Texas Instruments Stellaris LM3S9D90 User manual

EK-LM3S9D90-00 Copyright ©2011 Texas Instruments
User’s Manual
Stellaris® LM3S9D90 Evaluation Kit User’s
Manual

2July 5, 2011
Copyright
Copyright © 2011 Texas Instruments, Inc. All rights reserved. Stellaris and StellarisWare are registered trademarks of Texas Instruments. ARM and
Thumb are registered trademarks, and Cortex is a trademark of ARM Limited. Other names and brands may be claimed as the property of others.
Texas Instruments
108 Wild Basin, Suite 350
Austin, TX 78746
http://www.ti.com/stellaris

July 5, 2011 3
Table of Contents
Chapter 1: Stellaris® LM3S9D90 Evaluation Kit Overview ...........................................................................7
Kit Contents........................................................................................................................................................8
Using the EK-LM3S9D90....................................................................................................................................8
Features..............................................................................................................................................................8
Chapter 2: Hardware Description..................................................................................................................11
Evaluation Board ..............................................................................................................................................11
Functional Description ..................................................................................................................................11
In-Circuit Debug Interface Board ......................................................................................................................14
Functional Description ..................................................................................................................................14
Chapter 3: Software Development ................................................................................................................17
Software Description.........................................................................................................................................17
Source Code.....................................................................................................................................................17
Tool Options .....................................................................................................................................................17
Programming the EK-LM3S9D90 Board...........................................................................................................17
Appendix A: Schematics................................................................................................................................19
Appendix B: Connection Details...................................................................................................................25
Component Locations.......................................................................................................................................25
Board Dimensions ............................................................................................................................................26
Board Connectivity............................................................................................................................................27
References .......................................................................................................................................................27
Appendix C: Microcontroller GPIO Assignments........................................................................................29

4July 5, 2011
List of Figures
Figure 1-1. LM3S9D90 Evaluation Board..........................................................................................................7
Figure 1-2. In-Circuit Debug Interface Board.....................................................................................................7
Figure 2-1. EK-LM3S9D90 Evaluation Board Block Diagram..........................................................................11
Figure 2-2. GPIO Pads....................................................................................................................................12
Figure 2-3. JTAG/SWD Connector..................................................................................................................12
Figure 2-4. PWR/UART Connector..................................................................................................................13
Figure 2-5. In Circuit Debug (ICDI) Board Block Diagram...............................................................................14
Figure 2-6. JTAG/SWD Connector J1 .............................................................................................................15
Figure 2-7. JTAG/SWD Connector J3 .............................................................................................................15
Figure 2-8. PWR/UART Connector..................................................................................................................15
Figure B-1. EK-LM3S9D90 Evaluation Board Component Locations..............................................................25
Figure B-2. BD-ICDI Board Component Locations ..........................................................................................25
Figure B-3. EK-LM3S9D90 Evaluation Board Dimensions ..............................................................................26
Figure B-4. In-Circuit Debug Interface Board Dimensions...............................................................................26
Figure B-5. ICDI – EK-LM3S9D90 Board Connectivity....................................................................................27

July 5, 2011 5
List of Tables
Table C-1. EK-LM3S9D90 Evaluation Board GPIO Usage.............................................................................29

6July 5, 2011

July 5, 2011 7
Stellaris® LM3S9D90 Evaluation Kit Overview
Texas Instruments' Stellaris® LM3S9D90 Evaluation Board Kit (EK-LM3S9D90) is a low-cost
platform for evaluation of the LM3S9D90 microcontroller. The kit includes two boards, the
EK-LM3S9D90 evaluation board, and the In-Circuit Debug Interface (BD-ICDI) board.
The EK-LM3S9D90 board includes the LM3S9D90 ARM® Cortex™-M3 Microcontroller, a 10/100
Mbit Ethernet port, a full-speed USB-OTG port, connectors for inteface to the BD-ICDI board, and
oversized pads for easy connection to the microcontroller GPIO ports.
The BD-ICDI board is a USB full-speed JTAG/SWD debugger board. It includes a USB miniB
connector for connection to a USB PC port, and two shrouded header connectors for connection to
the EK-LM3S9D90 board.
Development of software for the EK-LM3S9D90 is simplified by using Texas Instruments’
comprehensive StellarisWare® peripheral driver library and ARM development tools from our tools
partners. The Stellaris® LM3S9D90 Evaluation Board Kit includes the two boards described, a
documentation CD, and cables. All design files are provided on the EK-LM3S9D90 CD.
Figure 1-1. LM3S9D90 Evaluation Board
Figure 1-2. In-Circuit Debug Interface Board
CHAPTER 1

Stellaris® LM3S9D90 Evaluation Kit Overview
8July 5, 2011
Kit Contents
The EK-LM3S9D90 evaluation kit comes with the following:
EK-LM3S9D90 evaluation board
In-Circuit Debug Interface (BD-ICDI) board
–Connects to USB port on PC and to 10-pin, fine-pitch ARM JTAG connector on the
EK-LM3S9D90 evaluation board
–Secondary 8-pin Power/UART connector provides power and virtual comm-port capability
to the EK-LM3S9D90 evaluation board.
Cables
–USB miniB to USB-A cable
–USB-OTG to USB-A cable
–10-pin ribbon cable for JTAG/SWD connection
–8-pin ribbon cable for Power/UART connection
CD containing:
–A supported version of one of the following (including a toolchain-specific Quickstart
guide):
• Keil™ RealView® Microcontroller Development Kit (MDK-ARM)
• IAR Embedded Workbench
• Sourcery CodeBench development tools
• Code Red Technologies development tools
• Texas Instruments’ Code Composer Studio™ IDE
–Complete documentation
–Quickstart application source code
–Stellaris® Firmware Development Package with example source code
Using the EK-LM3S9D90
The recommended steps for using the EK-LM3S9D90 evaluation kit are:
1. Follow the Quickstart guide included in the kit. The Quickstart guide will help get the
EK-LM3S9D90 Evaluation Board up and running in minutes.
2. Use your preferred ARM tool-chain and the Stellaris Peripheral Driver Library to
develop an application. Software applications are loaded using the BD-ICDI board. See
Chapter 3, “Software Development,” for the programming procedure. The StellarisWare
Peripheral Driver Library Software Reference Manual contains specific information on
software structure and function.
3. Customize and integrate the hardware to suit an end application. This user's manual is an
important reference for understanding circuit operation and completing hardware modification.
Features
The EK-LM3S9D90 evaluation kit provides the following features:

Stellaris® LM3S9D90 Evaluation Kit User’s Manual
July 5, 2011 9
LM3S9D90 high-performance Stellaris microcontroller and large memory
–32-bit ARM® Cortex™-M3 core
–512 KB single-cycle Flash memory, 96 KB single-cycle SRAM
Ethernet 10/100 port with two LED indicators
USB 2.0 Full-Speed OTG port
Virtual serial communications port capability
Oversized board pads for GPIO access
User pushbutton and LED
Detachable ICDI board can be used for debugging other Stellaris boards
Easy to customize
–Includes full source code, example applications, and design files
–Develop using tools supporting FastMATH from Keil, IAR, Code Sourcery, and Code Red
(using a Stellaris evaluation kit or preferred ARM Cortex-M3 debugger)
–Supported by Texas Instruments’ StellarisWare peripheral driver library

Stellaris® LM3S9D90 Evaluation Kit Overview
10 July 5, 2011

July 5, 2011 11
Hardware Description
The EK-LM3S9D90 evaluation kit contains two boards: the EK-LM3S9D90 evaluation board and
the BD-ICDI JTAG debug board as described in more detail in this chapter.
Evaluation Board
The EK-LM3S9D90 evaluation board uses the Stellaris® LM3S9D90 microcontroller and includes
a 10/100 Ethernet port and a USB 2.0 full-speed OTG port. The board is intended for use with the
ICDI board, but can be used as a standalone board as well. Figure 2-1 shows the block diagram.
Figure 2-1. EK-LM3S9D90 Evaluation Board Block Diagram
Functional Description
Microcontroller, Reset, GPIO Pads, and JTAG (Schematic page 20)
Microcontroller
The evaluation board uses the Stellaris LM3S9D90 microcontroller. A 16 MHz crystal provides the
main oscillator clock which can directly drive the ARM core clock or can drive an internal PLL to
increase the core clock up to 80 MHz. A 25 MHz crystal is used for the Ethernet clock and a
4.194304 MHz crystal is used for the real-time clock.
The LM3S9D90 microcontroller has an internal LDO voltage regulator that supplies power for
internal use. This rail requires only three capacitors for decoupling and is not connected to any
other circuits.
Stellaris
LM3S9D90
Ethernet 10/100
5V
GPIOs
USB – OTG
3.3V
Regulator
USB Power
Switch
JTAG/SWD
PWR/UART
UART0
BOARD PADs
RESET
DPDT
VBUS
4.19MHz
25MHz
16MHz
RTCMOSC
Ethernet
USER LED
USER PUSHBUTTON
USB
JTAG
CHAPTER 2

Hardware Description
12 July 5, 2011
Reset
A reset switch and R-C network connects to the microcontroller’s RSTn input. The reset signal is
also connected to the JTAG/SWD connector J1 to allow reset control from the debugger.
GPIO Pads
Four groups of oversized board pads with a 0.1” spacing provide access to GPIO signals and
standard 0.1” pitch headers can be soldered to these pads. Pads are labeled with the
corresponding GPIO signal, and pads with no labels are unconnected. Note that GPIO signals
required for operation of the Ethernet port, USB port, and JTAG port are reserved for board use
and are not available on these pads. Figure 2-2 shows the pad groups.
Figure 2-2. GPIO Pads
GPIO Jumpers
Some of the GPIO signals used by the board are connected to board jumpers and can be
disconnected to provide additional user GPIOs. GPIOs PA0/PA1/PB4/PD0/PF2/PF3 are
connected to jumpers JR1-JR6 respectively. Each signal can be freed by cutting the trace of the
corresponding jumper (cut at white line on silkscreen). The jumper pads have the same footprint
as an 0603 SMT resistor. To reconnect a previously cut jumper, solder a 0 ohm resistor to the
corresponding jumper footprint.
JTAG/SWD
The JTAG/SWD connector J1 is used for program download and debug. This is a 2x5 fine pitch
(0.050”) ARM JTAG connector, see (Figure 2-3) for signal definition. The LM3S9D90
microcontroller supports JTAG debug, Serial Wire Debug (SWD), and Serial Wire Out (SWO)trace
with this connector. The ICDI board connects via a 10-wire ribbon cable to this connector.
Figure 2-3. JTAG/SWD Connector
GPIO Pads – Top left
SHDN
VBAT
WAKE
PD1 PD0 PD2 PD3 PD4 PD5 PD6 PD7
PC5 PC4 PC7 PC6
HIB
GPIO Pads – Bottom left
PA4
PA7
PA6
5VR 5V PB2 PB3 PB4 PB5 PB6 PB7
PA1 PA0 PA3 PA2 PA5
GND
GND
GPIO Pads – Top right
VBUS PG7 PH0 PH1 PH2 PH5 PH6 PH7
PJ1 PJ0 PJ2 PG0
PG1
GPIO Pads – Bottom right
PE4
PE7
PE6
PF1 PF0 PF2PF3 PF4 PF5
PE1 PE0 PE3 PE2 PE5 3.3V
GND
TMS/SWDIO
TCK/SWCLK
TDO/SWO
TDI
RSTn GND
GND
GND
3.3V
N/C
12
910
In
In
Out
I/O
In Out

Stellaris® LM3S9D90 Evaluation Kit User’s Manual
July 5, 2011 13
PWR/UART
The PWR/UART connector J2 is used to provide 5 V power from the ICDI board and also to
connect the LM3S9D90 UART0 signals. This is a 2x4 fine pitch (0.050") connector, see
(Figure 2-4) for signal definition. The UART0 signals are connected to GPIO jumpers JR1 and JR2
and can be disconnected from connector J2 if required, see “GPIO Jumpers” on page 12. The
ICDI board connects via an 8-wire ribbon cable to this connector.
Figure 2-4. PWR/UART Connector
Ethernet, USB, Power and Miscellaneous (Schematic page 21)
Page 2 of the schematics contains the Ethernet RJ45 connector, USB power switch and USB OTG
connector, 3.3 V regulator, and power switch selector.
Ethernet Port
The on-board RJ45 connector provides a 10/100 base T Ethernet port. The RJ45 connector
includes integrated LEDs and magnetics. The LEDs are connected to GPIO jumpers JR4 and JR5
and can be disconnected from the RJ45 connector if required, see GPIO Jumpers section.
USB Port
The on-board USB microAB connector provides a USB 2.0 full-speed port. To use as an On-The-
Go (OTG) port, the power selector switch SW3 lever must be set to EXT. This selects an external
5 V power source to provide power to the board and the USB power switch. If the SW3 lever is set
to USB, power to the board is received from USB, the on-board USB power switch output is
disconnected from USB, and the board can only be used as a USB device. When using the
USB-OTG port in Host mode, the current provided to a USB device should be limited to 100 mA or
less when powered from the ICDI board. If powered from the 5 V test pad, then this can be
increased to 500 mA.
Board Power
The board requires 5 V for operation, and switch SW3 is used to select the power source. If the
switch lever is moved towards the USB label on the board, power is received from the USB
connector. If the switch lever is moved towards the EXTernal board label, the board is powered
from the PWR/UART connector and the ICDI board provides power to this connector. DC regulator
U2 generates 3.3 V for powering the board circuits and includes power indicator LED D1.
User Devices
Pushbutton switch SW2 and LED D2 are available for the user and connected to PB4 and PD0
respectively. These GPIOs are connected to GPIO jumpers JR3 and JR4 and can be
disconnected from SW2 and D2 if required, see GPIO Jumpers section.
VCP_TX
VCP_RX GND
GND
DBG1
12
78
DBG2
5V 5V
In
Out
Out
Out

Hardware Description
14 July 5, 2011
In-Circuit Debug Interface Board
The ICDI board is used to download and debug programs on the EK-LM3S9D90 evaluation board,
but can also be used for debug of other Stellaris boards. A block diagram is shown in Figure 2-5.
Figure 2-5. In Circuit Debug (ICDI) Board Block Diagram
Functional Description
USB to JTAG/SWD, Power (Schematic page 22)
USB
An FTDI USB to serial protocol chip is used for the USB 2.0 full-speed device controller. This is
connected to a USB miniB connector and to a set of buffers/multiplexers. A 1-kbit serial EEPROM
contains USB configuration data which is read at power up.
Power
The board receives 5 V power from the USB bus. A DC regulator generates 3.3 V for on-board
circuits, when on LED D1 (POWER) is lit on.
Headers
Three headers are on-board, a 10-pin JTAG/SWD header J1, an 8-pin PWR/UART header J2, and
an optional 20-pin JTAG/SWD header J3. The 10-pin and 8-pin headers are used to connect to the
EK-LM3S9D90 evaluation board.
JTAG/SWD
JTAG/SWD connector J1 connects to the EK-LM3S9D90 evaluation board with a ribbon cable for
program download and debug. This is a 2x5 fine pitch (0.050”) ARM JTAG connector, see
(Figure 2-6) for signal definition.The ICDI supports JTAG debug, SWD (Serial Wire Debug), and
SWO (Serial Wire Out) trace with this connector.
Optional JTAG/SWD connector J3 is a 2x10 standard pitch (0.1”) ARM JTAG connector directly
connected to J1, see (Figure 2-7) for signal definition. This allows the ICDI to connect to targets
that use a 2x10 connector. It also allows the use of an external 2x10 debugger on targets with the
fine pitch connector, including the EK-LM3S9D90. The signal direction shown for J1 and J3
FTDI
PortA
3.3V
Regulator
USB
RESET
VBUS 6MHz
OSC
JTAG/SWD
PWR/UART
JTAG/SWD
MUX
EEPROM
PortB
POWER
2x4
2x10
JTAG/SWD
2x5
ACTIVE
DEBUG
USB

Stellaris® LM3S9D90 Evaluation Kit User’s Manual
July 5, 2011 15
applies when the ICDI is used as the JTAG/SWD debugger and LED D2 (DEBUG ACTIVE) is lit
on. In this case only one of the two connectors J1/J3 should be used.
The ICDI can also be used as a 20-pin to 10-pin adapter for external JTAG debuggers. Note that
the DEBUG ACTIVE LED must be off before connecting any external JTAG debuggers.
Figure 2-6. JTAG/SWD Connector J1
Figure 2-7. JTAG/SWD Connector J3
Pushbutton
Pushbutton SW1 (RESET) is provided to manually generate the SRSTn signal to the target
device. The SRSTn signal can also be generated under program control.
PWR/UART
The PWR/UART connector J2 connects to the EK-LM3S9D90 evaluation board with a ribbon
cable and provides 5 V power and a virtual communications port connection. This is a 2 x 4 fine
pitch (0.050”) connector, see (Figure 2-8) for signal definition. Signals DBG1/DBG2 are reserved.
Figure 2-8. PWR/UART Connector
TMS/SWDIO
TCK/SWCLK
TDO/SWO
TDI
SRSTn GND
GND
GND
VSENSE
N/C
12
910
In
Out
Out
Out
In
I/O
TMS/SWDIO
TCK/SWCLK
TDO/SWO
TDI
SRSTn
12
1920
GND
GND
GND
GND
GND
GND
GND
GND
GND
N/C
N/C
N/C
N/C
N/C VSENSE In
Out
Out
Out
In
I/O
VCP_TX
VCP_RX GND
GND
DBG1
1
2
78
DBG2
5V 5V
In
Out
Out
Out

Hardware Description
16 July 5, 2011
JTAG / SWD Multiplexer (Schematic page 23)
Buffers
A set of tri-state buffers is used to multiplex JTAG and SWD signals, and also multiplex the UART
VCP_TX signal with the SWO signal. LED D2 (DEBUG ACTIVE) is lit on when these buffers are
enabled. To avoid signal contention, external JTAG debuggers should not be connected when
DEBUG ACTIVE is on.

July 5, 2011 17
Software Development
This chapter provides general information on software development as well as instructions for
Flash memory programming.
Software Description
The software provided with the EK-LM3S9D90 provides access to all of the peripheral devices
supplied in the design. The StellarisWare® Peripheral Driver Library is used to operate the on-chip
peripherals.
The software includes a set of example applications that utilize the StellarisWare Peripheral Driver
Library. These applications demonstrate the capabilities of the LM3S9D90 microcontroller, as well
as providing a starting point for the development of the final application for use on the
EK-LM3S9D90.
Source Code
The complete source code is included on the EK-LM3S9D90 CD. Refer to the Quickstart Guide for
a detailed description of hardware setup and how to install the source code. The source code and
binary files are installed in the DriverLib tree.
Tool Options
The source code installation includes directories containing projects and/or makefiles for the
following tool-chains:
Keil ARM RealView® Microcontroller Development System
IAR Embedded Workbench for ARM
CodeSourcery G++
Code Red Technology Red Suite
Generic Gnu C compiler
Evaluation versions of these tools may be downloaded from www.ti.com/stellaris. Due to code size
restrictions, the evaluation tools may not build all example programs. A full license is necessary to
re-build or debug all examples.
Instructions on installing and using each of the evaluation tools can be found in the Quickstart
guides (for example, Quickstart-Keil, Quickstart-IAR) which are available for download from the
evaluation kit section of our web site at www.ti.com/stellaris.
For detailed information on using the tools refer to the documentation included in the tool chain
installation or visit the website of the tools supplier.
Programming the EK-LM3S9D90 Board
The EK-LM3S9D90 software package includes pre-built binaries for each of the example
applications. If you installed DriverLib to the default installation path of C:/DriverLib, you can find
the example applications in “C:/DriverLib/boards/ek-tempest”. The ICDI board is used along with
Stellaris LM Flash Programmer tool to program applications on the EK-LM3S9D90 board.
CHAPTER 3

Software Development
18 July 5, 2011
To program example applications into the EK-LM3S9D90 evaluation board using the ICDI
board:
1. Install LM Flash Programmer on a Windows PC.
2. Connect the 10-wire ribbon cable to the 10-pin header on the ICDI board and to the 10-pin
header on the EK-LM3S9D90 board. The red stripe on the ribbon cable should be facing the
bottom of the connectors (see Figure B-5 on page 27).
3. Connect the 8-wire ribbon cable to the 8-pin header on the ICDI board and to the 8-pin header
on the EK-LM3S9D90 board. The red stripe on the ribbon cable should be facing the bottom of
the connectors (see Figure B-5 on page 27).
4. Verify that slide switch SW3 on the EK-LM3S9D90 board is set to EXTernal.
5. Connect the USB cable A-plug to an available port on the PC and the miniB-plug to the ICDI
board.
6. Verify that POWER LED D1 on the ICDI board is lit and POWER LED D1 on the
EK-LM3S9D90 board is also lit.
7. Run LM Flash Programmer.
8. In the Configuration tab, use the Quick Set control to select LM3S9D90 Evaluation Board.
9. Move to the Program tab and click the Browse button. Navigate to the example applications
directory (the default location is “C:/DriverLib/boards/ek-tempest/).
10. Each example application has its own directory. Navigate into the example directory that you
want to load and then into the directory which contains the binary (*.bin) files. Select the binary
file and click Open.
11. Set the “Erase Method” to “Erase Necessary Pages” and check the “Verify After Program” box.
12. Next, click the Program button to start the Erase, Download and Verify process. The DEBUG
ACTIVE LED (D2) on the ICDI will turn on at this time.
13. Program execution will start once Verify is complete.
The EK-LM3S9D90 design uses a Stellaris® microcontroller to handle networking, USB-OTG, and
peripheral functions. The entire circuit is built on a compact four-layer printed circuit board. All
design files are provided on the EK-LM3S9D90 CD.

July 5, 2011 19
Schematics
This section contains the schematics for the EK-LM3S9D90 evaluation board and also the
BD-ICDI debug board.
EK-LM3S9D90 Evaluation Board
Microcontroller, Reset, and Headers on page 20
Ethernet, USB, and Power on page 21
BD-ICDI Board
USB to JTAG, SWD, Headers, and Power on page 22
JTAG/SWD Multiplexer on page 23
APPENDIX A

July 5, 2011 20
Microcontroller, Reset, and Headers
1
1
2
2
3
3
4
4
5
5
6
6
D D
C C
B B
A A
Document Number: Rev
SheetDate: of
6/17/2011 12
C
Designer:
Drawn by:
Approved:
Drawing Title:
Page Title:
Size
Arnaldo Cruz
Arnaldo Cruz
*0001
EK-LM3S9B90 and EK-LM3S9D90 Evaluation Board
Tempest, Reset, Test Pads
B
108 Wild Basin Rd.
Suite 350
Austin, TX 78746
TI AEC - Austin
C18
18pF
C17
18pF
C16
18pF
C15
18pF
RSTn
OSCin
OSCout
XTALN
XTALP
R8
12.4K
R7
9.1k
USBDP
USBDM
3.3V
C22
1uF
C19
0.1uF
C7
0.1uF C8 0.1uF C9 0.1uF C10 0.1uF
C11
0.1uF
C6
1uF
C13
0.1uF
C20
0.1uF
C23
0.1uF
XOSC0
XOSC1
R9 1M
C5
18pF
C4
18pF
Y3
4.194304 MHz
ETH_TXOP
ETH_TXON
ETH_MDIO
ETH_LED0
ETH_LED1
ETH_RXIP
ETH_RXIN
USBPWR
USBFLT
USBID
3.3V
TMS
TCK
TDO
TDI
C1
0.1uF
VBUS
PF4
PB4
PB5
PB6
PB7
PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD7
PF0
PF1
PB2
PB3
PH0
PH1
PH2
PH5
PH6
PH7
PJ0
PJ1
PJ2 WAKEn
PG0
PG1
PE1
PE2
PE3
PE4
PE5
PE6
PE7
PC4
PC5
PC6
PC7
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PG7
3.3V
R6
10K
C2
0.1uF
R4 10K
PC0
PC1
PC2
PC3
R3 10K
R2 10K
R1 10K PB2
PB3
PB4
PB5
PB6
PB7
PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD7
PF0
PF1
PF2
PF3
PF4
PF5
PH0
PH1
PH2
PH5
PH6
PH7
PE0
PE1
PE2
PE3
PE4
PE5
PE6
PE7
PG0 PG1
PG7
1 4
2 3
RESET
SW1
PJ0
PJ1
PJ2
PE0
PF5
VBAT
RSTn
3.3V
R5
10K
HIBn
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PC4
PC5
PC6
PC7
WAKEn
VBAT
HIBn
LM3S9B90/LM3S9D90
PA0/U0RX
26
PA1/U0TX
27
PA2/SSI0CLK
28
PA3/SSI0FSS
29
PA4/SSI0RX
30
PA5/SSI0TX
31
PC0/TCK/SWCLK
80
PC1/TMS/SWDIO
79
PC2/TDI
78
PC3/TDO/SWO
77
PC4
25
PC5
24
PC6
23
PC7
22
PD0 10
PD1 11
PD2 12
PD3 13
PD4 97
PD5 98
PD6 99
PD7 100
GND
9
GND
21
ERBIAS
33
RST
64
LDO 7
OSC0
48
OSC1
49
PB0/USB0ID 66
PB1/USB0VBUS 67
PB2/I2C0SCL 72
PB3/I2C0SDA 65
PB4 92
PB5 91
PB6 90
PB7 89
PE0
74
PE1
75
PE2
95
PE3
96
PE4
6
PE5
5
PA6
34
PA7
35
PE6
2
PE7
1
PF0 47
PF1 61
PF2/LED1 60
PF3/LED0 59
MDIO 58
TXON 46
TXOP 43
PF4 42
PG0
19
PG1
18
XTALNPHY
17
XTALPPHY
16
PF5
41
RXIP
40
RXIN
37
PG7
36
PH0 86
PH1 85
PH2 84
PH3/USB0EPEN 83
AVDD 3 AGND
4
VDD33 8
VDD33 20
VDD33 32
VDD33 44
VDD33 56
VDD33 68
VDD33 81
VDD33 93
GND
45
GND
57
GND
69
GND
82
GND
94
CVDD 38
CVDD 88
HIB
51
PH4/USB0PFLT 76
USB0DP 71
USB0DM 70
USB0RBIAS 73
PH5 63
PH6 62
PH7 15
PJ0 14
PJ1 87
PJ2 39
WAKEn 50
XOSC0 52
XOSC1 53
GND 54
VBAT 55
U1 5V
1 2
Y1
16.000 MHz
C12
0.1uF C14 0.1uF
SHDNn
VBUS
3.3V
R24
10K
1 2
Y2
25.000 MHz
JTAG/SWD
1
3
5
7
9
2
4
6
8
10
J1
HDR 2X5-MH-SHRD
VCP_RX
5V
PWR/UART
1
3
5
7
2
4
6
8J2
HDR 2X4-MH-SHRD
DBG1DBG2
TP1
TP2
TP3
TP4
TP5
TP6
TP7
TP8
TP9
TP10
TP11
TP12
TP13
TP14
TP15
TP16
TP17
TP18
TP19
TP20
TP21
TP22
TP23
TP24
TP25
TP26
TP27
TP28
TP29
TP30
TP31
TP32
TP33
TP34
TP35
TP36
TP37
TP38
TP39
TP40
TP41
TP42
TP43
TP44
TP45
TP46
TP47
TP48
TP49
TP50
TP51
TP52
TP53
TP54
TP55
TP56
TP57
TP58
TP59
TP60
TP61
TP62
TP63
TP64
TP65
TP66
TP67
TP68
FB1
120ohm @ 100 MHz
PA0
PA1
VCP_RX
VCP_TX
PB4
PD0
USR_PBn
USR_LED
JR1
JR2
JR3
JR4
VCP_TX
JR5
JR6
PF2
PF3
PF2
PF3
C3
0.1uF
3.3V
Revision History
Revision
A2/24/2009 First release for prototypes.
Date Description
B4/15/2009 Released to production.
R23 10
CVDD
5VR
C1/21/2010 DC regulators U2 and U4 replaced for TI parts.
6/17/2011 Add option to install either LM3S9B90 or LM3S9D90