Texas Instruments Tiva C Series User manual

Tiva™ C Series TM4C1294 Connected
LaunchPad Evaluation Kit
EK-TM4C1294XL
User's Guide
Literature Number: SPMU365C
March 2014–Revised October 2016

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Contents
Contents
1 Board Overview ................................................................................................................... 4
1.1 Kit Contents................................................................................................................... 5
1.2 Using the Connected LaunchPad ......................................................................................... 5
1.3 Features....................................................................................................................... 5
1.4 BoosterPacks................................................................................................................. 6
1.5 Energīa........................................................................................................................ 6
1.6 Specifications................................................................................................................. 6
2 Hardware Description........................................................................................................... 7
2.1 Functional Description ...................................................................................................... 7
2.1.1 Microcontroller....................................................................................................... 7
2.1.2 Ethernet Connectivity............................................................................................... 8
2.1.3 USB Connectivity ................................................................................................... 8
2.1.4 Motion Control....................................................................................................... 8
2.1.5 User Switches and LED's.......................................................................................... 8
2.1.6 BoosterPacks and Headers ....................................................................................... 9
2.2 Power Management........................................................................................................ 20
2.2.1 Power Supplies.................................................................................................... 20
2.2.2 Low Power Modes ................................................................................................ 21
2.2.3 Clocking ............................................................................................................ 21
2.2.4 Reset................................................................................................................ 21
2.3 Debug Interface............................................................................................................. 21
2.3.1 In-Circuit Debug Interface (ICDI)................................................................................ 21
2.3.2 External Debugger ................................................................................................ 22
2.3.3 Virtual COM Port .................................................................................................. 22
3 Software Development........................................................................................................ 23
3.1 Software Description....................................................................................................... 23
3.2 Source Code................................................................................................................ 23
3.3 Tool Options ................................................................................................................ 23
3.4 Programming the Connected LaunchPad............................................................................... 24
4 References, PCB Layout, and Bill of Materials ....................................................................... 25
4.1 References.................................................................................................................. 25
4.2 Component Locations ..................................................................................................... 26
4.3 Bill of Materials ............................................................................................................. 27
5 Schematic ......................................................................................................................... 30
Revision History.......................................................................................................................... 31

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List of Figures
List of Figures
1-1. Tiva C Series Connected LaunchPad Evaluation Board ............................................................... 4
2-1. Tiva Connected LaunchPad Evaluation Board Block Diagram........................................................ 7
2-2. Default Jumper Locations................................................................................................. 20
4-1. Connected LaunchPad Dimensions and Component Locations..................................................... 26
List of Tables
1-1. EK-TM4C1294XL Specifications........................................................................................... 6
2-1. BoosterPack 1 GPIO and Signal Muxing................................................................................. 9
2-2. BoosterPack 2 GPIO and Signal Muxing ............................................................................... 12
2-3. X11 Breadboard Adapter Odd-Numbered Pad GPIO and Signal Muxing .......................................... 16
2-4. X11 Breadboard Adapter Even-Numbered Pad GPIO and Signal Muxing......................................... 17
4-1. Connected LaunchPad Bill of Materials................................................................................. 27

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Board Overview
Tiva is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.
Chapter 1
SPMU365C–March 2014–Revised October 2016
Board Overview
The Tiva™ C Series TM4C1294 Connected LaunchPad Evaluation Board (EK-TM4C1294XL) is a low-cost
evaluation platform for ARM® Cortex™-M4F-based microcontrollers. The Connected LaunchPad design
highlights the TM4C1294NCPDT microcontroller with its on-chip 10/100 Ethernet MAC and PHY, USB 2.0,
hibernation module, motion control pulse-width modulation and a multitude of simultaneous serial
connectivity. The Connected LaunchPad also features two user switches, four user LEDs, dedicated reset
and wake switches, a breadboard expansion option and two independent BoosterPack XL expansion
connectors. The pre-programmed quickstart application on the Connected LaunchPad also enables
remote monitoring and control of the evaluation board from an internet browser anywhere in the world.
The web interface is provided by 3rd party, Exosite. Each Connected LaunchPad is enabled on the
Exosite platform allowing users to create and customize their own Internet-of-Things applications.
Figure 1-1 shows a photo of the Connected LaunchPad with key features highlighted.
Figure 1-1. Tiva C Series Connected LaunchPad Evaluation Board

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Board Overview
1.1 Kit Contents
The Connected LaunchPad Evaluation Kit contains the following items:
• Tiva™ C Series TM4C1294 Evaluation Board (EK-TM4C1294XL)
• Retractable Ethernet cable
• USB Micro-B plug to USB-A plug cable
•README First document
1.2 Using the Connected LaunchPad
The recommended steps for using the Connected LaunchPad Evaluation Kit are:
1. Follow the README First document included in the kit. The README First helps you get the
Connected LaunchPad up and running in minutes. Within just a few minutes you can be controlling and
monitoring the Connected LaunchPad through the internet using Exosite and the pre-programmed
quickstart application.
2. Experiment with BoosterPacks. This evaluation kit conforms to the latest revision of the BoosterPack
pinout standard. It has two independent BoosterPack connections to enable a multitude of expansion
opportunities.
3. Take the first step towards developing your own applications. The Connected LaunchPad is
supported by TivaWare for C Series. After installing TivaWare, look in the installation directory for
examples\boards\ek-tm4c1294xl. You can find pre-configured example applications for this board as
well as for this board with selected BoosterPacks. Alternately, use Energīa for a wiring framework-
based cross-platform, fast-prototyping environment that works with this and other TI LaunchPads. See
Chapter 3 of this document for more details about software development. TivaWare can be
downloaded from the TI website at http://www.ti.com/tool/sw-tm4c. Energīa can be found at
http://energia.nu.
4. Customize and integrate the hardware to suit your end application. This evaluation kit can be
used as a reference for building your own custom circuits based on Tiva C microcontrollers or as a
foundation for expansion with your custom BoosterPack or other circuit. This manual can serve as a
starting point for this endeavor.
5. Get Trained. You can also download hours of written and video training materials on this and related
LaunchPads. Visit the Tiva C Series LaunchPad Workshop Wiki for more information.
6. More Resources. See the TI MCU LaunchPad web page for more information and available
BoosterPacks. (http://www.ti.com/tiva-c-launchpad)
1.3 Features
Your Connected LaunchPad includes the following features:
• Tiva TM4C1294NCPDTI microcontroller
• Ethernet connectivity with fully integrated 10/100 Ethernet MAC and PHY Motion Control PWM
• USB 2.0 Micro A/B connector
• 4 user LEDs
• 2 user buttons
• 1 independent hibernate wake switch
• 1 independent microcontroller reset switch
• Jumper for selecting power source:
– ICDI USB
– USB Device
– BoosterPack
• Preloaded Internet-of-Things Exosite quickstart application
• I/O brought to board edge for breadboard expansion
• Two independent BoosterPack XL standard connectors featuring stackable headers to maximize
expansion through BoosterPack ecosystem

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Board Overview
– For a complete list of BoosterPacks, see the TI MCU LaunchPad web page:
http://www.ti.com/launchpad
1.4 BoosterPacks
The Connected LaunchPad provides an easy and inexpensive way to develop applications with the
TM4C1294NCPDTI microcontroller. BoosterPacks are add-on boards that follow a pin-out standard
created by Texas Instruments. The TI and third-party ecosystem of BoosterPacks greatly expands the
peripherals and potential applications that you can easily explore with the Connected LaunchPad.
You can also build your own BoosterPack by following the design guidelines on TI’s website. Texas
Instruments even helps you promote your BoosterPack to other members of the community. TI offers a
variety of avenues for you to reach potential customers with your solutions.
1.5 Energīa
Energīa is an open-source electronics prototyping platform started in January of 2012 with the goal of
bringing the Wiring and Arduino framework to the TI LaunchPad community. Energīa includes an
integrated development environment (IDE) that is based on Processing.
Together with Energīa, LaunchPads can be used to develop interactive objects, taking inputs from a
variety of switches or sensors, and controlling a variety of lights, motors, and other physical outputs.
LaunchPad projects can be stand-alone (only run on the target board, i.e. your LaunchPad), or they can
communicate with software running on your computer (Host PC). Energīa projects are highly portable
between supported LaunchPad platforms. Projects written for your Connected LaunchPad can be run on
other LaunchPads with little or no modifications.
More information is available at http://energia.nu.
1.6 Specifications
Table 1-1 summarizes the specifications for the Connected LaunchPad.
Table 1-1. EK-TM4C1294XL Specifications
Parameter Value
Board Supply Voltage
4.75 VDC to 5.25 VDC from one of the following sources:
• Debug USB U22 (ICDI) USB Micro-B cable connected to PC or other compatible
power source.
• Target USB (U7) USB Micro-B cable connected to PC or other compatible power
source.
• BoosterPack 1 (X8-4)
• BoosterPack 2 (X6-4)
• Breadboard expansion header (X11-2 or X11-97).
See schematic symbol JP1 for power input selection.
Dimensions 4.9 in x 2.2 in x .425 in (12.45 cm x 5.59 cm x 10.8 mm) (L x W x H)
Break-out Power Output
• 5 VDC to BoosterPacks, current limited by TPS2052B. Nominal rating 1 Amp.
Board input power supply limitations may also apply.
• 3.3 VDC to BoosterPacks, limited by output of TPS73733 LDO. This 3.3-V plane is
shared with on-board components. Total output power limit of TPS73733 is 1
Amp.
RoHS Status Compliant

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Hardware Description
Chapter 2
SPMU365C–March 2014–Revised October 2016
Hardware Description
The Connected LaunchPad includes a TM4C1294NCPDTI microcontroller with an integrated 10/100
Ethernet MAC and PHY. This advanced ARM® Cortex™ M4F MCU has a wide range of peripherals that
are made available to users via the on-board accessories and the BoosterPack connectors. This chapter
explains how those peripherals operate and interface to the microcontroller.
Figure 2-1 provides a high-level block diagram of the Connected LaunchPad.
Figure 2-1. Tiva Connected LaunchPad Evaluation Board Block Diagram
2.1 Functional Description
2.1.1 Microcontroller
The TM4C1294NCPDTI is a 32-bit ARM Cortex-M4F based microcontroller with 1024-kB Flash memory,
256-kB SRAM, 6-kB EEPROM, and 120 MHz operation; integrated 10/100 Ethernet MAC and PHY;
integrated USB 2.0 connectivity with external high-speed USB 3.0 PHY capability; a hibernation module, a
multitude of serial connectivity and motion control PWM; as well as a wide range of other peripherals. See
the TM4C1294NCPDTI microcontroller data sheet for more complete details.
Most of the microcontroller’s signals are routed to 0.1-in (2.54-mm) pitch headers or through-hole solder
pads. An internal multiplexor allows different peripheral functions to be assigned to each of these GPIO
pads. When adding external circuitry, consider the additional load on the evaluation board power rails.
The TM4C1294NCPDTI microcontroller is factory-programmed with a quickstart demo program. The
quickstart program resides in on-chip Flash memory and runs each time power is applied, unless the
quickstart application has been replaced with a user program. The quickstart application automatically
connects to http://ti.exosite.com when an internet connection is provided through the RJ45 Ethernet jack
on the evaluation board.

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Hardware Description
2.1.2 Ethernet Connectivity
The Connected LaunchPad is designed to connect directly to an Ethernet network using RJ45 style
connectors. The microcontroller contains a fully integrated Ethernet MAC and PHY. This integration
creates a simple, elegant and cost-saving Ethernet circuit design. Example code is available for both the
uIP and LwIP TCP/IP protocol stacks. The embedded Ethernet on this device can be programmed to act
as an HTTP server, client or both. The design and integration of the circuit and microcontroller also enable
users to synchronize events over the network using the IEEE1588 precision time protocol.
When configured for Ethernet operation, it is recommended that the user configure LED D3 and D4 to be
controlled by the Ethernet MAC to indicate connection and transmit/receive status.
2.1.3 USB Connectivity
The Connected LaunchPad is designed to be USB 2.0 ready. A TPS2052B load switch is connected to
and controlled by the microcontroller USB peripheral, which manages power to the USB micro A/B
connector when functioning in a USB host. When functioning as a USB device, the entire Connected
LaunchPad can be powered directly from the USB micro A/B connector. Use JP1 to select the desired
power source.
USB 2.0 functionality is provided and supported directly out of the box with the target USB micro A/B
connector. High-speed USB 3.0 functionality can be enabled by adding an external USB PHY. The USB
external PHY control and data signals are provided on the breadboard expansion header X11.
2.1.4 Motion Control
The Connected LaunchPad includes the Tiva C Series Motion Control PWM technology, featuring a PWM
module capable of generating eight PWM outputs. The PWM module provides a great deal of flexibility
and can generate simple PWM signals – for example, those required by a simple charge pump – as well
as paired PWM signals with dead-band delays, such as those required by a half-H bridge driver. Three
generator blocks can also generate the full six channels of gate controls required by a 3-phase inverter
bridge.
A quadrature encoder interface (QEI) is also available to provide motion control feedback.
See the BoosterPacks and Headers section of this document for details about the availability of these
signals on the BoosterPack interfaces.
2.1.5 User Switches and LED's
Two user switches are provided for input and control of the TM4C1294NCPDTI software. The switches
are connected to GPIO pins PJ0 and PJ1.
A reset switch and a wake switch are also provided. The reset switch initiates a system reset of the
microcontroller whenever it is pressed and released. Pressing the reset switch also asserts the reset
signal to the BoosterPack and Breadboard headers. The wake switch is one way to bring the device out of
hibernate mode.
Four user LEDs are provided on the board. D1 and D2 are connected to GPIOs PN1 and PN0. These
LEDs are dedicated for use by the software application. D3 and D4 are connected to GPIOs PF4 and
PF0, which can be controlled by user’s software or the integrated Ethernet module of the microcontroller.
A power LED is also provided to indicate that 3.3 volt power is present on the board.

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Hardware Description
2.1.6 BoosterPacks and Headers
2.1.6.1 BoosterPack 1
The Connected LaunchPad features two fully independent BoosterPack XL connectors. BoosterPack 1, located around the ICDI portion of the
board, is fully compliant with the BoosterPack standard with the single exception of GPIO pin PA6 (X8-16), which does not provide analog
capability. PA6 is located near the bottom of the inner left BoosterPack XL header.
I2C is provided in both the original BoosterPack standard configuration as well as the updated standard location. Use of I2C on the bottom left of
the BoosterPack connections per the updated standard is highly encouraged whenever possible.
Motion control advanced PWM connections are provided on the inner right connector for motion control applications.
Table 2-1 provides a complete listing of the BoosterPack pins and the GPIO alternate functions available on each pin. The TM4C1294NCPDTI
GPIO register GPIOPCTL values are shown for each configuration. The headers in this table are labeled from left to right in ten pin columns. ‘A’
and ‘D’ make up the outer BoosterPack standard pins, ‘B’ and ‘C’ make up the inner BoosterPack XL standard pins.
Table 2-1. BoosterPack 1 GPIO and Signal Muxing
Header Pin Standard
Function GPIO MCU Pin Analog Digital Function (GPIOPCTL Bit Encoding)
1 2 3 5 6 7 8 11 13 14 15
A1 1 +3.3 volts 3.3V
A1 2 Analog PE4 123 AIN9 U1RI - - - - - - - - - SSI1XDAT0
A1 3 UART RX PC4 25 C1- U7Rx - - - - - - - - - EPI0S7
A1 4 UART TX PC5 24 C1+ U7Tx - - - - RTCCLK - - - - EPI0S6
A1 5 GPIO PC6 23 C0+ U5Rx - - - - - - - - - EPI0S5
A1 6 Analog PE5 124 AIN8 - - - - - - - - - - SSIXDAT1
A1 7 SPI CLK PD3 4 AIN12 - I2C8SDA T1CCP1 - - - - - - - SSI2CLk
A1 8 GPIO PC7 22 C0- U5Tx - - - - - - - - - EPI0S4
A1 9 I2C SCL PB2 91 - - I2C0SCL T5CCP0 - - - - - - USB0STP EPI0S27
A1 10 I2C SDA PB3 92 - - I2C0SDA T5CCP1 - - - - - - USB0CLK EPI0S28
B1 1 +5 volts 5V
B1 2 ground GND
B1 3 Analog PE0 15 AIN3 U1RTS - - - - - - - - - -
B1 4 Analog PE1 14 AIN2 U1DSR - - - - - - - - - -
B1 5 Analog PE2 13 AIN1 U1DCD - - - - - - - - - -
B1 6 Analog PE3 12 AIN0 U1DTR - - - - - - - - - -
B1 7 Analog PD7 128 AIN4 U2CTS - T4CCP1 USB0PFLT - - NMI - - - SSI2XDAT2
B1 8 Analog PA6 40 - U2Rx I2C6SCL T3CCP0 USB0EPEN - - - - SSI0XDAT2 - EPI0S8
B1 9 A out PM4 74 TMPR3 U0CTS - T4CCP0 - - - - - - - -
B1 10 A out PM5 73 TMPR2 U0DCD - T4CCP1 - - - - - - - -

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Table 2-1. BoosterPack 1 GPIO and Signal Muxing (continued)
Header Pin Standard
Function GPIO MCU Pin Analog Digital Function (GPIOPCTL Bit Encoding)
1 2 3 5 6 7 8 11 13 14 15
C1 1 PWM PF1 43 - - - - EN0LED2 M0PWM1 - - - - SSI3XDAT0 TRD1
C1 2 PWM PF2 44 - - - - - M0PWM2 - - - - SSI3Fss TRD0
C1 3 PWM PF3 45 - - - - - M0PWM3 - - - - SSI3Clk TRCLK
C1 4 PWM PG0 49 - - I2C1SCL - EN0PPS M0PWM4 - - - - - EPI0S11
C1 5 Capture PL4 85 - - - T0CCP0 - - - - - - USB0D4 EPI0S26
C1 6 Capture PL5 86 - - - T0CCP1 - - - - - - USB0D5 EPI0S33
C1 7 GPIO PL0 81 - - I2C2SDA - - M0FAULT3 - - - - USB0D0 EPI0S16
C1 8 GPIO PL1 82 - - I2C2SCL - - PhA0 - - - - USB0D1 EPI0S17
C1 9 GPIO PL2 83 - - - - C0o PhB0 - - - - USB0D2 EPI0S18
C1 10 GPIO PL3 84 - - - - C1o IDX0 - - - - USB0D3 EPI0S19
D1 1 ground GND
D1 2 PWM PM3 75 - - - T3CCP1 - - - - - - - EPI0S12
D1 3 GPIO PH2 31 - U0DCD - - - - - - - - - EPI0S2
D1 4 GPIO PH3 32 - U0DSR - - - - - - - - - EPI0S3
D1 5 reset RESET
D1 6 SPI MOSI PD1 2 AIN14 - I2C7SDA T0CCP1 C1o - - - - - - SSI2XDAT0
D1 7 SPI MISO PD0 1 AIN15 - I2C7SCL T0CCP0 C0o - - - - - - SSI2XDAT1
D1 8 GPIO PN2 109 - U1DCD U2RTS - - - - - - - - EPI0S29
D1 9 GPIO PN3 110 - U1DSR U2CTS - - - - - - - - EPI0S30
D1 10 GPIO PP2 103 - U0DTR - - - - - - - - USB0NXT EPI0S29

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2.1.6.2 BoosterPack 2
The second BoosterPack XL interface is located near the middle of the board. This interface is fully compliant with the BoosterPack standard, and
adds features not covered by the BoosterPack standard that enable operation with additional BoosterPacks.
An additional analog signal is provided on the outer left header (X6-9). This signal can be used to monitor the touch panel on the popular Kentec
EB-LM4F120-L35 BoosterPack.
Using the jumpers JP4 and JP5, Controller Area Network (CAN) digital receive and transmit signals can be optionally routed to the BoosterPack 2
interface. The location of these signals is consistent with the CAN interface on the Tiva C Series TM4C123G LaunchPad and the Stellaris
LM4F120 LaunchPad. In the default configuration, UART0 is used for the ICDI virtual UART and CAN is not present on the BoosterPack headers.
In this configuration, the ROM serial bootloader can be used over the ICDI virtual UART. When the jumpers are configured for CAN on the
BoosterPack, then UART2 must be used for the ICDI virtual UART.
To comply with both the original and the new BoosterPack standard, I2C is provided on both sides of the BoosterPack connection. Use of I2C on
the bottom left of the BoosterPack connection is highly encouraged where possible, to be in compliance with the new BoosterPack standard. To
provide I2C capability on the right side of the connector, per the original standard, two zero-ohm resistors (R19 and R20) are used to combine the
SPI and I2C signals. These signals are not shared with any other pins on the LaunchPad and therefore removal of these zero-ohm resistors
should not be required. Software should be certain that unused GPIO signals are configured as inputs.
Table 2-2 provides a complete listing of the BoosterPack pins and the GPIO alternate functions available at each pin. The TM4C1294NCPDT
GPIO register GPIOPCTL values are shown for each configuration. The headers in this table are labeled from left to right in ten pin columns. ‘A’
and ‘D’ make up the outer BoosterPack standard pins, ‘B’ and ‘C’ make up the inner BoosterPack XL standard pins.
Table 2-2. BoosterPack 2 GPIO and Signal Muxing
Header Pin Standard
Function GPIO MCU Pin Analog Digital Function (FPIOPCTL Bit Encoding)
1 2 3 5 6 7 8 11 13 14 15
A2 1 3.3V
A2 2 Analog PD2 3 AIN13 - I2C8SCL T1CCP0 C2o - - - - - - SSI2Fss
A2 3 UART RX PP0 118 C2+ U6Rx - - - - - - - - - SSI3XDAT2
A2 4 UART TX PP1 119 C2- U6Tx - - - - - - - - - SSI3XDAT3
A2 5 GPIO
(See JP4) PD4 125 AIN7 U2Rx - T3CCP0 - - - - - - - SSI1XDAT2
PA0 33 - U0Rx I2C9SCL T0CCP0 - - CANORx - - - - -
A2 6 Analog
(See JP5) PD5 126 AIN6 U2Tx - T3CCP1 - - - - - - - SSI1XDAT3
PA1 34 - U0Tx I2C9SDA T0CCP1 - - CAN0Tx - - - - -
A2 7 SPI CLK PQ0 5 - - - - - - - - - - SSI3Clk EPI0S20
A2 8 GPIO PP4 105 - U3RTS U0DSR - - - - - - - USB0D7 -
A2 9 I2C SCL PN5 112 - U1RI U3CTS I2C2SCL - - - - - - - EPIO0S35
A2 10 I2C SDA PN4 111 - U1DTR U3RTS I2C2SDA - - - - - - - EPIO0S34
B2 1 5V
B2 2 GND
B2 3 Analog PB4 121 AIN10 U0CTS I2C5SCL - - - - - - - - SSI1Fss

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Table 2-2. BoosterPack 2 GPIO and Signal Muxing (continued)
Header Pin Standard
Function GPIO MCU Pin Analog Digital Function (FPIOPCTL Bit Encoding)
1 2 3 5 6 7 8 11 13 14 15
B2 4 Analog PB5 120 AIN11 U0RTS I2C5SDA - - - - - - - - SSI1Clk
B2 5 Analog PK0 18 AIN16 U4Rx - - - - - - - - - EPI0S0
B2 6 Analog PK1 19 AIN17 U4Tx - - - - - - - - - EPI0S1
B2 7 Analog PK2 20 AIN18 U4RTS - - - - - - - - - EPI0S2
B2 8 Analog PK3 21 AIN19 u4CTS - - - - - - - - - EPI0S3
B2 9 A out PA4 37 - U3Rx I2C7SCL T2CCP0 - - - - - - - SSI0XDAT0
B2 10 A out PA5 38 - U3Tx I2C7SDA T2CCP1 - - - - - - - SSI0XDAT1
C2 1 PWM PG1 50 - - I2C1SDA - - M0PWM5 - - - - - EPI0S10
C2 2 PWM PK4 63 - - I2C3SCL - EN0LED0 M0PWM6 - - - - - EPI0S32
C2 3 PWM PK5 62 - - I2C3SDA - EN0LED2 M0PWM7 - - - - - EPI0S31
C2 4 PWM PM0 78 - - - T2CCP0 - - - - - - - EPI0S15
C2 5 Capture PM1 77 - - - T2CCP1 - - - - - - - EPI0S14
C2 6 Capture PM2 76 - - - T3CCP0 - - - - - - - EPI0S13
C2 7 GPIO PH0 29 - U0RTS - - - - - - - - - EPI0S0
C2 8 GPIO PH1 30 - U0CTS - - - - - - - - - EPI0S1
C2 9 GPIO PK6 61 - - I2C4SCL - EN0LED1 M0FAULT1 - - - - - EPI0S25
C2 10 GPIO PK7 60 - U0RI I2C4SDA - RTCCLK M0FAULT2 - - - - - EPI0S24
D2 1 GND
D2 2 PWM PM7 71 TMPR0 U0RI - T5CCP1 - - - - - - - -
D2 3 GPIO PP5 106 - U3CTS I2C2SDL - - - - - - - USB0D6 -
D2 4 GPIO PA7 41 - U2Tx I2C6SDA T3CCP1 USB0PFLT - - - USB0EPEN SSI0XDAT3 - EPI0S9
D2 5 RESET
D2 6 SPI MOSI PQ2 11 - - - - - - - - - - SSI3XDAT0 EPI0S22
I2C PA3 36 - U4Tx I2C8SDA T1CCP1 - - - - - - - SSI0Fss
D2 7 SPI MISO PQ3 27 - - - - - - - - - - SSI3XDAT1 EPI0S23
I2C PA2 35 - U4Rx I2C8SCL T1CCP0 - - - - - - - SSI0Clk
D2 8 GPIO PP3 104 - U1CTS U0DCD - - - - - - - USB0DIR EPI0S30
D2 9 GPIO PQ1 6 - - - - - - - - - - SSI3Fss EPI0S21
D2 10 GPIO PM6 72 TMPR1 U0DSR - T5CCP0 - - - - - - - -

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2.1.6.3 Breadboard Connection
The breadboard adapter section of the board is a set of 98 holes on a 0.1 inch grid. Properly combined
with a pair of right angle headers, the entire Connected LaunchPad can be plugged directly into a
standard 300 mil (0.3 inch) wide solder-less breadboard. The right angle headers and breadboard are not
provided with this kit. Suggested part numbers are Samtec TSW-149-09-L-S-RE and TSW-149-08-L-S-RA
right angle pin headers and Twin industries TW-E40-1020 solder-less breadboard. Samtec TSW-149-09-
F-S-RE and TSW-149-09-F-S-RA may be substituted.
A detailed explanation of how to install the headers is available on the TI LaunchPad Wiki or at
http://users.ece.utexas.edu/~valvano/EE345L/Labs/Fall2011/LM3S1968soldering.pdf.
Nearly all microcontroller signals are made available at the breadboard adapter holes (X11). These signals
are grouped by function where possible. For example, all EPI signals are grouped on one side of the
connector. Many of the analog signals are grouped near VREF, and UART, SSI and I2C signals are
grouped by peripheral to make expansion and customization simpler.
Table 2-3 and Table 2-4 show the GPIO pin and signal muxing for the X11 breadboard adapter pads.

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Table 2-3. X11 Breadboard Adapter Odd-Numbered Pad GPIO and Signal Muxing
Pin Port MCU
PIN Analog Digital Function (GPIOPCTL Bit Encoding)
1 2 3 5 6 7 8 11 13 14 15
1 3V3
3 GND
5 PB4 121 AIN10 U0CTS I2C5SCL - - - - - - - - SSI1Fss
7 PB5 120 AIN11 U0RTS I2C5SDA - - - - - - - - SSI1Clk
9 PH0 29 - U0RTS - - - - - - - - - EPI0S0
11 PH1 30 - U0CTS - - - - - - - - - EPI0S1
13 PH2 31 - U0DCD - - - - - - - - - EPI0S2
15 PH3 32 - U0DSR - - - - - - - - - EPI0S3
17 PC7 22 C0- U5Tx - - - - - - - - - EPI0S4
19 PC6 23 C0+ U5Rx - - - - - - - - - EPI0S5
21 PC5 24 C1+ U7Tx - - - - RTCCLK - - - - EPI0S6
23 PC4 25 C1- U7Rx - - - - - - - - - EPI0S7
25 PA6 40 - U2Rx I2C6SCL T3CCP0 USB0EPEN - - - - SSI0XDAT2 - EPI0S8
27 PA7 41 - U2Tx I2C6SDA T3CCP1 USB0PFLT - - - USB0EPEN SSI0XDAT3 - EPI0S9
29 PG1 50 - - I2C1SDA - - M0PWM5 - - - - - EPI0S10
31 PG0 49 - - I2C1SCL - EN0PPS M0PWM4 - - - - - EPI0S11
33 PM3 75 - - - T3CCP1 - - - - - - - EPI0S12
35 GND
37 PM2 76 - - - T3CCP0 - - - - - - - EPI0S13
39 PM1 77 - - - T2CCP1 - - - - - - - EPI0S14
41 PM0 78 - - - T2CCP0 - - - - - - - EPI0S15
43 PL0 81 - - I2C2SDA - - M0FAULT3 - - - - USB0D0 EPI0S16
45 PL1 82 - - I2C2SCL - - PhA0 - - - - USB0D1 EPI0S17
47 PL2 83 - - - - C0o PhB0 - - - - USB0D2 EPI0S18
49 PL3 84 - - - - C1o IDX0 - - - - USB0D3 EPI0S19
51 PQ0 5 - - - - - - - - - - SSI3Clk EPI0S20
53 PQ1 6 - - - - - - - - - - SSI3Fss EPI0S21
55 PQ2 11 - - - - - - - - - - SSI3XDAT0 EPI0S22
57 PQ3 27 - - - - - - - - - - SSI3XDAT1 EPI0S23
59 PK7 60 - U0RI I2C4SDA - - - - - - EPI0S24
61 GND
63 PK6 61 - - I2C4SCL - EN0LED1 M0FAULT1 - - - - - EPI0S25
65 PL4 85 - - - T0CCP0 - - - - - - USB0D4 EPI0S26

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Table 2-3. X11 Breadboard Adapter Odd-Numbered Pad GPIO and Signal Muxing (continued)
Pin Port MCU
PIN Analog Digital Function (GPIOPCTL Bit Encoding)
1 2 3 5 6 7 8 11 13 14 15
67 PB2 91 - - I2C0SCL T5CCP0 - - - - - - USB0STP EPI0S27
69 PB3 92 - - I2C0SDA T5CCP1 - - - - - - USB0CLK EPI0S28
71 PP2 103 - U0DTR - - - - - - - - USB0NXT EPI0S29
73 PP3 104 - U1CTS U0DCD - - - RTCCLK - - - USB0DIR EPI0S30
75 PK5 62 - - I2C3SDA - EN0LED2 M0PWM7 - - - - - EPI0S31
77 PK4 63 - - I2C3SCL - EN0LED0 M0PWM6 - - - - - EPI0S32
79 PL5 86 - - - T0CCP1 - - - - - - USB0D5 EPI0S33
81 PN4 111 - U1DTR U3RTS I2C2SDA - - - - - - - EPI0S34
83 PN5 112 - U1RI U3CTS I2C2SCL - - - - - - - EPI0S35
85 PN0 107 - U1RTS - - - - - - - - - -
87 PN1 108 - U1CTS - - - - - - - - - -
89 PN2 109 - U1DCD U2RTS - - - - - - - - EPI0S29
91 PN3 110 - U1DSR U2CTS - - - - - - - - EPI0S30
93 PQ4 102 - U1Rx - - - - - DIVSCLK - - - -
95 WAKE
97 5V
Table 2-4. X11 Breadboard Adapter Even-Numbered Pad GPIO and Signal Muxing
Pin Port MCU
PIN Analog Digital Function (GPIOPCTL Bit Encoding)
1 2 3 5 6 7 8 11 13 14 15
2 5V
4 GND
6 PA2 35 - U4Rx I2C8SCL T1CCP0 - - - - - - - SSI0Clk
8 PA3 36 - U4Tx I2C8SDA T1CCP1 - - - - - - - SSI0Fss
10 PA4 37 - U3Rx I2C7SCL T2CCP0 - - - - - - - SSI0XDAT0
12 PA5 38 - U3Tx I2C7SDA T2CCP1 - - - - - - - SSI0XDAT1
14 PE0 15 AIN3 U1RTS - - - - - - - - - -
16 PE1 14 AIN2 U1DSR - - - - - - - - - -
18 PE2 13 AIN1 U1DCD - - - - - - - - - -
20 PE3 12 AIN0 U1DTR - - - - - - - - - -
22 PE4 123 AIN9 U1RI - - - - - - - - - SSI1XDAT0
24 PE5 124 AIN8 - - - - - - - - - - SSI1XDAT1

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Table 2-4. X11 Breadboard Adapter Even-Numbered Pad GPIO and Signal Muxing (continued)
Pin Port MCU
PIN Analog Digital Function (GPIOPCTL Bit Encoding)
1 2 3 5 6 7 8 11 13 14 15
26 PK0 18 AIN16 U4Rx - - - - - - - - - EPI0S0
28 PK1 19 AIN17 U4Tx - - - - - - - - - EPI0S1
30 PK2 20 AIN18 U4RTS - - - - - - - - - EPI0S2
32 PK3 21 AIN19 U4CTS - - - - - - - - - EPI0S3
34 VREF
36 GND
38 PD5 126 AIN6 U2Tx - T3CCP1 - - - - - - - SSI1XDAT3
40 PD4 125 AIN7 U2Rx - T3CCP0 - - - - - - - SSI1XDAT2
42 PD7 128 AIN4 U2CTS - T4CCP1 USB0PFLT - - NMI - - - SSI2XDAT2
44 PD6 127 AIN5 U2RTS - T4CCP0 USB0EPEN - - - - - - SSI2XDAT3
46 PD3 4 AIN12 - I2C8SDA T1CCP1 - - - - - - - SSI2Clk
48 PD1 2 AIN14 - I2C7SDA T0CCP1 C1o - - - - - - SSI2XDAT0
50 PD0 1 AIN15 - I2C7SCL T0CCP0 C0o - - - - - - SSI2XDAT1
52 PD2 3 AIN13 - I2C8SCL T1CCP0 C2o - - - - - - SSI2Fss
54 PP0 118 C2+ U6Rx - - - - - - - - - SSI3XDAT2
56 PP1 119 C2- U6Tx - - - - - - - - - SSI3XDAT3
58 PB0 95 USB0ID U1Rx I2C5SCL T4CCP0 - - CAN1Rx - - - - -
60 PB1 96 USB0VBUS U1Tx I2C5SDA T4CCP1 - - CAN1Tx - - - - -
62 GND
64 PF4 46 - - - - EN0LED1 M0FAULT0 - - - - SSI3XDAT2 TRD3
66 PF0 42 - - - - EN0LED0 M0PWM0 - - - - SSI3XDAT1 TRD2
68 PF1 43 - - - - EN0LED2 M0PWM1 - - - - SSI3XDAT0 TRD1
70 PF2 44 - - - - - M0PWM2 - - - - SSI3Fss TRD0
72 PF3 45 - - - - - M0PWM3 - - - - SSI3Clk TRCLK
74 PA0 33 - U0Rx I2C9SCL T0CCP0 - - CAN0Rx - - - - -
76 PA1 34 - U0Tx I2C9SDA T0CCP1 - - CAN0Tx - - - - -
78 PP4 105 - U3RTS U0DSR - - - - - - - USB0D7 -
80 PP5 106 - U3CTS I2C2SCL - - - - - - - USB0D6 -
82 PJ0 116 - U3Rx - - - - - - - - -
84 PJ1 117 - U3Tx - - - - - - - - - -
86 PM7 71 TMPR0 U0RI - T5CCP1 - - - - - - - -
88 PM6 72 TMPR1 U0DSR - T5CCP0 - - - - - - - -
90 PM5 73 TMPR2 U0DCD - T4CCP1 - - - - - - - -

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Table 2-4. X11 Breadboard Adapter Even-Numbered Pad GPIO and Signal Muxing (continued)
Pin Port MCU
PIN Analog Digital Function (GPIOPCTL Bit Encoding)
1 2 3 5 6 7 8 11 13 14 15
92 PM4 74 TMPR3 U0CTS - T4CCP0 - - - - - - - -
94 RESET
96 GND
98 3V3

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2.1.6.4 Other Headers and Jumpers
JP1 is provided to select the power input source for the Connected LaunchPad. The top position is for
BoosterPack power; this position also disconnects both USB voltages from the board’s primary 5-volt
input. In the top position, the TPS2052B does not limit current so additional care should be exercised. The
middle position draws power from the USB connector on the left side of the board near the Ethernet jack.
The bottom position is the default, in which power is drawn from the ICDI (Debug) USB connection.
JP2 separates the MCU 3.3-volt power domain from the rest of the 3.3-volt power on the board allowing
an ammeter to be used to obtain more accurate measurements of microcontroller power consumption.
JP3 isolates the output of the TPS73733 LDO from the board’s 3.3-V power domain.
JP4 and JP5 are used to configure CAN signals to the BoosterPack 2 interface. In the default horizontal
configuration, CAN is not present on the BoosterPack. UART2 goes to the BoosterPack and UART 0 goes
to the ICDI virtual serial port to provide ROM serial bootloader capability. In the vertical CAN-enabled
configuration, UART2 goes to the ICDI virtual serial port and CAN signals are available on the
BoosterPack. The ROM serial bootloader is not available to the ICDI virtual serial port while the jumpers
are in the CAN position.
Figure 2-2 shows the default configuration and relative location of the jumpers on the board.
Figure 2-2. Default Jumper Locations
2.2 Power Management
2.2.1 Power Supplies
The Connected LaunchPad can be powered from three different input options:
• On-board ICDI USB cable (Debug, Default)
• Target USB cable
• BoosterPack or Breadboard adapter connection
The JP1 power-select jumper is used to select one of the power sources.
In addition, the JP3 power jumper can be used to isolate the 3.3-volt output of the TPS73733 from the
board’s 3.3-volt rail.
A TPS2052B load switch is used to regulate and control power to the Target USB connector when the
microcontroller is acting in USB host mode. This load switch also limits current to the BoosterPack and
Breadboard adapter headers when the JP1 jumper is in the ICDI position.