 SOM-M1 Retention Methods ......................................................... 34
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